View Filing Data

(0.7)

Other comprehensive income (loss) attributable to noncontrolling interest

5.9

0.3

Shares issued under stock incentive plans net of forfeitures

6.2

0.2

0.5

(0.3)

Stock issued for stock options exercised, net

21.4

1.3

20.1

Stock-based compensation expense

25.4

Cash dividends declared

(23.2)

Issuance of treasury shares

1.1

(0.2)

0.9

Purchase of common stock for treasury

(42.3)

Purchases of shares under employee stock plans

(5.3)

Noncontrolling Interest, Increase from Subsidiary Equity Issuance

0.8

Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests

(2.1)

Ending Balance at Dec. 30, 2017

955.2

106.4

149.2

992.2

(75.2)

(223.0)

5.6

Increase (Decrease) in Stockholders' Equity [Roll Forward]

Net earnings attributable to Wolverine World Wide, Inc.

200.1

Net earnings attributable to noncontrolling interests

0.2

200.3

Other comprehensive income (loss) attributable to noncontrolling interest

^[1]

(5.0)

(0.2)

Shares issued under stock incentive plans net of forfeitures

(5.2)

1.9

0.2

1.7

Stock issued for stock options exercised, net

24.0

1.4

22.6

Stock-based compensation expense

31.2

Cash dividends declared

(30.7)

Issuance of treasury shares

0.3

(0.1)

0.2

Purchase of common stock for treasury

(174.7)

Purchases of shares under employee stock plans

(6.9)

New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification

0.0

8.1

(8.1)

Ending Balance at Dec. 29, 2018

991.6

107.6

201.4

1,169.7

(88.3)

(404.4)

5.6

Increase (Decrease) in Stockholders' Equity [Roll Forward]

Net earnings attributable to Wolverine World Wide, Inc.

128.5

Net earnings attributable to noncontrolling interests

0.4

128.9

Other comprehensive income (loss) attributable to noncontrolling interest

^[1]

(13.8)

0.0

Shares issued under stock incentive plans net of forfeitures

(13.8)

(4.1)

(0.1)

4.2

Stock issued for stock options exercised, net

12.2

0.6

11.6

Stock-based compensation expense

24.5

Cash dividends declared

(34.9)

Issuance of treasury shares

0.3

(0.1)

0.2

Purchase of common stock for treasury

(319.2)

Purchases of shares under employee stock plans

(12.8)

Noncontrolling Interest, Increase from Subsidiary Equity Issuance

5.7

Ending Balance at Dec. 28, 2019

$ 778.4

$ 108.3

$ 233.4

$ 1,263.3

$ (102.1)

$ (736.2)

$ 11.7

[1]	Other comprehensive income (loss) is reported net of taxes and noncontrolling interest.

Revenue From Contracts With Customers Contract Balances (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Revenue from Contract with Customer [Abstract]
Product returns reserve	$ 11.4	$ 13.6
Customer markdowns reserve	4.4	4.0
Other sales incentives reserve	2.3	2.3
Customer rebates liability	12.0	12.8
Customer advances liability	$ 7.2	$ 3.8

Financial Instruments and Risk Management (Additional Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Financial Instruments And Derivatives [Line Items]
Derivative Asset	$ 1.2
Interest rate swap [Member] \| Maximum [Member]
Financial Instruments And Derivatives [Line Items]
Derivative, Maturity Date	Jul. 13, 2020
Interest rate swap [Member] \| Maximum [Member]
Financial Instruments And Derivatives [Line Items]
Derivative, Maturity Date	Dec. 06, 2023
Foreign exchange contracts [Member]
Financial Instruments And Derivatives [Line Items]
Maximum remaining maturity of foreign currency derivatives	545 days	524 days
Cross Currency Interest Rate Contract [Member]
Financial Instruments And Derivatives [Line Items]
Derivative, Maturity Date	Sep. 01, 2021
Derivative, Fixed Interest Rate	2.75%
Derivative, Forward Interest Rate	5.00%

Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 28, 2019

Equity [Abstract]

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

The change in accumulated other comprehensive income (loss) during fiscal years 2019 and 2018 is as follows:



(In millions)	Foreign currency translation adjustments			Derivatives				Pension adjustments				Total
Balance of AOCI as of December 30, 2017	$	(32.7	)	$	(13.9	)		$	(28.6	)		$	(75.2	)
Other comprehensive income (loss) before reclassifications ⁽¹⁾	(20.3		)	14.4				(9.9		)		(15.8		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			3.8			⁽²⁾	10.5			⁽³⁾	14.3
Income tax (expense) benefit	—			(1.3		)		(2.2		)		(3.5		)
Net reclassifications	—			2.5				8.3				10.8
Net current-period other comprehensive income (loss) ⁽¹⁾	(20.3		)	16.9				(1.6		)		(5.0		)
Reclassifications to retained earnings ⁽⁴⁾	$	—		$	(2.1	)		$	(6.0	)		$	(8.1	)
Balance of AOCI as of December 29, 2018	$	(53.0	)	$	0.9			$	(36.2	)		$	(88.3	)
Other comprehensive income (loss) before reclassifications ⁽¹⁾	5.4			0.9				(14.6		)		(8.3		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			(9.8		)	⁽²⁾	2.6			⁽³⁾	(7.2		)
Income tax (expense) benefit	—			2.2				(0.5		)		1.7
Net reclassifications	—			(7.6		)		2.1				(5.5		)
Net current-period other comprehensive income (loss) ⁽¹⁾	5.4			(6.7		)		(12.5		)		(13.8		)
Balance of AOCI as of December 28, 2019	$	(47.6	)	$	(5.8	)		$	(48.7	)		$	(102.1	)

Revenue From Contracts With Customers (Notes)

12 Months Ended

Dec. 28, 2019

Revenue From Contracts With Customers [Abstract]

Revenue from Contract with Customer [Text Block]

REVENUE FROM CONTRACTS WITH CUSTOMERS

The Company provides disaggregated revenue for the wholesale and consumer-direct sales channels, which are reconciled to the Company’s reportable operating segments. The wholesale channel includes royalty revenues, which operates in a similar manner due to similar oversight and management, customer base, the performance obligation (footwear and apparel goods) and point in time completion of the performance obligation.



	Fiscal Year
(in millions)	2019		2018		2017
Wolverine Michigan Group:
Wholesale	$	1,134.9	$	1,129.2	$	1,144.3
Consumer-direct	164.8		143.0		123.5
Total	1,299.7		1,272.2		1,267.8
Wolverine Boston Group:
Wholesale	743.4		762.0		814.5
Consumer-direct	167.5		133.5		174.3
Total	910.9		895.5		988.8
Other:
Wholesale	57.9		64.1		74.3
Consumer-direct	5.2		7.4		19.1
Total	63.1		71.5		93.4
Total revenue	$	2,273.7	$	2,239.2	$	2,350.0

The Company has agreements to license symbolic intellectual property with minimum guarantees and/or fixed consideration. Revenue is recognized under these contracts over the contractual term as the Company believes time is the appropriate measure of progress and best represents a faithful depiction of the transfer of goods under the contract. The Company is due $33.6 million of remaining fixed consideration under these license agreements as of December 28, 2019, which will be recognized over the remaining term of the contracts, which expire at various dates through 2024.

Reserves for Variable Consideration

Revenue is recorded at the net sales price (“transaction price”), which includes estimates of variable consideration for which reserves are established. Components of variable consideration include trade discounts and allowances, product returns, customer markdowns, customer rebates and other sales incentives relating to the sale of the Company’s products. These reserves, as detailed below, are based on the amounts earned, or to be claimed on the related sales. These estimates take into consideration a range of possible outcomes, which are probability-weighted in accordance with the expected value method for relevant factors such as current contractual and statutory requirements, specific known market events and trends, industry data and forecasted customer buying and payment patterns. Overall, the revenue recognized by the Company, net of these reserves reflect the Company’s best estimates of the amount of consideration to which it is entitled based on the terms of the respective underlying contracts. Revenue recognized during fiscal years 2019 and 2018, related to the Company’s contract liabilities, was nominal.

The Company’s contract balances are as follows:



(In millions)	December 28, 2019		December 29, 2018
Product returns reserve	$	11.4	$	13.6
Customer markdowns reserve	4.4		4.0
Other sales incentives reserve	2.3		2.3
Customer rebates liability	12.0		12.8
Customer advances liability	7.2		3.8

The amount of variable consideration included in the transaction price may be constrained and is included in the net sales price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized under the contract will not occur in a future period. Actual amounts of consideration ultimately received may differ from initial estimates. If actual results in the future vary from initial estimates, the Company subsequently adjusts these estimates, which would affect net revenue and earnings in the period such variances become known.

Product Returns

Consistent with industry practice, the Company offers limited product return rights for various return scenarios. The Company estimates the amount of product sales that may be returned by customers and records this estimate as a reduction of revenue in the period the related product revenue is recognized, and a reduction to trade receivables, net on the consolidated balance sheets. The Company believes there is sufficient current and historical information to record an estimate of the expected value of product returns although actual returns could differ from recorded amounts.

Customer Markdowns

Markdowns represent the estimated reserve resulting from commitments to sell products to the Company’s customers at prices lower than the list prices charged to customers who directly purchase the product from the Company. Customers charge the Company for the difference between what they pay for the product and the ultimate selling price to the end consumer. The reserve is established in the same period that the related revenue is recognized, resulting in a reduction of product revenue and a reduction to trade receivables, net on the consolidated balance sheets.

Other Sales Incentives

The Company accrues for other customer allowances for certain customers that purchase required volumes or meet other criteria. These reserves are established in the same period that the related revenue is recognized, resulting in a reduction of product revenue and a reduction to trade receivables, net on the consolidated balance sheets depending on the nature of the item.

Customer Rebates

The Company accrues for customer rebates related to customers who purchase required volumes or meet other criteria. These reserves are established in the same period that the related revenue is recognized, resulting in a reduction of product revenue and an establishment of a current liability on the consolidated balance sheets.

Customer Advances

The Company recognizes a liability for amounts received from customers before revenue is recognized. Customer advances are recognized as a current liability on the consolidated balance sheets.

Revenue From Contracts With Customers Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Revenue	$ 607.4	$ 574.3	$ 568.6	$ 523.4	$ 579.6	$ 558.6	$ 566.9	$ 534.1	$ 2,273.7	$ 2,239.2	$ 2,350.0
Wolverine Michigan Group [Member]
Revenue									1,299.7	1,272.2	1,267.8
Wolverine Michigan Group [Member] \| Sales Channel, Directly to Consumer [Member]
Revenue									164.8	143.0	123.5
Wolverine Michigan Group [Member] \| Sales Channel, Through Intermediary [Member]
Revenue									1,134.9	1,129.2	1,144.3
Wolverine Boston Group [Member]
Revenue									910.9	895.5	988.8
Wolverine Boston Group [Member] \| Sales Channel, Directly to Consumer [Member]
Revenue									167.5	133.5	174.3
Wolverine Boston Group [Member] \| Sales Channel, Through Intermediary [Member]
Revenue									743.4	762.0	814.5
Other Segments [Member]
Revenue									63.1	71.5	93.4
Other Segments [Member] \| Sales Channel, Directly to Consumer [Member]
Revenue									5.2	7.4	19.1
Other Segments [Member] \| Sales Channel, Through Intermediary [Member]
Revenue									$ 57.9	$ 64.1	$ 74.3

Stock-Based Compensation Summary of Transactions Under Stock Option Plans (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares Under Option, Beginning Balance	4,702,002	6,089,664	7,493,662
Granted, Shares Under Option	25,471	28,171	93,274
Exercised, Shares Under Option	(681,389)	(1,359,387)	(1,267,269)
Cancelled, Shares Under Option	(12,977)	(56,446)	(230,003)
Shares Under Option, Ending Balance	4,033,107	4,702,002	6,089,664	7,493,662
Nonvested at December 28, 2019	(44,250)
Exercisable at December 28, 2019	3,988,857
Weighted-Average Exercise Price, Beginning Balance	$ 20.83	$ 20.05	$ 19.55
Granted, Weighted-Average Exercise Price	34.81	31.85	23.85
Exercised, Weighted-Average Exercise Price	17.87	17.69	17.15
Cancelled, Weighted-Average Exercise Price	23.97	17.12	21.37
Weighted-Average Exercise Price, Ending Balance	21.41	$ 20.83	$ 20.05	$ 19.55
Weighted-average exercise price of options, exercisable	$ 21.27
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Years)	4 years 4 months 24 days	5 years 2 months 12 days	5 years 9 months 18 days	6 years 4 months 24 days
Average remaining contractual term, exercisable	4 years 4 months 24 days
Aggregate Intrinsic Value	$ 49.8	$ 54.5	$ 72.1	$ 28.7
Exercisable, aggregate intrinsic value	$ 49.7

Retirement Plans - Asset Allocations (Detail) - USD ($)
$ in Millions

12 Months Ended

Dec. 28, 2019

Dec. 29, 2018

Dec. 30, 2017

Schedule Of Other Postretirement Benefits [Line Items]

Document Period End Date

Dec. 28, 2019

Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage

$ 287.6

$ 254.4

$ 299.6

100.00%

Equity securities [Member]

Schedule Of Other Postretirement Benefits [Line Items]

Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage

56.40%

54.40%

Equity securities [Member] | Fair Value Measured at Net Asset Value Per Share [Member]

Schedule Of Other Postretirement Benefits [Line Items]

Fixed income securities [Member]

^[1]

$ 162.2

$ 138.2

Schedule Of Other Postretirement Benefits [Line Items]

Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage

36.90%

38.50%

Fixed income securities [Member] | Fair Value Measured at Net Asset Value Per Share [Member]

Schedule Of Other Postretirement Benefits [Line Items]

Real Estate Investment [Member]

^[1]

$ 106.2

$ 98.0

Schedule Of Other Postretirement Benefits [Line Items]

Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage

5.90%

6.30%

Real Estate Investment [Member] | Fair Value Measured at Net Asset Value Per Share [Member]

Schedule Of Other Postretirement Benefits [Line Items]

Other Investments [Member]

^[1]

$ 16.9

$ 16.1

Schedule Of Other Postretirement Benefits [Line Items]

Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage

0.80%

Other Investments [Member] | Fair Value, Inputs, Level 3 [Member]

Schedule Of Other Postretirement Benefits [Line Items]

Schedule of Consideration Transferred [Table Text Block]

^[2]

$ 2.3

$ 2.1

[1]	In accordance with ASC 820, Fair Value Measurement (“ASC 820”), certain investments are measured at fair value using the net asset value per share as a practical expedient. These assets have not been classified in the fair value hierarchy.
[2]	In accordance with ASC 820, investments have been measured using valuation techniques in which one or more significant inputs are unobservable (Level 3). See Note 16 for additional information.

Stock-Based Compensation Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Years)	4 years 4 months 24 days	5 years 2 months 12 days	5 years 9 months 18 days	6 years 4 months 24 days
Stock-based compensation expense	$ 24.5	$ 31.2	$ 25.4
Income tax benefits for grants	$ 4.8	6.4	8.6
Maximum expiry period of options granted from the grant date	10 years
Vesting period of options granted	3 years
Lapsing period of restrictions related to restricted stock issued	three- to four-year
Total pretax intrinsic value of options exercised	$ 10.7	$ 21.2	12.5
Closing stock price	$ 33.74
Stock options exercisable and in-the-money, number	3,974,757	4,048,842
Stock options exercisable and in-the-money, weighted average exercise price	$ 21.29	$ 21.09
Available For Issuance [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	5,669,643
Option Or Stock Appreciation Right [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	1.0
Non-Stock Option Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	2.6
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants	$ 0.2	$ 0.4	$ 1.8
Weighted-average period of recognition	1 year 4 months 24 days	9 months 18 days	1 year
Restricted Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants	$ 19.9	$ 20.2	$ 18.3
Weighted-average period of recognition	1 year 6 months	1 year 7 months 6 days	1 year 9 months 18 days
Total fair value of shares vested	$ 23.7	$ 17.4	$ 10.6
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants	$ 4.5	$ 19.0	$ 16.9
Weighted-average period of recognition	1 year 1 month 6 days	1 year 8 months 12 days	1 year 10 months 24 days
Total fair value of shares vested	$ 22.8	$ 7.3	$ 4.0

Divestitures (Details) - USD ($) $ in Millions	12 Months Ended
Divestitures (Details) - USD ($) $ in Millions	Dec. 29, 2018	Dec. 30, 2017
Stride Rite [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Consideration		$ 16.9
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		0.2
Disposal Group, Including Discontinued Operation, Inventory		17.1
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		16.7
Disposal Group, Including Discontinued Operation, Other Assets, Current		1.4
Disposal Group, Including Discontinued Operation, Accrued Liabilities		(1.8)
Sebago [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Consideration		14.3
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		8.4
Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent		5.4
Disposal Group Including Discontinued Operation Amortizable Intangibles Noncurrent		0.2
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		5.6
Department of Defense Contract Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Consideration	$ 7.8
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ (1.6)
Disposal Group, Including Discontinued Operation, Inventory		5.6
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		9.1
Disposal Group, Including Discontinued Operation, Other Assets, Current		0.5
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent		$ 3.0

Business Acquisitions Business Acquisition (Tables)

12 Months Ended

Dec. 28, 2019

Business Combinations [Abstract]

The detailed amounts of each component of the purchase consideration are as follows:



(In millions)	Purchase Consideration
Cash paid	$	15.1
Extinguishment of Sportlab’s accounts payable balance	4.6
Contingent consideration	5.5
Total purchase consideration	$	25.2

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The final allocation of the purchase price as of December 28, 2019 was:



(In millions)	Final Valuation
Accounts receivable	$	1.8
Inventories	6.2
Goodwill	12.0
Amortizable intangibles	12.9
Total assets acquired	32.9
Deferred income taxes	3.2
Other liabilities	4.5
Total liabilities assumed	7.7
Net assets acquired	$	25.2

Debt (Schedule of Borrowings) (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Debt Instrument [Line Items]
Borrowings under revolving credit agreements	$ 360.0	$ 125.0
Capital lease obligations	0.0	0.4
Unamortized deferred financing costs	(4.1)	(4.9)
Debt and Capital Lease Obligations	798.4	570.5
Term Loan A [Member] \| December Sixth Two Thousand Twenty Three [Domain]
Debt Instrument [Line Items]
Total debt	192.5	200.0
Senior Notes [Member] \| September First Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Total debt	$ 250.0	$ 250.0

Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 28, 2019

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

AOCI represents net earnings and any revenue, expenses, gains and losses that, under U.S. GAAP, are excluded from net earnings and recognized directly as a component of stockholders’ equity.

The change in accumulated other comprehensive income (loss) during fiscal years 2019 and 2018 is as follows:



(In millions)	Foreign currency translation adjustments			Derivatives				Pension adjustments				Total
Balance of AOCI as of December 30, 2017	$	(32.7	)	$	(13.9	)		$	(28.6	)		$	(75.2	)
Other comprehensive income (loss) before reclassifications ⁽¹⁾	(20.3		)	14.4				(9.9		)		(15.8		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			3.8			⁽²⁾	10.5			⁽³⁾	14.3
Income tax (expense) benefit	—			(1.3		)		(2.2		)		(3.5		)
Net reclassifications	—			2.5				8.3				10.8
Net current-period other comprehensive income (loss) ⁽¹⁾	(20.3		)	16.9				(1.6		)		(5.0		)
Reclassifications to retained earnings ⁽⁴⁾	$	—		$	(2.1	)		$	(6.0	)		$	(8.1	)
Balance of AOCI as of December 29, 2018	$	(53.0	)	$	0.9			$	(36.2	)		$	(88.3	)
Other comprehensive income (loss) before reclassifications ⁽¹⁾	5.4			0.9				(14.6		)		(8.3		)
Amounts reclassified from accumulated other comprehensive income (loss)	—			(9.8		)	⁽²⁾	2.6			⁽³⁾	(7.2		)
Income tax (expense) benefit	—			2.2				(0.5		)		1.7
Net reclassifications	—			(7.6		)		2.1				(5.5		)
Net current-period other comprehensive income (loss) ⁽¹⁾	5.4			(6.7		)		(12.5		)		(13.8		)
Balance of AOCI as of December 28, 2019	$	(47.6	)	$	(5.8	)		$	(48.7	)		$	(102.1	)


⁽¹⁾	Other comprehensive income (loss) is reported net of taxes and noncontrolling interest.


⁽²⁾	Amounts related to foreign currency derivatives deemed to be highly effective are included in cost of goods sold. Amounts related to foreign currency derivatives that are no longer deemed to be highly effective are included in other income. Amounts related to interest rate swaps and the cross currency swap are included in interest expense.


⁽³⁾	Amounts reclassified are included in the computation of net pension expense, and includes $7.2 million in fiscal 2018 related to a settlement loss.

⁽⁴⁾

Amounts reclassified to retained earnings upon adoption of ASU 2017-12 and ASU 2018-02.

Financial Instruments and Risk Management (Tables)

12 Months Ended

Dec. 28, 2019

Investments, All Other Investments [Abstract]

Schedule of Derivative Instruments [Table Text Block]



(Dollars in millions)	December 28, 2019		December 29, 2018
Foreign exchange contracts:
Hedge contracts	$	246.3	$	220.3
Non-hedge contracts	7.3		4.8
Interest rate swap	355.8		181.3
Cross currency swap	79.8		95.8

Schedule of Derivative Assets at Fair Value [Table Text Block]

The recorded fair values of the Company’s derivative instruments are as follows:



(In millions)	December 28, 2019			December 29, 2018
Financial assets:
Foreign exchange contracts - hedge	$	2.3		$	8.7
Interest rate swap	—			1.6
Financial liabilities:
Foreign exchange contracts - hedge	$	(1.8	)	$	—
Interest rate swap	(1.8		)	—
Cross currency swap	(3.0		)	(8.2		)

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Revenue From Contracts With Customers License Contracts (Details) $ in Millions	Dec. 28, 2019 USD ($)
Revenue from Contract with Customer [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 33.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2024

Income Taxes

12 Months Ended

Dec. 28, 2019

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

The geographic components of earnings (loss) before income taxes are as follows:



	Fiscal Year
(In millions)	2019		2018		2017
United States	$	79.3	$	159.2	$	(78.2	)
Foreign	66.6		68.2		67.6
Earnings (loss) before income taxes	$	145.9	$	227.4	$	(10.6	)

The provisions for income tax expense (benefit) consist of the following:



	Fiscal Year
(In millions)	2019			2018		2017
Current expense:
Federal	$	10.6		$	6.7	$	48.1
State	0.5			2.4		1.9
Foreign	12.5			10.9		14.0
Deferred expense (credit):
Federal	(5.8		)	2.1		(72.0		)
State	(2.0		)	3.3		(0.2		)
Foreign	1.2			1.7		(1.7		)
Income tax provision	$	17.0		$	27.1	$	(9.9	)

A reconciliation of the Company’s total income tax expense and the amount computed by applying the statutory federal income tax rate to earnings before income taxes is as follows:



	Fiscal Year
(In millions)	2019			2018			2017
Income taxes at U.S. statutory rates of 21%, 21% and 35%	$	30.6		$	47.7		$	(3.7	)
State income taxes, net of federal income tax	0.5			2.8			(4.2		)
(Nontaxable earnings) non-deductible losses of foreign affiliates:
Cayman Islands	—			—			(3.5		)
Other	(0.1		)	(0.1		)	(0.3		)
Foreign earnings taxed at rates different from the U.S. statutory rate:
Hong Kong	(8.5		)	(10.8		)	(17.3		)
Other	2.8			(3.1		)	3.5
Adjustments for uncertain tax positions	(1.0		)	(1.4		)	0.4
Change in valuation allowance	(0.2		)	3.3			3.0
Change in state tax rates	(1.5		)	1.9			0.1
Transition tax due to TCJA	—			(0.1		)	58.1
Remeasurement of U.S. deferred taxes due to TCJA	—			—			(52.5		)
Global Intangible Low Tax Income tax	2.1			3.7			—
Foreign Derived Intangible Income tax benefit	(4.4		)	(6.8		)	—
Non-deductible executive compensation	2.0			0.9			0.7
Permanent adjustments related to employee share based compensation	(5.1		)	(3.8		)	(1.9		)
Deferred tax on future cash dividends	0.6			(0.9		)	3.0
Other Permanent adjustments and non-deductible expenses	(0.6		)	(6.7		)	0.6
Other	(0.2		)	0.5			4.1
Income tax provision	$	17.0		$	27.1		$	(9.9	)

Significant components of the Company’s deferred income tax assets and liabilities are as follows:



(In millions)	December 28, 2019			December 29, 2018
Deferred income tax assets:
Accounts receivable and inventory valuation allowances	$	5.7		$	4.9
Deferred compensation accruals	4.0			6.9
Accrued pension expense	25.3			21.6
Stock-based compensation	14.5			16.9
Net operating loss and foreign tax credit carryforwards	17.6			19.2
Book over tax depreciation and amortization	0.5			0.8
Tenant lease expenses	3.6			4.1
Environmental reserve	15.4			5.0
Other	5.1			5.8
Total gross deferred income tax assets	91.7			85.2
Less valuation allowance	(17.6		)	(17.8		)
Net deferred income tax assets	74.1			67.4
Deferred income tax liabilities:
Intangible assets	(157.5		)	(157.3		)
Tax over book depreciation and amortization	(8.6		)	(8.3		)
Other	(4.1		)	(6.6		)
Total deferred income tax liabilities	(170.2		)	(172.2		)
Net deferred income tax liabilities	$	(96.1	)	$	(104.8	)

The valuation allowance for deferred income tax assets as of December 28, 2019 and December 29, 2018 was $17.6 million and $17.8 million, respectively. The net decrease in the total valuation allowance during fiscal 2019 was $0.2 million. The valuation allowance for both years is primarily related to U.S. state and local net operating loss carryforwards as well as a valuation allowance against state deferred tax assets for certain U.S. legal entities, foreign net operating loss carryforwards and tax credit carryforwards in foreign jurisdictions. The ultimate realization of the deferred tax assets depends on the generation of future taxable income in foreign jurisdictions as well as state and local tax jurisdictions. The current year change in the valuation allowance results in a decrease against the state deferred tax assets of $0.5 million, an increase related to state net operating loss carryforward of $1.3 million, and a net decrease relating to the foreign net operating losses and foreign tax credits and other deferred tax assets of $1.0 million.

At December 28, 2019, the Company had foreign net operating loss carryforwards of $27.3 million, which have expirations ranging from 2020 to an unlimited term during which they are available to offset future foreign taxable income. The Company had U.S. state net operating loss carryforwards and Internal Revenue Code section 163(j) interest expense carryforwards of $161.4 million and $10.4 million respectively, which have expirations ranging from 2022 to an unlimited term during which they are available to offset future state taxable income. The Company also had tax credit carryforwards in foreign jurisdictions of $2.9 million, which are available for an unlimited carryforward period to offset future foreign taxes.

The following table summarizes the activity related to the Company’s unrecognized tax benefits:



	Fiscal Year
(In millions)	2019			2018
Unrecognized tax benefits at beginning of the year	$	7.9		$	9.3
Increases related to current year tax positions	1.6			0.8
Decreases related to prior year positions	(1.4		)	(2.0		)
Decreases relating to settlements with taxing authorities	(1.2		)	—
Decrease due to lapse of statute	—			(0.2		)
Unrecognized tax benefits at end of the year	$	6.9		$	7.9

The portion of the unrecognized tax benefits that, if recognized currently, would reduce the annual effective tax rate was $6.5 million and $7.1 million as of December 28, 2019 and December 29, 2018, respectively. The Company recognizes interest and penalties related to unrecognized tax benefits through interest expense and income tax expense, respectively. Interest accrued related to unrecognized tax benefits was $1.5 million and $2.4 million as of December 28, 2019 and December 29, 2018, respectively.

The Company is subject to periodic audits by domestic and foreign tax authorities. Currently, the Company is undergoing routine periodic audits in both domestic and foreign tax jurisdictions. It is reasonably possible that the amounts of unrecognized tax benefits could change in the next 12 months as a result of the audits. However, any payment of tax is not expected to be material to the consolidated financial statements. For the majority of tax jurisdictions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2015.

The Company intends to repatriate cash held in foreign jurisdictions and as such has recorded a deferred tax liability related to additional state taxes and foreign withholding taxes on the future dividends received in the U.S. from the foreign subsidiaries of $1.2 million and $0.6 million for fiscal years 2019 and 2018, respectively. The Company intends to permanently reinvest all non-cash undistributed earnings outside of the U.S. and has, therefore, not established a deferred tax liability on the amount of non-cash foreign undistributed earnings of $272.1 million at December 28, 2019. However, if these non-cash undistributed earnings were repatriated, the Company would be required to accrue and pay applicable U.S. taxes and withholding taxes payable to various countries. It is not practicable to estimate the amount of the deferred tax liability associated with these non-cash unremitted earnings due to the complexity of the hypothetical calculation.

Fair Value Measurements (Tables)

12 Months Ended

Dec. 28, 2019

Fair Value Disclosures [Abstract]

The following table sets forth financial assets and liabilities measured at fair value in the consolidated balance sheets and the respective pricing levels to which the fair value measurements are classified within the fair value hierarchy.



	Fair Value Measurements
	Quoted Prices With Other Observable Inputs (Level 2)
(In millions)	December 28, 2019			December 29, 2018
Financial assets:
Derivatives	$	2.3		$	10.3
Financial liabilities:
Derivatives	$	(6.6	)	$	(8.2	)

Fair Value, by Balance Sheet Grouping [Table Text Block]

The carrying value and the fair value of the Company’s debt are as follows:



(In millions)	December 28, 2019		December 29, 2018
Carrying value	$	798.4	$	570.1
Fair value	817.6		566.8

Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 28, 2019

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations

The Company’s unaudited quarterly results of operations are as follows:



	Fiscal 2019 Quarters Ended
(In millions, except per share data)	March 30, 2019		June 29, 2019		September 28, 2019		December 28, 2019
Revenue	$	523.4	$	568.6	$	574.3	$	607.4
Gross profit	220.2		230.4		243.3		229.9
Net earnings (loss) attributable to Wolverine World Wide, Inc.	40.5		40.2		48.7		(0.9		)
Net earnings (loss) per share:
Basic	$	0.44	$	0.45	$	0.57	$	(0.01	)
Diluted	0.43		0.45		0.57		(0.01		)



	Fiscal 2018 Quarters Ended
(In millions, except per share data)	March 31, 2018		June 30, 2018		September 29, 2018		December 29, 2018
Revenue	$	534.1	$	566.9	$	558.6	$	579.6
Gross profit	227.9		234.2		232.1		227.1
Net earnings attributable to Wolverine World Wide, Inc.	46.7		55.3		58.8		39.3
Net earnings per share:
Basic	$	0.49	$	0.58	$	0.62	$	0.39
Diluted	0.48		0.57		0.60		0.39

Income Taxes - Significant Components of Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Deferred income tax assets:
Accounts receivable and inventory valuation allowances	$ 5.7	$ 4.9
Deferred compensation accruals	4.0	6.9
Accrued pension expense	25.3	21.6
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	14.5	16.9
Net operating loss and foreign tax credit carryforwards	17.6	19.2
Book over tax depreciation and amortization	0.5	0.8
Tenant lease expenses	3.6	4.1
Environmental reserve	15.4	5.0
Other	5.1	5.8
Total gross deferred income tax assets	91.7	85.2
Less valuation allowance	(17.6)	(17.8)
Net deferred income tax assets	74.1	67.4
Deferred income tax liabilities:
Intangible assets	(157.5)	(157.3)
Deferred Tax Liabilities, Deferred Expense	(8.6)	(8.3)
Deferred Tax Liabilities, Other	4.1	6.6
Total deferred income tax liabilities	(170.2)	(172.2)
Total deferred income tax liabilities	$ (96.1)	$ (104.8)

Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($)
Accounting Policies [Line Items]
Weeks in fiscal year	52	52	52
Advertising expense	$ 119.4	$ 120.8	$ 107.1
Prepaid advertising	$ 3.7	$ 1.5
Minimum [Member] \| Building [Member]
Accounting Policies [Line Items]
Depreciable life	14 years
Minimum [Member] \| Leasehold Improvements [Member]
Accounting Policies [Line Items]
Depreciable life	5 years
Minimum [Member] \| Furniture Fixture Equipment [Member]
Accounting Policies [Line Items]
Depreciable life	3 years
Minimum [Member] \| Software [Member]
Accounting Policies [Line Items]
Depreciable life	3 years
Maximum [Member] \| Building [Member]
Accounting Policies [Line Items]
Depreciable life	20 years
Maximum [Member] \| Leasehold Improvements [Member]
Accounting Policies [Line Items]
Depreciable life	15 years
Maximum [Member] \| Furniture Fixture Equipment [Member]
Accounting Policies [Line Items]
Depreciable life	10 years
Maximum [Member] \| Software [Member]
Accounting Policies [Line Items]
Depreciable life	5 years

Retirement Plans (Tables)

12 Months Ended

Dec. 28, 2019

Retirement Benefits [Abstract]

Changes in Company's Assets and Related Obligations for its Pension Plans

The following summarizes the status of and changes in the Company’s assets and related obligations for its pension plans (which include the Company’s defined benefit pension plans and the SERP) for the fiscal years 2019 and 2018:



	Fiscal Year
(In millions)	2019			2018
Change in projected benefit obligations:
Projected benefit obligations at beginning of the year	$	348.8		$	443.4
Service cost pertaining to benefits earned during the year	5.5			6.3
Interest cost on projected benefit obligations	15.2			16.5
Actuarial loss (gain)	45.4			(31.6		)
Benefits paid to plan participants	(13.9		)	(19.2		)
Settlement	—			(66.6		)
Projected benefit obligations at end of the year	$	401.0		$	348.8
Change in fair value of pension assets:
Fair value of pension assets at beginning of the year	$	254.4		$	299.6
Actual return (loss) on plan assets	44.7			(22.6		)
Company contributions - pension	—			60.7
Company contributions - SERP	2.4			2.5
Benefits paid to plan participants	(13.9		)	(19.2		)
Settlement	—			(66.6		)
Fair value of pension assets at end of the year	$	287.6		$	254.4
Funded status	$	(113.4	)	$	(94.4	)
Amounts recognized in the consolidated balance sheets:
Noncurrent assets	$	—		$	1.4
Current liabilities	(3.7		)	(3.8		)
Noncurrent liabilities	(109.7		)	(92.0		)
Net amount recognized	$	(113.4	)	$	(94.4	)
Funded status of pension plans and SERP (supplemental):
Funded status of qualified defined benefit plans and SERP	$	(113.4	)	$	(94.4	)
Nonqualified trust assets (cash surrender value of life insurance) recorded in other assets and intended to satisfy the projected benefit obligation of unfunded SERP obligations	59.6			57.4
Net funded status of pension plans and SERP (supplemental)	$	(53.8	)	$	(37.0	)

Summary of Net Pension and Serp Expense Recognized

The following is a summary of net pension and SERP expense recognized by the Company:



	Fiscal Year
(In millions)	2019			2018			2017
Service cost pertaining to benefits earned during the year	$	5.5		$	6.3		$	7.2
Interest cost on projected benefit obligations	15.2			16.5			17.7
Expected return on pension assets	(17.7		)	(21.5		)	(19.8		)
Net amortization loss	2.6			3.3			9.8
Settlement loss	—			7.2			—
Net pension expense	$	5.6		$	11.8		$	14.9
Less: SERP expense	5.4			5.5			5.5
Qualified defined benefit pension plans expense	$	0.2		$	6.3		$	9.4

Weighted-Average Assumptions used to Determine Benefit Obligations and Net Periodic Benefit Cost

The weighted-average actuarial assumptions used to determine the benefit obligation amounts and the net periodic benefit cost for the Company’s pension and post-retirement plans are as follows:



	Fiscal Year
	2019	2018
Weighted-average assumptions used to determine benefit obligations at fiscal year-end:
Discount rate	3.60%	4.46%
Rate of compensation increase - pension	4.23%	3.82%
Rate of compensation increase - SERP	7.00%	7.00%
Weighted average assumptions used to determine net periodic benefit cost for the years ended:
Discount rate	4.46%	3.80%
Expected long-term rate of return on plan assets	6.75%	7.00%
Rate of compensation increase - pension	3.82%	3.92%
Rate of compensation increase - SERP	7.00%	7.00%

Pension Plan Assets

The Company’s asset allocations by asset category and fair value measurement are as follows:



	December 28, 2019					December 29, 2018
(In millions)	Total			% of Total		Total			% of Total
Equity securities	$	162.2	¹	56.4	%	$	138.2	¹	54.4	%
Fixed income securities	106.2		¹	36.9	%	98.0		¹	38.5	%
Real estate investments	16.9		¹	5.9	%	16.1		¹	6.3	%
Other	2.3		²	0.8	%	2.1		²	0.8	%
Fair value of plan assets	$	287.6		100.0	%	$	254.4		100.0	%


¹	In accordance with ASC 820, Fair Value Measurement (“ASC 820”), certain investments are measured at fair value using the net asset value per share as a practical expedient. These assets have not been classified in the fair value hierarchy.

In accordance with ASC 820, investments have been measured using valuation techniques in which one or more significant inputs are unobservable (Level 3). See Note 16 for additional information.

Expected Benefit Payments

Expected benefit payments for the fiscal years subsequent to December 28, 2019 are as follows:



(In millions)	2020		2021		2022		2023		2024		2025-2029
Expected benefit payments	$	15.7	$	16.3	$	17.0	$	17.7	$	18.5	$	102.6

Goodwill and Other Intangibles Amortizable Intangibles (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	$ 130.6	$ 115.1
Accumulated amortization	52.8	43.2
Amortizable intangibles, net	77.8	71.9
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	113.3	100.5
Accumulated amortization	38.8	31.7
Amortizable intangibles, net	$ 74.5	$ 68.8
Finite-Lived Intangible Assets, Remaining Amortization Period	13 years	14 years
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying value	$ 17.3	$ 14.6
Accumulated amortization	14.0	11.5
Amortizable intangibles, net	$ 3.3	$ 3.1
Finite-Lived Intangible Assets, Remaining Amortization Period	3 years	3 years

Property, Plant and Equipment Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Property, Plant and Equipment [Abstract]
Land	$ 3.9	$ 3.9
Buildings and leasehold improvements	123.2	108.8
Furniture, fixtures and equipment	136.8	162.5
Software	61.1	106.6
Gross cost	325.0	381.8
Less: accumulated depreciation	184.0	250.9
Property, plant and equipment, net	$ 141.0	$ 130.9

Litigation and Contingencies Environmental Remediation (Details) $ in Millions	12 Months Ended
	Dec. 28, 2019 USD ($)
Environmental Remediation Obligations [Abstract]
Environmental Cost Recovery	$ 55.0
Environmental remediation accrual, current	41.5
Environmental remediation accrual, noncurrent	$ 82.9
Site Contingency, Time Frame of Disbursements	P25Y

Property, Plant and Equipment

12 Months Ended

Dec. 28, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consisted of the following:



(In millions)	December 28, 2019		December 29, 2018
Land	$	3.9	$	3.9
Buildings and leasehold improvements	123.2		108.8
Furniture, fixtures and equipment	136.8		162.5
Software	61.1		106.6
Gross cost	325.0		381.8
Less: accumulated depreciation	184.0		250.9
Property, plant and equipment, net	$	141.0	$	130.9

Depreciation expense was $24.1 million, $25.3 million and $27.8 million for fiscal years 2019, 2018 and 2017, respectively.

Stock-Based Compensation Summary of Nonvested Restricted Shares Issued Under Stock Award Plans (Detail) - $ / shares	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Restricted Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested shares, Beginning balance	1,920,373	2,025,072	1,947,378
Shares, granted	554,092	609,276	762,078
Shares, vested	(681,938)	(560,263)	(445,939)
Shares, forfeited	(173,611)	(153,712)	(238,445)
Nonvested shares, Ending balance	1,618,916	1,920,373	2,025,072
Weighted-Average Grant Date Fair Value, Beginning balance	$ 24.38	$ 21.70	$ 21.24
Weighted Average Grant Date Fair Value, granted	34.73	31.81	23.06
Weighted-Average Grant Date Fair Value, vested	24.63	22.93	22.03
Weighted-Average Grant Date Fair Value, forfeited	28.47	23.81	21.66
Weighted-Average Grant Date Fair Value, Ending balance	$ 27.36	$ 24.38	$ 21.70
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonvested shares, Beginning balance	1,631,018	1,690,668	1,730,886
Shares, granted	370,830	384,657	511,722
Shares, vested	(654,021)	(229,023)	(173,894)
Shares, forfeited	(220,725)	(215,284)	(378,046)
Nonvested shares, Ending balance	1,127,102	1,631,018	1,690,668
Weighted-Average Grant Date Fair Value, Beginning balance	$ 23.42	$ 21.54	$ 21.86
Weighted Average Grant Date Fair Value, granted	37.10	35.10	25.14
Weighted-Average Grant Date Fair Value, vested	17.46	26.64	27.01
Weighted-Average Grant Date Fair Value, forfeited	19.74	26.18	25.04
Weighted-Average Grant Date Fair Value, Ending balance	$ 31.94	$ 23.42	$ 21.54

Quarterly Results of Operations (Unaudited) - Company's Unaudited Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 607.4	$ 574.3	$ 568.6	$ 523.4	$ 579.6	$ 558.6	$ 566.9	$ 534.1	$ 2,273.7	$ 2,239.2	$ 2,350.0
Gross profit	229.9	243.3	230.4	220.2	227.1	232.1	234.2	227.9	923.8	921.3	914.4
Net earnings (loss) attributable to Wolverine World Wide, Inc.	$ (0.9)	$ 48.7	$ 40.2	$ 40.5	$ 39.3	$ 58.8	$ 55.3	$ 46.7	$ 128.5	$ 200.1	$ 0.3
Net earnings (loss) per share:
Earnings per share - Basic	$ (0.01)	$ 0.57	$ 0.45	$ 0.44	$ 0.39	$ 0.62	$ 0.58	$ 0.49	$ 1.48	$ 2.07	$ 0
Earnings per share - Diluted	$ (0.01)	$ 0.57	$ 0.45	$ 0.43	$ 0.39	$ 0.60	$ 0.57	$ 0.48	$ 1.44	$ 2.05	$ 0

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Geographic Components of Earnings Before Income Taxes

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Business Segments - Business Segment Information (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Segment Reporting Information [Line Items]
Document Period End Date									Dec. 28, 2019
Revenue	$ 607.4	$ 574.3	$ 568.6	$ 523.4	$ 579.6	$ 558.6	$ 566.9	$ 534.1	$ 2,273.7	$ 2,239.2	$ 2,350.0
Operating profit (loss)									171.0	251.9	31.6
Depreciation and amortization expense									32.7	31.5	37.2
Capital expenditures									34.4	21.7	32.4
Total assets	2,480.0				2,183.1				2,480.0	2,183.1
Goodwill	438.9				424.4				438.9	424.4	429.8
Wolverine Michigan Group [Member]
Segment Reporting Information [Line Items]
Revenue									1,299.7	1,272.2	1,267.8
Operating profit (loss)									244.8	257.6	243.7
Depreciation and amortization expense									2.4	2.7	2.9
Capital expenditures									2.2	3.1	0.5
Total assets	773.8				626.8				773.8	626.8
Goodwill	144.4				143.8				144.4	143.8
Wolverine Boston Group [Member]
Segment Reporting Information [Line Items]
Revenue									910.9	895.5	988.8
Operating profit (loss)									153.8	157.5	153.6
Depreciation and amortization expense									3.3	3.3	3.7
Capital expenditures									5.7	1.2	1.6
Total assets	1,354.8				1,282.2				1,354.8	1,282.2
Goodwill	294.5				280.6				294.5	280.6
Other Segments [Member]
Segment Reporting Information [Line Items]
Revenue									63.1	71.5	93.4
Operating profit (loss)									2.9	3.1	5.2
Depreciation and amortization expense									2.4	3.1	3.5
Capital expenditures									2.2	1.8	1.8
Total assets	38.4				50.0				38.4	50.0
Corporate [Member]
Segment Reporting Information [Line Items]
Operating profit (loss)									(230.5)	(166.3)	(370.9)
Depreciation and amortization expense									24.6	22.4	27.1
Capital expenditures									24.3	15.6	$ 28.5
Total assets	$ 313.0				$ 224.1				$ 313.0	$ 224.1

Income Taxes (Tables)

12 Months Ended

Dec. 28, 2019

Income Tax Disclosure [Abstract]

The geographic components of earnings (loss) before income taxes are as follows:



	Fiscal Year
(In millions)	2019		2018		2017
United States	$	79.3	$	159.2	$	(78.2	)
Foreign	66.6		68.2		67.6
Earnings (loss) before income taxes	$	145.9	$	227.4	$	(10.6	)

Provisions for Income Taxes

The provisions for income tax expense (benefit) consist of the following:



	Fiscal Year
(In millions)	2019			2018		2017
Current expense:
Federal	$	10.6		$	6.7	$	48.1
State	0.5			2.4		1.9
Foreign	12.5			10.9		14.0
Deferred expense (credit):
Federal	(5.8		)	2.1		(72.0		)
State	(2.0		)	3.3		(0.2		)
Foreign	1.2			1.7		(1.7		)
Income tax provision	$	17.0		$	27.1	$	(9.9	)

Reconciliation of Income Tax Expense, Net of Federal Income Tax Rate

A reconciliation of the Company’s total income tax expense and the amount computed by applying the statutory federal income tax rate to earnings before income taxes is as follows:



	Fiscal Year
(In millions)	2019			2018			2017
Income taxes at U.S. statutory rates of 21%, 21% and 35%	$	30.6		$	47.7		$	(3.7	)
State income taxes, net of federal income tax	0.5			2.8			(4.2		)
(Nontaxable earnings) non-deductible losses of foreign affiliates:
Cayman Islands	—			—			(3.5		)
Other	(0.1		)	(0.1		)	(0.3		)
Foreign earnings taxed at rates different from the U.S. statutory rate:
Hong Kong	(8.5		)	(10.8		)	(17.3		)
Other	2.8			(3.1		)	3.5
Adjustments for uncertain tax positions	(1.0		)	(1.4		)	0.4
Change in valuation allowance	(0.2		)	3.3			3.0
Change in state tax rates	(1.5		)	1.9			0.1
Transition tax due to TCJA	—			(0.1		)	58.1
Remeasurement of U.S. deferred taxes due to TCJA	—			—			(52.5		)
Global Intangible Low Tax Income tax	2.1			3.7			—
Foreign Derived Intangible Income tax benefit	(4.4		)	(6.8		)	—
Non-deductible executive compensation	2.0			0.9			0.7
Permanent adjustments related to employee share based compensation	(5.1		)	(3.8		)	(1.9		)
Deferred tax on future cash dividends	0.6			(0.9		)	3.0
Other Permanent adjustments and non-deductible expenses	(0.6		)	(6.7		)	0.6
Other	(0.2		)	0.5			4.1
Income tax provision	$	17.0		$	27.1		$	(9.9	)

Significant Components of Deferred Income Tax Assets and Liabilities

Significant components of the Company’s deferred income tax assets and liabilities are as follows:



(In millions)	December 28, 2019			December 29, 2018
Deferred income tax assets:
Accounts receivable and inventory valuation allowances	$	5.7		$	4.9
Deferred compensation accruals	4.0			6.9
Accrued pension expense	25.3			21.6
Stock-based compensation	14.5			16.9
Net operating loss and foreign tax credit carryforwards	17.6			19.2
Book over tax depreciation and amortization	0.5			0.8
Tenant lease expenses	3.6			4.1
Environmental reserve	15.4			5.0
Other	5.1			5.8
Total gross deferred income tax assets	91.7			85.2
Less valuation allowance	(17.6		)	(17.8		)
Net deferred income tax assets	74.1			67.4
Deferred income tax liabilities:
Intangible assets	(157.5		)	(157.3		)
Tax over book depreciation and amortization	(8.6		)	(8.3		)
Other	(4.1		)	(6.6		)
Total deferred income tax liabilities	(170.2		)	(172.2		)
Net deferred income tax liabilities	$	(96.1	)	$	(104.8	)

Unrecognized Tax Benefits

The following table summarizes the activity related to the Company’s unrecognized tax benefits:



	Fiscal Year
(In millions)	2019			2018
Unrecognized tax benefits at beginning of the year	$	7.9		$	9.3
Increases related to current year tax positions	1.6			0.8
Decreases related to prior year positions	(1.4		)	(2.0		)
Decreases relating to settlements with taxing authorities	(1.2		)	—
Decrease due to lapse of statute	—			(0.2		)
Unrecognized tax benefits at end of the year	$	6.9		$	7.9

Retirement Plans - Changes in Company's Assets and Related Obligations for its Pension Plans (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Change in projected benefit obligations:
Projected benefit obligations at beginning of the year	$ 348.8	$ 443.4
Interest cost on projected benefit obligations	15.2	16.5	$ 17.7
Actuarial loss (gain)	45.4	(31.6)
Benefits paid to plan participants	(13.9)	(19.2)
Service cost pertaining to benefits earned during the year	5.5	6.3	7.2
Settlement	0.0	(66.6)
Projected benefit obligations at end of the year	401.0	348.8	443.4
Change in fair value of pension assets:
Fair value of pension assets at beginning of the year	254.4	299.6
Actual return (loss) on plan assets	44.7	(22.6)
Benefits paid to plan participants	(13.9)	(19.2)
Settlement	0.0	(66.6)
Fair value of pension assets at end of the year	287.6	254.4	299.6
Funded status	(113.4)	(94.4)
Amounts recognized in the consolidated balance sheets:
Noncurrent assets	0.0	1.4
Current liabilities	(3.7)	(3.8)
Noncurrent liabilities	(109.7)	(92.0)
Net amount recognized	(113.4)	(94.4)
Funded status of pension plans and SERP (supplemental):
Funded status of qualified defined benefit plans and SERP	(113.4)	(94.4)
Nonqualified trust assets	66.8	64.4
Net funded status of pension plans and SERP (supplemental)	(53.8)	(37.0)
Settlement loss	0.0	7.2	$ 0.0
Pension [Member]
Change in fair value of pension assets:
Company contributions	0.0	60.7
SERP [Member]
Change in fair value of pension assets:
Company contributions	2.4	2.5
Funded status of pension plans and SERP (supplemental):
Nonqualified trust assets	$ 59.6	$ 57.4

Income Taxes - Reconciliation of Income Tax Expense, Net of Federal Income Tax Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Income Taxes [Line Items]
Income taxes at U.S. statutory rates of 21%, 21% and 35%	$ 30.6	$ 47.7	$ (3.7)
State income taxes, net of federal income tax	0.5	2.8	(4.2)
Adjustments for uncertain tax positions	(1.0)	(1.4)	0.4
Change in valuation allowance	(0.2)	3.3	3.0
Change in state tax rates	(1.5)	1.9	0.1
Effective Income Tax Rate Reconciliation Transition Tax Due To TCJA	0.0	(0.1)	58.1
Effective Income Tax Rate Reconciliation Remeasurement of Deferred Taxes Due To TCJA	0.0	0.0	(52.5)
Global Intangible Low Tax Income Tax	2.1	3.7	0.0
Foreign Derived Intangible Income Tax Credit	(4.4)	(6.8)	0.0
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	2.0	0.9	0.7
Tax Adjustments, Settlements, and Unusual Provisions	(5.1)	(3.8)	(1.9)
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	4.8	6.4	8.6
Effective Income Tax Rate Reconciliation Deferred Tax On Future Dividends Due To TCJA	0.6	(0.9)	3.0
Other Permanent adjustments and non-deductible expenses	(0.6)	(6.7)	0.6
Other	(0.2)	0.5	4.1
Total provision for income taxes	17.0	27.1	(9.9)
CAYMAN ISLANDS
Income Taxes [Line Items]
(Nontaxable earnings) non-deductible losses of foreign affiliates:	0.0	0.0	(3.5)
HONG KONG
Income Taxes [Line Items]
Foreign earnings taxed at rates different from the U.S. statutory rate:	(8.5)	(10.8)	(17.3)
OTHER JURISDICTIONS
Income Taxes [Line Items]
(Nontaxable earnings) non-deductible losses of foreign affiliates:	(0.1)	(0.1)	(0.3)
Foreign earnings taxed at rates different from the U.S. statutory rate:	$ 2.8	$ (3.1)	$ 3.5

Goodwill and Other Intangibles (Notes)

12 Months Ended

Dec. 28, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

GOODWILL AND OTHER INTANGIBLE ASSETS

The changes in the carrying amount of goodwill are as follows:



	Fiscal Year
(In millions)	2019		2018
Goodwill balance at beginning of the year	$	424.4	$	429.8
Acquisition of a business (see Note 19)	12.0		—
Foreign currency translation effects	2.5		(5.4		)
Goodwill balance at end of the year	$	438.9	$	424.4

The Company did not recognize any impairment charges during fiscal years 2019, 2018 and 2017 for goodwill. The annual impairment testing indicated, for all reporting units tested quantitatively, that their fair values exceeded their respective carrying values. For the reporting units that the Company elected to test qualitatively, as is permitted under ASU 2011-08, Intangibles-Goodwill and Other (Topic 350): Testing Goodwill for Impairment, the Company concluded it to be more likely than not that their estimated fair values are greater than their respective carrying values.

The Company’s indefinite-lived intangible assets, which comprise trade names and trademarks, totaled $604.5 million as of December 28, 2019 and December 29, 2018. No impairment charges were recognized for the Company's intangible assets during fiscal years 2019 and 2018. In the fourth quarter of fiscal 2017, as a result of its annual impairment testing, the Company recognized a $68.6 million impairment charge for the Sperry^® trade name. The risk of future impairment for the Sperry^® trade name is dependent on key assumptions used in the determination of the trade name's fair value, such as revenue growth, operating profit and the discount rate. The carrying value of the Company’s Sperry^® trade name indefinite-lived intangible asset was $518.2 as of December 28, 2019.

Amortizable intangible assets are amortized using the straight-line method over their estimated useful lives. The combined gross carrying values and accumulated amortization for these amortizable intangibles are as follows:



	December 28, 2019
(In millions)	Gross carrying value		Accumulated amortization		Net		Average remaining life (years)
Customer relationships	$	113.3	$	38.8	$	74.5	13
Other	17.3		14.0		3.3		3
Total	$	130.6	$	52.8	$	77.8



	December 29, 2018
(In millions)	Gross carrying value		Accumulated amortization		Net		Average remaining life (years)
Customer relationships	$	100.5	$	31.7	$	68.8	14
Other	14.6		11.5		3.1		3
Total	$	115.1	$	43.2	$	71.9

Amortization expense for these amortizable intangible assets was $8.6 million, $6.2 million and $9.4 million for fiscal years 2019, 2018 and 2017, respectively. Estimated aggregate amortization expense for such intangibles for the fiscal years subsequent to December 28, 2019 is as follows:



(In millions)	2020		2021		2022		2023		2024
Amortization expense	$	6.9	$	6.6	$	6.4	$	6.1	$	5.9

Retirement Plans - Summary of Net Pension and SERP Expense Recognized (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Service cost pertaining to benefits earned during the year	$ 5.5	$ 6.3	$ 7.2
Interest cost on projected benefit obligations	15.2	16.5	17.7
Expected return on pension assets	(17.7)	(21.5)	(19.8)
Net amortization loss	2.6	3.3	9.8
Settlement loss	0.0	7.2	0.0
Net pension expense	5.6	11.8	14.9
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Net pension expense	0.2	6.3	9.4
SERP [Member]
Defined Benefit Plan Disclosure [Line Items]
Net pension expense	$ 5.4	$ 5.5	$ 5.5

Financial Instruments and Risk Management (Financial Assets and Liabilities Measured at Fair Value) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Document Period End Date	Dec. 28, 2019
Designated as Hedging Instrument [Member] \| Interest rate swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap asset	$ 0.0	$ 1.6
Interest rate swap liability	(1.8)	0.0
Designated as Hedging Instrument [Member] \| Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts asset	2.3	8.7
Foreign exchange contracts liability	(1.8)	0.0
Designated as Hedging Instrument [Member] \| Cross Currency Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Liabilities, Fair Value	$ (3.0)	$ (8.2)

Stock-Based Compensation

12 Months Ended

Dec. 28, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

STOCK-BASED COMPENSATION

The Company accounts for stock-based compensation in accordance with the fair value recognition provisions of ASC Topic 718, Compensation – Stock Compensation. The Company recognized compensation expense of $24.5 million, $31.2 million and $25.4 million and related income tax benefits of $4.8 million, $6.4 million and $8.6 million for grants under its stock-based compensation plans in the statements of operations for fiscal years 2019, 2018 and 2017, respectively. The Company generally grants restricted stock or units (“Restricted Awards”), performance-based restricted stock or units (“Performance Awards”) and stock options under its stock-based compensation plans.

As of December 28, 2019, the Company had 5,669,643 stock incentive units (stock options, stock appreciation rights, restricted stock, restricted stock units and common stock) available for issuance under the Stock Incentive Plan of 2016, as amended and restated ("Stock Plan"). Each stock option or stock appreciation right granted counts as 1.0 stock incentive unit. Stock options granted under the Stock Plan have an exercise price equal to the fair market value of the underlying stock on the grant date, expire no later than ten years from the grant date and generally vest over three years. All other awards granted, including Restricted Awards and Performance Awards, count as 2.6 stock incentive units for each share, restricted share or restricted stock unit granted. Restricted Awards issued under the Stock Plan are subject to certain restrictions, including a prohibition against any sale, transfer or other disposition by the officer or employee during the vesting period (except for certain transfers for estate planning purposes for certain officers), and a requirement to forfeit all or a certain portion of the award upon certain terminations of employment.

These restrictions typically lapse over a three- to four-year period from the date of the award. The Company has elected to recognize expense for these stock-based incentive plans ratably over the vesting term on a straight-line basis. Certain option and restricted awards provide for accelerated vesting under various scenarios, including retirement, death and disability, and upon a change in control of the Company. Awards issued to employees that meet the specified retirement age and service requirements are vested upon the employee's retirement in accordance with plan provisions and the applicable award agreements issued under the Stock Plan. The Company issues shares to plan participants upon exercise or vesting of stock-based incentive awards from either authorized, but unissued shares or treasury shares.

The Board of Directors awards an annual grant of Performance Awards to certain plan participants. The number of Performance Awards that will be earned (and eligible to vest) during the performance period will depend on the Company’s level of success in achieving two specifically identified performance targets. Any portion of the Performance Awards that are not earned by the end of the three-year measurement period will be forfeited. The final determination of the number of Performance Awards to be issued in respect to an award is determined by the Compensation Committee of the Company’s Board of Directors.

Restricted Awards and Performance Awards

A summary of the unvested Restricted Awards and Performance Awards is as follows:



	Restricted Awards		Weighted- Average Grant Date Fair Value		Performance Awards		Weighted- Average Grant Date Fair Value
Unvested at December 31, 2016	1,947,378		$	21.24	1,730,886		$	21.86
Granted	762,078		23.06		511,722		25.14
Vested	(445,939	)	22.03		(173,894	)	27.01
Forfeited	(238,445	)	21.66		(378,046	)	25.04
Unvested at December 30, 2017	2,025,072		$	21.70	1,690,668		$	21.54
Granted	609,276		31.81		384,657		35.10
Vested	(560,263	)	22.93		(229,023	)	26.64
Forfeited	(153,712	)	23.81		(215,284	)	26.18
Unvested at December 29, 2018	1,920,373		$	24.38	1,631,018		$	23.42
Granted	554,092		34.73		370,830		37.10
Vested	(681,938	)	24.63		(654,021	)	17.46
Forfeited	(173,611	)	28.47		(220,725	)	19.74
Unvested at December 28, 2019	1,618,916		$	27.36	1,127,102		$	31.94

As of December 28, 2019, there was $19.9 million of unrecognized compensation expense related to unvested Restricted Awards, which is expected to be recognized over a weighted-average period of 1.5 years. The total fair value of Restricted Awards vested during the year ended December 28, 2019 was $23.7 million. As of December 29, 2018, there was $20.2 million of unrecognized compensation expense related to unvested Restricted Awards, which was expected to be recognized over a weighted-average period of 1.6 years. The total fair value of Restricted Awards vested during the year ended December 29, 2018 was $17.4 million. As of December 30, 2017, there was $18.3 million of unrecognized compensation expense related to unvested Restricted Awards, which was expected to be recognized over a weighted-average period of 1.8 years. The total fair value of Restricted Awards vested during the year ended December 30, 2017 was $10.6 million.

As of December 28, 2019, there was $4.5 million of unrecognized compensation expense related to unvested Performance Awards, which is expected to be recognized over a weighted-average period of 1.1 years. The total fair value of Performance Awards vested during the year ended December 28, 2019 was $22.8 million. As of December 29, 2018, there was $19.0 million of unrecognized compensation expense related to unvested Performance Awards, which was expected to be recognized over a weighted-average period of 1.7 years. The total fair value of Performance Awards vested during the year ended December 29, 2018 was $7.3 million. As of December 30, 2017, there was $16.9 million of unrecognized compensation expense related to unvested Performance Awards, which was expected to be recognized over a weighted-average period of 1.9 years. The total fair value of Performance Awards vested during the year ended December 30, 2017 was $4.0 million.

Stock Options

The Company estimated the fair value of employee stock options on the date of grant using the Black-Scholes-Merton formula. The estimated weighted-average fair value for each option granted was $9.07, $8.20 and $5.50 per share for fiscal years 2019, 2018 and 2017, respectively, with the following weighted-average assumptions.



	Fiscal Year
	2019		2018		2017
Expected market price volatility ⁽¹⁾	29.6	%	29.6	%	29.3	%
Risk-free interest rate ⁽²⁾	2.5	%	2.5	%	1.7	%
Dividend yield ⁽³⁾	1.0	%	0.8	%	1.0	%
Expected term ⁽⁴⁾	4 years		4 years		4 years


⁽¹⁾	Based on historical volatility of the Company’s common stock. The expected volatility is based on the daily percentage change in the price of the stock over the four years prior to the grant.


⁽²⁾	Represents the U.S. Treasury yield curve in effect for the expected term of the option at the time of grant.


⁽³⁾	Represents the Company’s estimated cash dividend yield for the expected term.


⁽⁴⁾	Represents the period of time that options granted are expected to be outstanding. As part of the determination of the expected term, the Company concluded that all employee groups exhibit similar exercise and post-vesting termination behavior.

A summary of the stock option transactions is as follows:



	Shares Under Option		Weighted-Average Exercise Price		Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (In millions)
Outstanding at December 31, 2016	7,493,662		$	19.55	6.4	$	28.7
Granted	93,274		23.85
Exercised	(1,267,269	)	17.15
Canceled	(230,003	)	21.37
Outstanding at December 30, 2017	6,089,664		$	20.05	5.8	$	72.1
Granted	28,171		31.85
Exercised	(1,359,387	)	17.69
Canceled	(56,446	)	17.12
Outstanding at December 29, 2018	4,702,002		$	20.83	5.2	$	54.5
Granted	25,471		34.81
Exercised	(681,389	)	17.87
Canceled	(12,977	)	23.97
Outstanding at December 28, 2019	4,033,107		$	21.41	4.4	$	49.8
Unvested at December 28, 2019	(44,250	)
Exercisable at December 28, 2019	3,988,857		$	21.27	4.4	$	49.7

The total pretax intrinsic value of stock options exercised during fiscal years 2019, 2018 and 2017 was $10.7 million, $21.2 million and $12.5 million, respectively. As of December 28, 2019, there was $0.2 million of unrecognized compensation expense related to stock option grants expected to be recognized over a weighted-average period of 1.4 years. As of December 29, 2018 and December 30, 2017, there was $0.4 million and $1.8 million, respectively, of unrecognized compensation expense related to stock option awards expected to be recognized over a weighted-average period of 0.8 years and 1.0 years, respectively.

The aggregate intrinsic value in the preceding table represents the total pretax intrinsic value, based on the Company’s closing stock price as of each fiscal year end, which would have been received by the option holders had all option holders exercised options, where the market price of the Company's stock was above the strike price ("in-the-money"), as of that date. The total number of in-the-money options exercisable as of December 28, 2019, based on the Company’s closing stock price of $33.74 per share, was 3,974,757 and the weighted-average exercise price was $21.29 per share. As of December 29, 2018, 4,048,842 outstanding options were exercisable and in-the-money, with a weighted-average exercise price of $21.09 per share.

Retirement Plans - Expected Benefit Payments (Detail) $ in Millions	Dec. 28, 2019 USD ($)
Retirement Benefits [Abstract]
2020	$ 15.7
2021	16.3
2022	17.0
2023	17.7
2024	18.5
2025-2028	$ 102.6

Accounts Receivable (Notes)

12 Months Ended

Dec. 28, 2019

Accounts Receivable [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

ACCOUNTS RECEIVABLE

The Company has an agreement with a financial institution to sell selected trade accounts receivable on a recurring, nonrecourse basis that expires in the fourth quarter of fiscal 2020. Under the agreement, up to $150.0 million of accounts receivable may be sold to the financial institution and remain outstanding at any point in time. After the sale, the Company does not retain any interests in the accounts receivable and removes them from its consolidated balance sheet, but continues to service and collect the outstanding accounts receivable on behalf of the financial institution. The Company recognizes a servicing asset or servicing liability, initially measured at fair value, each time it undertakes an obligation to service the accounts receivable under the agreement. The fair value of this obligation resulted in a nominal servicing liability for all periods presented. For receivables sold under the agreement, 90% of the stated amount is paid for in cash to the Company at the time of sale, with the remainder paid to the Company at the completion of the collection process. The following is a summary of the stated amount of accounts receivable that was sold as well as fees charged by the financial institution.



	Fiscal Year
(In millions)	2019		2018		2017
Accounts receivable sold	$	42.7	$	264.3	$	558.3
Fees charged	0.2		1.3		2.1

The fees are recorded in the other expense (income), net line item on the consolidated statements of operations. Net proceeds of this program are classified in operating activities in the consolidated statements of cash flows. This program reduced the Company's accounts receivable by $33.9 million and $0 as of December 28, 2019 and December 29, 2018, respectively.

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

+ References + Details

Leases Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Leases [Abstract]
Operating Leases, Rent Expense, Sublease Rentals		$ 2.8	$ 1.9
Operating Lease, Weighted Average Remaining Lease Term	10 years 1 month 6 days
Operating Lease, Weighted Average Discount Rate, Percent	5.20%
LesseeOperatingLeaseNotYetCommencedValue	$ 4.8
Operating Lease, Payments	33.2
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	26.8
Finance Lease, Liability, Payments, Due	$ 0.3
Finance Lease, Weighted Average Remaining Lease Term	2 years 1 month 6 days
Operating Leases, Rent Expense		$ 32.0	$ 39.9

Business Segments - Company's Long-Lived Assets (Primarily Property, Plant and Equipment) (Detail) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Segment Reporting Information [Line Items]
Long-lived assets	$ 301.8	$ 130.9	$ 136.7
United States [Member]
Segment Reporting Information [Line Items]
Long-lived assets	247.2	117.1	122.4
Foreign [Member]
Segment Reporting Information [Line Items]
Long-lived assets	$ 54.6	$ 13.8	$ 14.3

Divestitures (Tables)

12 Months Ended

Dec. 28, 2019

Stride Rite [Member]

Disposal Groups, Including Discontinued Operations [Table Text Block]

The assets and liabilities sold, which were reported in the Wolverine Boston Group, are as follows:



(In millions)	Book Value
Inventory	$	17.1
Prepaid expenses and other current assets	1.4
Other accrued liabilities	(1.8		)
Total assets and liabilities sold	$	16.7

Sebago [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Disposal Groups, Including Discontinued Operations [Table Text Block]

The assets sold, which were reported in the Wolverine Michigan Group, are as follows:



(In millions)	Book Value
Indefinite-lived intangibles	5.4
Amortizable intangibles	0.2
Total assets sold	$	5.6

Department of Defense Contract Business [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Disposal Groups, Including Discontinued Operations [Table Text Block]

The assets sold, which were reported in the Wolverine Michigan Group and Other segments, are as follows:



(In millions)	Book Value
Inventory	$	5.6
Prepaid expenses and other current assets	0.5
Property, plant and equipment	3.0
Total assets sold	$	9.1

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

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Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts Receivable (Tables)

12 Months Ended

Dec. 28, 2019

Accounts Receivable [Abstract]

The following is a summary of the stated amount of accounts receivable that was sold as well as fees charged by the financial institution.



	Fiscal Year
(In millions)	2019		2018		2017
Accounts receivable sold	$	42.7	$	264.3	$	558.3
Fees charged	0.2		1.3		2.1

Litigation and Contingencies Environmental Remediation Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Accrual for Environmental Loss Contingencies [Roll Forward]
Remediation liability at beginning of the year	$ 22.6	$ 31.1
Changes in estimate	112.9	4.8
Amounts paid	(11.1)	(13.3)
Remediation liability at the end of the year	$ 124.4	$ 22.6

Leases (Policies)	12 Months Ended
Leases (Policies)	Dec. 28, 2019
Leases [Abstract]
Lessee	The Company’s leases consist primarily of corporate offices, retail stores, distribution centers, showrooms, vehicles and office equipment. The Company leases assets in the normal course of business to meet its current and future needs while providing flexibility to its operations. The Company enters into contracts with third parties to lease specifically identified assets. Most of the Company’s leases have contractually specified renewal periods. Most retail store leases have early termination clauses that the Company can elect if stipulated sales amounts are not achieved. The Company determines the lease term for each lease based on the terms of each contract and factors in renewal and early termination options if such options are reasonably certain to be exercised.
Separation of Lease and Nonlease Components [Policy Text Block]	Under FASB ASC Topic 842, Leases, the Company has elected the practical expedient to account for lease components and nonlease components associated with individual leases as a single lease component for all of its leases. In addition, the Company has elected to account for multiple lease components as a single lease component.

Litigation and Contingencies - Minimum Royalty and Advertising Obligations Due Under Terms of Certain Licenses Held by Company (Detail) $ in Millions	Dec. 28, 2019 USD ($)
Advertising [Member]
Schedule Of Commitments And Contingencies [Line Items]
2020	$ 3.2
2021	3.3
2022	3.4
2023	3.5
2024	3.6
Thereafter	0.0
Royalties [Member]
Schedule Of Commitments And Contingencies [Line Items]
2020	1.5
2021	1.7
2022	1.8
2023	0.0
2024	0.0
Thereafter	$ 0.0

Stock-Based Compensation Stock Option Assumptions (Details) - $ / shares

12 Months Ended

Dec. 28, 2019

Dec. 29, 2018

Dec. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Weighted-average fair values for options granted

$ 9.07

$ 8.20

$ 5.50

Expected market price volatility

^[1]

29.60%

29.30%

Risk-free interest rate

^[2]

2.50%

1.70%

Dividend yield

^[3]

1.00%

0.80%

1.00%

Expected term

^[4]

4 years

[1]	Based on historical volatility of the Company’s common stock. The expected volatility is based on the daily percentage change in the price of the stock over the four years prior to the grant.
[2]	Represents the U.S. Treasury yield curve in effect for the expected term of the option at the time of grant
[3]	Represents the Company’s estimated cash dividend yield for the expected term.
[4]	Represents the period of time that options granted are expected to be outstanding. As part of the determination of the expected term, the Company concluded that all employee groups exhibit similar exercise and post-vesting termination behavior.

Fair Value Measurements Fair Value Disclosures (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Fair Value Disclosures [Abstract]
Long-term Debt	$ 798.4	$ 570.1
Long-term Debt, Fair Value	$ 817.6	$ 566.8

Accumulated Other Comprehensive Income Other Details (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Statement of Other Comprehensive Income [Abstract]
Settlement loss	$ 0.0	$ 7.2	$ 0.0

Debt (Tables)

12 Months Ended

Dec. 28, 2019

Debt Disclosure [Abstract]

Schedule of Borrowings

Total debt consists of the following obligations:



(In millions)	December 28, 2019			December 29, 2018
Term Loan A, due December 6, 2023	$	192.5		$	200.0
Senior Notes, 5.000% interest, due September 1, 2026	250.0			250.0
Borrowings under revolving credit agreements	360.0			125.0
Capital lease obligation	—			0.4
Unamortized deferred financing costs	(4.1		)	(4.9		)
Total debt	$	798.4		$	570.5

Schedule of Annual Maturities of Long-Term Debt

Annual maturities of debt, including capital leases, for the fiscal years subsequent to December 28, 2019 are as follows:



(In millions)	2020		2021		2022		2023		2024		Thereafter
Annual maturities of debt	$	372.5	$	10.0	$	10.0	$	160.0	$	—	$	250.0

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Cover Page - USD ($)	12 Months Ended
Cover Page - USD ($)	Dec. 28, 2019	Feb. 14, 2020	Jun. 28, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 28, 2019
Document Transition Report	false
Entity File Number	001-06024
Entity Registrant Name	WOLVERINE WORLD WIDE, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	38-1185150
Entity Address, Address Line One	9341 Courtland Drive N.E.
Entity Address, City or Town	Rockford
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	49351
City Area Code	(616)
Local Phone Number	866-5500
Title of 12(b) Security	Common Stock, $1 Par Value
Trading Symbol	WWW
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 2,285,790,560
Entity Common Stock, Shares Outstanding		81,929,364
Current Fiscal Year End Date	--12-28
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Central Index Key	0000110471
Amendment Flag	false

Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 28, 2019

Schedule II - Valuation and Qualifying Accounts

Wolverine World Wide, Inc. and Subsidiaries



Column A	Column B		Column C			Column D			Column E
			Additions
(In millions)	Balance at Beginning of Period		(1) Charged to Costs and Expenses		(2) Charged to Other Accounts (Describe)	Deductions (Describe)			Balance at End of Period
Fiscal Year Ended December 28, 2019
Deducted from asset accounts:
Allowance for doubtful accounts	$	9.5	$	16.3	—	$	13.7	(A)	$	12.1
Allowance for sales returns	13.6		50.2		—	52.4		(B)	11.4
Allowance for cash discounts	3.5		4.1		—	4.4		(C)	3.2
Inventory valuation allowances	8.3		6.9		—	7.9		(D)	7.3
Total	$	34.9	$	77.5	—	$	78.4		$	34.0
Fiscal Year Ended December 29, 2018
Deducted from asset accounts:
Allowance for doubtful accounts	$	14.2	$	13.0	—	$	17.7	(A)	$	9.5
Allowance for sales returns	12.6		53.8		—	52.8		(B)	13.6
Allowance for cash discounts	4.7		7.7		—	8.9		(C)	3.5
Inventory valuation allowances	11.5		6.1		—	9.3		(D)	8.3
Total	$	43.0	$	80.6	—	$	88.7		$	34.9
Fiscal Year Ended December 30, 2017
Deducted from asset accounts:
Allowance for doubtful accounts	$	17.2	$	18.1	—	$	21.1	(A)	$	14.2
Allowance for sales returns	16.3		52.6		—	56.3		(B)	12.6
Allowance for cash discounts	5.9		17.9		—	19.1		(C)	4.7
Inventory valuation allowances	18.0		10.6		—	17.1		(D)	11.5
Total	$	57.4	$	99.2	—	$	113.6		$	43.0


(A)	Accounts charged off, net of recoveries.


(B)	Actual customer returns.


(C)	Discounts given to customers.

(D)

Adjustment upon disposal of related inventories.

Financial Instruments and Risk Management

12 Months Ended

Dec. 28, 2019

Investments, All Other Investments [Abstract]

Financial Instruments and Risk Management

DERIVATIVE FINANCIAL INSTRUMENTS

The Company follows ASC 815, which requires that all derivative instruments be recorded on the consolidated balance sheets at fair value by establishing criteria for designation and effectiveness of hedging relationships. The Company does not hold or issue financial instruments for trading purposes.

The Company utilizes foreign currency forward exchange contracts designated as cash flow hedges to manage the volatility associated primarily with U.S. dollar inventory purchases made by non-U.S. wholesale operations in the normal course of business. These foreign currency forward exchange hedge contracts extended out to a maximum of 545 days and 524 days as of December 28, 2019 and December 29, 2018, respectively. When foreign exchange contracts are determined not to be highly effective or are terminated before their contractual termination dates, the Company would remove the hedge designation from those contracts and reclassify into earnings the unrealized gains or losses that would otherwise be included in accumulated other comprehensive income (loss) (“AOCI”) within stockholders’ equity. During fiscal 2019, the Company reclassified $1.2 million to other income for foreign currency derivatives that were no longer deemed highly effective.

The Company also utilizes foreign currency forward exchange contracts that are not designated as hedging instruments to manage foreign currency transaction exposure. Foreign currency derivatives not designated as hedging instruments are offset by foreign exchange gains or losses resulting from the underlying exposures of foreign currency denominated assets and liabilities.

The Company has two interest rate swap arrangements, which unless otherwise terminated, will mature on July 13, 2020 and December 6, 2023, respectively. These agreements, which exchange floating rate for fixed rate interest payments over the life of the agreements without the exchange of the underlying notional amounts, have been designated as cash flow hedges of the underlying debt. The notional amounts of the interest rate swap arrangements are used to measure interest to be paid or received and do not

represent the amount of exposure to credit loss. The differential paid or received on the interest rate swap arrangements is recognized as interest expense. In accordance with ASC 815, the Company has formally documented the relationship between the interest rate swaps and the variable rate borrowing, as well as its risk management objective and strategy for undertaking the hedge transactions. This process included linking the derivative to the specific liability or asset on the balance sheet. The Company also assessed at the inception of each hedge, and continues to assess on an ongoing basis, whether the derivatives used in the hedging transactions are highly effective in offsetting changes in the cash flows of the hedged item.

The Company has a cross currency swap to minimize the impact of exchange rate fluctuations. The hedging instrument, which, unless otherwise terminated, will mature on September 1, 2021, has been designated as a hedge of a net investment in a foreign operation. The Company will pay 2.75% on the euro-denominated notional amount and receive 5.00% on the U.S. dollar notional amount, with an exchange of principal at maturity. Changes in fair value related to movements in the foreign currency exchange spot rate are recorded in AOCI, offsetting the currency translation adjustment related to the underlying net investment that is also recorded in AOCI. All other changes in fair value are recorded in interest expense. In accordance with ASC 815, the Company has formally documented the relationship between the cross-currency swap and the Company’s investment in its euro-denominated subsidiary, as well as its risk management objective and strategy for undertaking the hedge transaction. This process included linking the derivative to its net investment on the balance sheet. The Company also assessed at the hedge’s inception, and continues to assess on an ongoing basis, whether the derivative used in the hedging transaction is highly effective in offsetting changes in the net investment in the foreign operations.

The notional amounts of the Company’s derivative instruments are as follows:



(Dollars in millions)	December 28, 2019		December 29, 2018
Foreign exchange contracts:
Hedge contracts	$	246.3	$	220.3
Non-hedge contracts	7.3		4.8
Interest rate swap	355.8		181.3
Cross currency swap	79.8		95.8

The recorded fair values of the Company’s derivative instruments are as follows:



(In millions)	December 28, 2019			December 29, 2018
Financial assets:
Foreign exchange contracts - hedge	$	2.3		$	8.7
Interest rate swap	—			1.6
Financial liabilities:
Foreign exchange contracts - hedge	$	(1.8	)	$	—
Interest rate swap	(1.8		)	—
Cross currency swap	(3.0		)	(8.2		)

Financial Instruments and Risk Management (Fair Value of Debt) (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Fair Value Disclosures [Abstract]
Long-term debt, including current maturities, excluding capital leases	$ 798.4	$ 570.1
Fair value, long-term debt, including current maturities	$ 817.6	$ 566.8

Fair Value Measurements Recurring and Nonrecurring Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	$ 1.2
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	2.3	$ 10.3
Derivative Liability	$ (6.6)	$ (8.2)

Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions

12 Months Ended

Dec. 28, 2019

Dec. 29, 2018

Dec. 30, 2017

Other comprehensive income (loss) before reclassifications

$ 128.9

$ 200.3

$ (0.7)

^[1]

(8.3)

(15.8)

Other comprehensive income (loss), net of tax:

Foreign currency translation adjustments

(20.5)

21.1

Unrealized gain (loss) arising during the period, net of taxes of $0.2, $1.3 and $(7.0)

0.9

14.4

(16.0)

Reclassification adjustments included in net earnings (loss), net of taxes of $(2.2), $1.3 and $(0.3)

(7.6)

2.5

(0.7)

Net actuarial loss arising during the period, net of taxes of $(3.9), $(2.6) and $(3.3)

(14.6)

(9.9)

(6.0)

Amortization of prior actuarial losses, net of taxes of $0.5, $0.7 and $3.5

2.1

2.6

6.3

Curtailment gain arising during the period, net of taxes $0.8 in 2017

0.0

1.5

Settlement loss, net of taxes of $1.5 in 2018

0.0

5.7

0.0

Less: other comprehensive income (loss) attributable to noncontrolling interests

(13.8)

(5.2)

6.2

0.0

(0.2)

0.3

Other comprehensive income (loss) attributable to Wolverine World Wide, Inc.

(13.8)

^[1]

(5.0)

^[1]

5.9

Comprehensive income

115.1

195.1

5.5

Less: comprehensive income (loss) attributable to noncontrolling interests

0.4

0.0

(0.7)

Comprehensive income attributable to Wolverine World Wide, Inc.

114.7

195.1

$ 6.2

Derivative [Member]

Other comprehensive income (loss), net of tax:

Other comprehensive income (loss) attributable to Wolverine World Wide, Inc.

^[1]

$ (6.7)

$ 16.9

[1]	Other comprehensive income (loss) is reported net of taxes and noncontrolling interest.

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
OPERATING ACTIVITIES
Net earnings (loss)	$ 128.9	$ 200.3	$ (0.7)
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization	32.7	31.5	37.2
Deferred income taxes	(9.0)	22.1	(75.8)
Stock-based compensation expense	24.5	31.2	25.4
Pension contribution	0.0	(60.7)	(11.3)
Pension and SERP expense	5.6	11.8	14.9
Debt extinguishment costs	0.0	0.6	0.0
Restructuring and other related costs	0.0	0.0	81.9
Cash payments related to restructuring costs	(0.3)	(5.1)	(64.8)
Impairment of intangible assets	0.0	0.0	68.6
Environmental and other related costs, net of cash payments	48.8	(6.1)	32.3
Loss/(gain) on sale of a business and other assets	0.0	0.3	(7.0)
Other	(11.3)	9.5	(11.3)
Changes in operating assets and liabilities:
Accounts receivable	30.7	(95.0)	(2.7)
Inventories	(23.8)	(44.5)	45.4
Other operating assets	(5.4)	(17.8)	0.3
Accounts payable	0.0	40.6	11.2
Income taxes	3.6	(1.9)	46.1
Other operating liabilities	(2.4)	(19.3)	13.0
Net cash provided by operating activities	222.6	97.5	202.7
INVESTING ACTIVITIES
Business acquisition, net of cash acquired	(15.1)	0.0	0.0
Additions to property, plant and equipment	(34.4)	(21.7)	(32.4)
Proceeds from sale of a business and other assets	0.0	2.2	38.6
Investment in joint ventures	(8.5)	0.0	(2.1)
Other	(3.5)	(2.7)	(5.1)
Net cash used in investing activities	(61.5)	(22.2)	(1.0)
FINANCING ACTIVITIES
Net borrowings (payments) under revolving credit agreements	235.0	124.5	(2.6)
Borrowings of long-term debt	0.0	200.0	0.0
Payments on long-term debt	(7.5)	(538.2)	(37.5)
Payments of debt issuance and debt extinguishment costs	(0.3)	(2.7)	(0.1)
Cash dividends paid	(33.6)	(28.6)	(23.0)
Purchase of common stock for treasury	(319.2)	(174.7)	(51.5)
Proceeds from the exercise of stock options	12.2	24.0	21.4
Contributions from noncontrolling interests	5.7	0.0	0.8
Net cash used in financing activities	(124.6)	(404.5)	(98.0)
Effect of foreign exchange rate changes	1.0	(8.7)	7.5
Increase (decrease) in cash and cash equivalents	37.5	(337.9)	111.2
Cash and cash equivalents at beginning of the year	143.1	481.0	369.8
Cash and cash equivalents at end of the year	180.6	143.1	481.0
OTHER CASH FLOW INFORMATION
Interest paid	32.4	29.0	31.5
Net income taxes paid	23.2	17.4	23.6
Noncash Investing and Financing Items [Abstract]
Additions to property, plant and equipment not yet paid	0.8	1.3	0.8
Business acquisition not yet paid	$ 5.5	$ 0.0	$ 0.0

Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 28, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying Amount of Goodwill and Other Non-Amortizable Intangibles



	Fiscal Year
(In millions)	2019		2018
Goodwill balance at beginning of the year	$	424.4	$	429.8
Acquisition of a business (see Note 19)	12.0		—
Foreign currency translation effects	2.5		(5.4		)
Goodwill balance at end of the year	$	438.9	$	424.4

Schedule of amortizable intangible assets [Table Text Block]

The combined gross carrying values and accumulated amortization for these amortizable intangibles are as follows:



	December 28, 2019
(In millions)	Gross carrying value		Accumulated amortization		Net		Average remaining life (years)
Customer relationships	$	113.3	$	38.8	$	74.5	13
Other	17.3		14.0		3.3		3
Total	$	130.6	$	52.8	$	77.8



	December 29, 2018
(In millions)	Gross carrying value		Accumulated amortization		Net		Average remaining life (years)
Customer relationships	$	100.5	$	31.7	$	68.8	14
Other	14.6		11.5		3.1		3
Total	$	115.1	$	43.2	$	71.9

Estimated Aggregate Future Amortization Expense for Intangibles Assets

Estimated aggregate amortization expense for such intangibles for the fiscal years subsequent to December 28, 2019 is as follows:



(In millions)	2020		2021		2022		2023		2024
Amortization expense	$	6.9	$	6.6	$	6.4	$	6.1	$	5.9

Fair Value Measurements (Notes)

12 Months Ended

Dec. 28, 2019

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

FAIR VALUE MEASUREMENTS

The Company follows FASB ASC Topic 820, Fair Value Measurements and Disclosures (“ASC 820”), which provides a consistent definition of fair value, focuses on exit price, prioritizes the use of market-based inputs over entity-specific inputs for measuring fair value and establishes a three-tier hierarchy for fair value measurements. ASC 820 requires fair value measurements to be classified and disclosed in one of the following three categories:



Level 1:		Fair value is measured using quoted prices (unadjusted) in active markets for identical assets and liabilities.

Level 2:		Fair value is measured using either direct or indirect inputs, other than quoted prices included within Level 1, which are observable for similar assets or liabilities.

Level 3:		Fair value is measured using valuation techniques in which one or more significant inputs are unobservable.

Recurring Fair Value Measurements



	Fair Value Measurements
	Quoted Prices With Other Observable Inputs (Level 2)
(In millions)	December 28, 2019			December 29, 2018
Financial assets:
Derivatives	$	2.3		$	10.3
Financial liabilities:
Derivatives	$	(6.6	)	$	(8.2	)

The fair value of foreign currency forward exchange contracts represents the estimated receipts or payments necessary to terminate the contracts. The two interest rate swaps are valued based on the current forward rates of the future cash flows. The fair value of the cross-currency swap is determined using the current forward rates and changes in the spot rate.

Fair Value Disclosures

The Company’s financial instruments that are not recorded at fair value consist of cash and cash equivalents, accounts and notes receivable, accounts payable, borrowings under revolving credit agreements and other short-term and long-term debt. The carrying amount of these financial instruments is historical cost, which approximates fair value, except for the debt. The carrying value and the fair value of the Company’s debt are as follows:



(In millions)	December 28, 2019		December 29, 2018
Carrying value	$	798.4	$	570.1
Fair value	817.6		566.8

The fair value of the fixed rate debt was based on third-party quotes (Level 2). The fair value of the variable rate debt was calculated by discounting the future cash flows to its present value using a discount rate based on the risk-free rate of the same maturity (Level 3).

Commitments and Contingencies Disclosure [Abstract]

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Earnings Per Share (Policies)	12 Months Ended
Earnings Per Share (Policies)	Dec. 28, 2019
Earnings Per Share [Abstract]
Earnings Per Share	The Company calculates earnings per share in accordance with FASB ASC Topic 260, Earnings Per Share (“ASC 260”). ASC 260 addresses whether instruments granted in share-based payment transactions are participating securities prior to vesting, and, therefore, need to be included in the earnings allocation in computing earnings per share under the two-class method. Under the guidance in ASC 260, the Company’s unvested share-based payment awards that contain non-forfeitable rights to dividends, whether paid or unpaid, are participating securities and must be included in the computation of earnings per share pursuant to the two-class method.

Debt

12 Months Ended

Dec. 28, 2019

Debt Disclosure [Abstract]

Indebtedness

DEBT

Total debt consists of the following obligations:



(In millions)	December 28, 2019			December 29, 2018
Term Loan A, due December 6, 2023	$	192.5		$	200.0
Senior Notes, 5.000% interest, due September 1, 2026	250.0			250.0
Borrowings under revolving credit agreements	360.0			125.0
Capital lease obligation	—			0.4
Unamortized deferred financing costs	(4.1		)	(4.9		)
Total debt	$	798.4		$	570.5

On December 6, 2018, the Company amended its credit agreement (as amended, the "Credit Agreement"). The Credit Agreement includes a $200.0 million term loan facility (“Term Loan A”) and an $800.0 million Revolving Credit Facility, both with maturity dates of December 6, 2023. The Credit Agreement’s debt capacity is limited to an aggregate debt amount (including outstanding term loan principal and revolver commitment amounts in addition to permitted incremental debt) not to exceed $1,750.0 million, unless certain specified conditions set forth in the Credit Agreement are met. Term Loan A requires quarterly principal payments with a balloon payment due on December 6, 2023. The scheduled principal payments due over the next 12 months total $12.5 million as of December 28, 2019 and are recorded as current maturities of long-term debt on the consolidated balance sheets.

The Revolving Credit Facility allows the Company to borrow up to an aggregate amount of $800.0 million, which includes a $200.0 million foreign currency subfacility under which borrowings may be made, subject to certain conditions, in Canadian dollars, British pounds, euros, Hong Kong dollars, Swedish kronor, Swiss francs and such additional currencies as are determined in accordance with the Credit Agreement. The Revolving Credit Facility also includes a $50.0 million swingline subfacility and a $50.0 million letter of credit subfacility. The Company also had outstanding letters of credit under the Revolving Credit Facility of $5.7 million and $2.5 million as of December 28, 2019 and December 29, 2018, respectively. These outstanding borrowings and letters of credit reduce the borrowing capacity under the Revolving Credit Facility.

The interest rates applicable to amounts outstanding under Term Loan A and to U.S. dollar denominated amounts outstanding under the Revolving Credit Facility will be, at the Company’s option, either (1) the Alternate Base Rate plus an Applicable Margin as determined by the Company’s Consolidated Leverage Ratio, within a range of 0.125% to 0.750%, or (2) the Eurocurrency Rate plus an Applicable Margin as determined by the Company’s Consolidated Leverage Ratio, within a range of 1.125% to 1.750% (all capitalized terms used in this sentence are as defined in the Credit Agreement). The Company has interest rate swap arrangements that reduce the Company’s exposure to fluctuations in interest rates on its variable rate debt. At December 28, 2019, Term Loan A and the Revolving Credit Facility had weighted-average interest rates of 3.13% and 3.05%, respectively.

The obligations of the Company pursuant to the Credit Agreement are guaranteed by substantially all of the Company’s material domestic subsidiaries and secured by substantially all of the personal and real property of the Company and its material domestic subsidiaries, subject to certain exceptions.

The Credit Agreement also contains certain affirmative and negative covenants, including covenants that limit the ability of the Company and its Restricted Subsidiaries to, among other things: incur or guarantee indebtedness; incur liens; pay dividends or repurchase stock; enter into transactions with affiliates; consummate asset sales, acquisitions or mergers; prepay certain other indebtedness; or make investments, as well as covenants restricting the activities of certain foreign subsidiaries of the Company that hold intellectual property related assets. Further, the Credit Agreement requires compliance with the following financial covenants: a maximum Consolidated Leverage Ratio and a minimum Consolidated Interest Coverage Ratio (all capitalized terms used in this paragraph are as defined in the Credit Agreement). As of December 28, 2019, the Company was in compliance with all covenants and performance ratios under the Credit Agreement.

The Company has $250.0 million of senior notes outstanding that are due on September 1, 2026 (the “Senior Notes”). The Senior Notes bear interest at 5.00% with the related interest payments due semi-annually. The Senior Notes are guaranteed by substantially all of the Company’s domestic subsidiaries.

The Company has a foreign revolving credit facility with aggregate available borrowings of $4.0 million that are uncommitted and, therefore, each borrowing against the facility is subject to approval by the lender. As of December 28, 2019 and December 29, 2018 there were no borrowings against this credit facility.

Prior to fiscal 2019, the Company had a capital lease obligation. As a result of the adoption of ASU 2016-02, Leases, the capital lease is now classified as a financing lease and is no longer included in long term debt.

The Company included in interest expense the amortization of deferred financing costs of $1.6 million, $2.8 million, and $2.8 million in fiscal years 2019, 2018 and 2017, respectively.

Annual maturities of debt, including capital leases, for the fiscal years subsequent to December 28, 2019 are as follows:



(In millions)	2020		2021		2022		2023		2024		Thereafter
Annual maturities of debt	$	372.5	$	10.0	$	10.0	$	160.0	$	—	$	250.0

Litigation and Contingencies

12 Months Ended

Dec. 28, 2019

Litigation and Contingencies

LITIGATION AND CONTINGENCIES

Litigation

The Company operated a leather tannery in Rockford, Michigan from the early 1900s through 2009 (the “Tannery”). The Company also owns a parcel on House Street in Plainfield Township that the Company used for the disposal of Tannery byproducts until about 1970 (the "House Street" site). Beginning in the late 1950s, the Company used 3M Company’s Scotchgard™ in its processing of certain leathers at the Tannery. Until 2002 when 3M Company changed its Scotchgard™ formula, Tannery byproducts disposed of by the Company at the House Street site and other locations may have contained PFOA and/or PFOS, two chemicals in the family of compounds known as per- and polyfluoroalkyl substances (together, “PFAS”). PFOA and PFOS help provide non-stick, stain-resistant, and water-resistant qualities, and were used for many decades in commercial products like firefighting foams and metal plating, and in common consumer items like food wrappers, microwave popcorn bags, pizza boxes, Teflon™, carpets and Scotchgard™.

The United States Centers for Disease Control and Prevention has concluded that studies of the health effects of PFOA and PFOS are “inconsistent and inconclusive,” but in May 2016, the Environmental Protection Agency (“EPA”) announced a lifetime health advisory level of 70 parts per trillion ("ppt") combined for PFOA and PFOS. Lifetime health advisories, while not enforceable, serve as guidance and are benchmarks for determining if concentrations of chemicals in tap water from public utilities are safe for public consumption. In January 2018, the Michigan Department of Environmental Quality (“MDEQ”) enacted a drinking water criterion of 70 ppt combined for PFOA and PFOS, which set an official state standard for acceptable concentrations of these contaminants in groundwater used for drinking water purposes. On April 22, 2019, the MDEQ was reorganized into the Michigan Department of Environment, Great Lakes, and Energy (“EGLE”).

The Company has been served with two regulatory actions including a civil action filed by the EGLE under the federal Resource Conservation and Recovery Act of 1976 (“RCRA”), Part 201 of the Michigan Natural Resources and Environmental Protection Act (“NREPA”) and Part 31 of NREPA, and a Unilateral Administrative Order issued by the EPA under the Comprehensive Environmental Response, Compensation, and Liability Act (“CERCLA”) Section 106. The Company has also been served with individual lawsuits and three putative class action lawsuits. The three putative class action lawsuits were subsequently refiled as a single consolidated putative class action lawsuit.

Civil and Regulatory Actions of EGLE and EPA

On January 10, 2018, EGLE filed a civil action against the Company in the U.S District Court for the Western District of Michigan under RCRA and Parts 201 and 31 of NREPA alleging that the Company’s past and present handling, storage, treatment, transportation and/or disposal of solid waste at the Company’s properties has contributed to the disposal of solid wastes that was done in a way that resulted in releases of PFAS at levels that resulted in detections exceeding applicable Michigan cleanup criteria for PFOA and PFOS (the "EGLE Action"). Plainfield and Algoma Townships intervened in the EGLE Action alleging claims under RCRA, CERCLA, Part 201 of NREPA, and common law nuisance.

On December 19, 2018, the Company filed a third-party complaint against 3M Company seeking, among other things, recovery of the Company’s remediation and other costs incurred in defense of the EGLE Action ("the 3M Action"). On June 20, 2019, the 3M Company filed a counterclaim against the Company in response to the 3M Action, seeking, among other things, contractual and common law indemnity and contribution under CERCLA and Part 201 of NREPA. On February 3, 2020, the parties entered into a consent decree resolving the EGLE Action, which was approved by U.S. District Judge Janet T. Neff on February 19, 2020 (the “Consent Decree”). On February 20, 2020, the Company and 3M Company entered into a settlement agreement resolving the 3M Action, under which 3M Company will pay the Company a lump sum amount of $55.0 million in fiscal 2020. The Company has recognized the $55.0 million as a loss recovery partially offsetting the environmental remediation costs recorded in fiscal 2019 and is recorded in the prepaid expenses and other current assets line item on the consolidated balance sheets.

Under the Consent Decree, the Company will pay to extend Plainfield Township’s municipal water system to more than 1,000 properties in Plainfield and Algoma Townships, subject to an aggregate cap of $69.5 million. The Consent Decree also obligates the Company to continue maintaining water filters for certain homeowners, resample certain residential wells for PFAS, continue remediation at the Company’s Tannery property and House Street site, and conduct further investigations and monitoring to the assess the presence of PFAS in area groundwater.

On January 10, 2018, the EPA entered a Unilateral Administrative Order (the “Order”) under Section 106(a) of CERCLA, 42 U.S.C. § 9606(a). The effective date of the Order was February 1, 2018. The Order pertained to the Company's Tannery and House Street sites and directed the Company to conduct specified removal actions, including certain time critical removal actions subsequently identified in an April 29, 2019 letter from the EPA, to abate the actual or threatened release of hazardous substances at or from the sites. On October 28, 2019, the EPA and the Company entered into an Administrative Settlement and Order on Consent (“AOC”) that supersedes the Order and addresses the agreed-upon removal actions outlined in the Order. The Company has already completed some of these activities and submitted work plans for completion of the remaining items.

The Company discusses its reserve for remediation costs in the environmental liabilities section below.

Individual and Class Action Litigation

Individual lawsuits and three putative class action lawsuits have been filed against the Company that raise a variety of claims, including claims related to property, remediation, and human health effects. The three putative class action lawsuits were subsequently refiled in the U.S. District Court for the Western District of Michigan as a single consolidated putative class action lawsuit. 3M Company, which sold Scotchgard containing PFAS to the Company, has been named as a co-defendant in the individual lawsuits and consolidated putative class action lawsuit. In addition, the current owner of a former landfill and gravel mining operation has sued the Company seeking damages and cost recovery for property damage allegedly caused by the Company’s disposal of tannery waste containing PFAS (collectively with the individual lawsuits and putative class action, the “Litigation Matters”).

Assessing potential liability with respect to the Litigation Matters at this time is difficult. The Litigation Matters are in various stages of discovery and related motions. In addition, there is minimal direct and relevant precedent for these types of claims related to PFAS, and the science regarding the human health effects of PFAS exposure in the environment remains inconclusive and inconsistent, thereby creating additional uncertainties. Due to these factors, combined with the complexities and uncertainties of litigation, the Company is unable to conclude that adverse verdicts resulting from the Litigation Matters are probable, and therefore no amounts are currently reserved for these claims. The Company intends to continue to vigorously defend itself against these claims.

In addition, in December 2018 the Company filed a lawsuit against certain of its historic liability insurers, seeking their participation in Wolverine's defense and remediation efforts. No estimated recoveries from legacy insurance policies have been recognized.

Other Litigation

The Company is also involved in litigation incidental to its business and is a party to legal actions and claims, including, but not limited to, those related to employment and intellectual property. Some of the legal proceedings include claims for compensatory as well as punitive damages. While the final outcome of these matters cannot be predicted with certainty, considering, among

other things, the meritorious legal defenses available and liabilities that have been recorded along with applicable insurance, it is management’s opinion that the outcome of these items are not expected to have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows.

Environmental Liabilities

The following is a summary of the activity with respect to the environmental remediation reserve established by the Company:



	Fiscal Year
(In millions)	2019			2018
Remediation liability at beginning of the year	$	22.6		$	31.1
Changes in estimate	112.9			4.8
Amounts paid	(11.1		)	(13.3		)
Remediation liability at the end of the year	$	124.4		$	22.6

The reserve balance as of December 28, 2019 includes $41.5 million that is expected to be paid within the next twelve months and is recorded as a current obligation in other accrued liabilities, with the remaining $82.9 million expected to be paid over the course of up to 25 years, recorded in other liabilities.

The Company's remediation activity at the Tannery property, House Street site and other relevant disposal sites is ongoing. Although the recent Consent Decree has made near-term costs more clear, it is difficult to estimate the long-term cost of environmental compliance and remediation given the uncertainties regarding the interpretation and enforcement of applicable environmental laws and regulations, the extent of environmental contamination and the existence of alternative cleanup methods. Future developments may occur that could materially change the Company’s current cost estimates, including, but not limited to: (i) changes in the information available regarding the environmental impact of the Company’s operations and products; (ii) changes in environmental regulations, changes in permissible levels of specific compounds in drinking water sources, or changes in enforcement theories and policies, including efforts to recover natural resource damages; (iii) new and evolving analytical and remediation techniques; (iv) changes to the form of remediation; (v) success in allocating liability to other potentially responsible parties; and (vi) the financial viability of other potentially responsible parties and third-party indemnitors. For locations at which remediation activity is largely ongoing, the Company cannot estimate a possible loss or range of loss in excess of the associated established reserves for the reasons described above. The Company adjusts recorded liabilities as further information develops or circumstances change.

Minimum Royalties and Advertising Commitments

The Company has future minimum royalty and advertising obligations due under the terms of certain licenses held by the Company. These minimum future obligations for the fiscal years subsequent to December 28, 2019 are as follows:



(In millions)	2020		2021		2022		2023		2024		Thereafter
Minimum royalties	$	1.5	$	1.7	$	1.8	$	—	$	—	$	—
Minimum advertising	3.2		3.3		3.4		3.5		3.6		—

Minimum royalties are based on both fixed obligations and assumptions regarding the Consumer Price Index. Royalty obligations in excess of minimum requirements are based upon future sales levels. In accordance with these agreements, the Company incurred royalty expense of $2.3 million, $2.2 million and $2.3 million for fiscal years 2019, 2018 and 2017, respectively.

The terms of certain license agreements also require the Company to make advertising expenditures based on the level of sales of the licensed products. In accordance with these agreements, the Company incurred advertising expense of $3.6 million, $3.3 million and $3.2 million for fiscal years 2019, 2018 and 2017, respectively.

Inventories	12 Months Ended
Inventories	Dec. 28, 2019
Inventory Disclosure [Abstract]
Inventories	INVENTORIES The Company used the LIFO method to value inventories of $81.2 million and $61.1 million at December 28, 2019 and December 29, 2018, respectively. During fiscal years 2019 and 2018, a reduction in inventory quantities resulted in a liquidation of applicable LIFO inventory quantities carried at lower costs in prior years. This LIFO liquidation decreased cost of goods sold by $0.4 million and $4.6 million, respectively. If the FIFO method had been used, inventories would have been $11.4 million and $11.8 million higher than reported at December 28, 2019 and December 29, 2018, respectively.

Retirement Plans

12 Months Ended

Dec. 28, 2019

Retirement Benefits [Abstract]

Retirement Plans

RETIREMENT PLANS

The Company has two non-contributory, defined benefit pension plans that provide retirement benefits to less than half of its domestic employees. The Company’s principal defined benefit pension plan, which is closed to new participants, provides benefits based on the employee’s years of service and final average earnings. The second plan is closed to new participants and no longer accrue future benefits.

The Company has a Supplemental Executive Retirement Plan (the “SERP”) for certain current and former employees that entitles a participating employee to receive payments from the Company following retirement based on the employee’s years of service and final average earnings (as defined in the SERP). Under the SERP, the employees can elect early retirement with a corresponding reduction in benefits. The Company also has individual deferred compensation agreements with certain former employees that entitle those employees to receive payments from the Company following retirement, generally for the duration of their lives. The Company maintains life insurance policies with a cash surrender value of $66.8 million at December 28, 2019 and $64.4 million at December 29, 2018 that are intended to partially fund deferred compensation benefits under the SERP and deferred compensation agreements.

The Company has two defined contribution 401(k) plans covering substantially all domestic employees that provide for discretionary Company contributions based on the amount of participant deferrals. The Company recognized expense for its contributions to the defined contribution plans of $5.2 million, $4.5 million and $4.2 million in fiscal years 2019, 2018 and 2017, respectively.

The Company also has certain defined contribution plans at foreign subsidiaries. Contributions to these plans were $1.1 million, $1.1 million and $1.0 million in fiscal years 2019, 2018 and 2017, respectively. The Company also has a benefit plan at a foreign location that provides for retirement benefits based on years of service. The obligation recorded under this plan was $0.9 million at December 28, 2019 and $1.1 million at December 29, 2018 and was recognized as a deferred compensation liability on the consolidated balance sheets.



	Fiscal Year
(In millions)	2019			2018
Change in projected benefit obligations:
Projected benefit obligations at beginning of the year	$	348.8		$	443.4
Service cost pertaining to benefits earned during the year	5.5			6.3
Interest cost on projected benefit obligations	15.2			16.5
Actuarial loss (gain)	45.4			(31.6		)
Benefits paid to plan participants	(13.9		)	(19.2		)
Settlement	—			(66.6		)
Projected benefit obligations at end of the year	$	401.0		$	348.8
Change in fair value of pension assets:
Fair value of pension assets at beginning of the year	$	254.4		$	299.6
Actual return (loss) on plan assets	44.7			(22.6		)
Company contributions - pension	—			60.7
Company contributions - SERP	2.4			2.5
Benefits paid to plan participants	(13.9		)	(19.2		)
Settlement	—			(66.6		)
Fair value of pension assets at end of the year	$	287.6		$	254.4
Funded status	$	(113.4	)	$	(94.4	)
Amounts recognized in the consolidated balance sheets:
Noncurrent assets	$	—		$	1.4
Current liabilities	(3.7		)	(3.8		)
Noncurrent liabilities	(109.7		)	(92.0		)
Net amount recognized	$	(113.4	)	$	(94.4	)
Funded status of pension plans and SERP (supplemental):
Funded status of qualified defined benefit plans and SERP	$	(113.4	)	$	(94.4	)
Nonqualified trust assets (cash surrender value of life insurance) recorded in other assets and intended to satisfy the projected benefit obligation of unfunded SERP obligations	59.6			57.4
Net funded status of pension plans and SERP (supplemental)	$	(53.8	)	$	(37.0	)

Unrecognized net actuarial loss recognized in AOCI was $61.4 million and $44.6 million, and amounts net of tax were $48.7 million and $36.2 million, as of December 28, 2019 and December 29, 2018, respectively. The accumulated benefit obligations for all defined benefit pension plans and the SERP were $378.4 million at December 28, 2019 and $319.1 million at December 29, 2018. The actuarial loss included in accumulated other comprehensive loss and expected to be recognized in net periodic pension expense during 2020 is $6.6 million.

The following is a summary of net pension and SERP expense recognized by the Company:



	Fiscal Year
(In millions)	2019			2018			2017
Service cost pertaining to benefits earned during the year	$	5.5		$	6.3		$	7.2
Interest cost on projected benefit obligations	15.2			16.5			17.7
Expected return on pension assets	(17.7		)	(21.5		)	(19.8		)
Net amortization loss	2.6			3.3			9.8
Settlement loss	—			7.2			—
Net pension expense	$	5.6		$	11.8		$	14.9
Less: SERP expense	5.4			5.5			5.5
Qualified defined benefit pension plans expense	$	0.2		$	6.3		$	9.4

During fiscal 2018, the Company completed a pension annuity purchase, which settled $66.6 million of projected benefit obligations. The Company recognized a settlement loss of $7.2 million due to the annuity purchase.

The weighted-average actuarial assumptions used to determine the benefit obligation amounts and the net periodic benefit cost for the Company’s pension and post-retirement plans are as follows:



	Fiscal Year
	2019	2018
Weighted-average assumptions used to determine benefit obligations at fiscal year-end:
Discount rate	3.60%	4.46%
Rate of compensation increase - pension	4.23%	3.82%
Rate of compensation increase - SERP	7.00%	7.00%
Weighted average assumptions used to determine net periodic benefit cost for the years ended:
Discount rate	4.46%	3.80%
Expected long-term rate of return on plan assets	6.75%	7.00%
Rate of compensation increase - pension	3.82%	3.92%
Rate of compensation increase - SERP	7.00%	7.00%

Unrecognized net actuarial losses exceeding certain corridors are amortized over one of two amortization periods, based on each plan's election. The amortization period is either a five-year period, unless the minimum amortization method based on average remaining service periods produces a higher amortization; or, over the average remaining service period of participants expected to receive benefits. The Company utilizes a bond matching calculation to determine the discount rate. A hypothetical bond portfolio is created based on a presumed purchase of high-quality corporate bonds with maturities that match the plan’s expected future cash outflows. The discount rate is the resulting yield of the hypothetical bond portfolio. The discount rate is used in the calculation of the year-end pension liability and the service and interest cost for the subsequent year.

The long-term rate of return is based on overall market expectations for a balanced portfolio with an asset mix similar to the Company’s, utilizing historic returns for broad market and fixed income indices. The Company’s investment policy for plan assets uses a blended approach of U.S. and foreign equities combined with U.S. fixed income investments. The target investment allocations as of December 28, 2019 were 57% in equity securities, 38% in fixed income securities and 5% in real estate investments. Within the equity and fixed income classifications, the investments are diversified. The Company’s asset allocations by asset category and fair value measurement are as follows:



	December 28, 2019					December 29, 2018
(In millions)	Total			% of Total		Total			% of Total
Equity securities	$	162.2	¹	56.4	%	$	138.2	¹	54.4	%
Fixed income securities	106.2		¹	36.9	%	98.0		¹	38.5	%
Real estate investments	16.9		¹	5.9	%	16.1		¹	6.3	%
Other	2.3		²	0.8	%	2.1		²	0.8	%
Fair value of plan assets	$	287.6		100.0	%	$	254.4		100.0	%


¹	In accordance with ASC 820, Fair Value Measurement (“ASC 820”), certain investments are measured at fair value using the net asset value per share as a practical expedient. These assets have not been classified in the fair value hierarchy.


²	In accordance with ASC 820, investments have been measured using valuation techniques in which one or more significant inputs are unobservable (Level 3). See Note 16 for additional information.

The Company does not expect to make any contributions to its qualified defined benefit pension plans in fiscal 2020 and to make $3.7 million in contributions to the SERP in fiscal 2020.

Expected benefit payments for the fiscal years subsequent to December 28, 2019 are as follows:



(In millions)	2020		2021		2022		2023		2024		2025-2029
Expected benefit payments	$	15.7	$	16.3	$	17.0	$	17.7	$	18.5	$	102.6

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Statement of Comprehensive Income [Abstract]
Unrealized loss on derivatives, tax amount	$ (0.2)	$ (1.3)	$ 7.0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax	(2.2)	1.3	(0.3)
Actuarial loss arising during the period, tax amount	3.9	2.6	3.3
Amortization of prior actuarial losses, tax amount	0.5	0.7	3.5
Other Comprehensive Income Loss Reclassification Adjustment From AOCI Pension and Other Postretirement Benefit Plans Curtailment Gain Loss Tax	0.0	0.0	0.8
Settlement gain included in net income, tax amount	$ 0.0	$ 1.5	$ 0.0

Earnings Per Share Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net earnings attributable to Wolverine World Wide, Inc.	$ (0.9)	$ 48.7	$ 40.2	$ 40.5	$ 39.3	$ 58.8	$ 55.3	$ 46.7	$ 128.5	$ 200.1	$ 0.3
Less: net earnings attributed to participating share-based awards									(2.6)	(7.5)	0.0
Net earnings used to calculate basic earnings per share									125.9	192.6	0.3
Adjustment for earnings (loss) reallocated to participating share-based awards									0.1	1.8	(0.2)
Net earnings used to calculate diluted earnings per share									$ 126.0	$ 194.4	$ 0.1
Weighted average shares outstanding									85.7	94.8	96.4
Adjustment for unvested restricted common stock									(0.6)	(1.8)	(2.7)
Shares used to calculate basic earnings per share									85.1	93.0	93.7
Effect of dilutive share-based awards									2.1	2.0	1.7
Shares used to calculate diluted earnings per share									87.2	95.0	95.4
Earnings per share - Basic	$ (0.01)	$ 0.57	$ 0.45	$ 0.44	$ 0.39	$ 0.62	$ 0.58	$ 0.49	$ 1.48	$ 2.07	$ 0
Earnings per share - Diluted	$ (0.01)	$ 0.57	$ 0.45	$ 0.43	$ 0.39	$ 0.60	$ 0.57	$ 0.48	$ 1.44	$ 2.05	$ 0

Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($)
$ in Millions

12 Months Ended

Dec. 28, 2019

Dec. 29, 2018

Dec. 30, 2017

SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]

$ 34.9

$ 43.0

$ 57.4

77.5

80.6

99.2

0.0

78.4

88.7

113.6

Allowance for doubtful accounts [Member]

34.0

34.9

43.0

SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]

9.5

14.2

17.2

16.3

13.0

18.1

0.0

^[1]

13.7

17.7

21.1

Allowance for sales returns [Member]

12.1

9.5

14.2

SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]

13.6

12.6

16.3

50.2

53.8

52.6

0.0

^[2]

52.4

52.8

56.3

Allowance for cash discounts [Member]

11.4

13.6

12.6

SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]

3.5

4.7

5.9

4.1

7.7

17.9

0.0

^[3]

4.4

8.9

19.1

Inventory valuation allowances [Member]

3.2

3.5

4.7

SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]

8.3

11.5

18.0

6.9

6.1

10.6

0.0

^[4]

7.9

9.3

17.1

Lessee, Operating Leases [Text Block]

$ 7.3

$ 8.3

$ 11.5

[1]	Accounts charged off, net of recoveries.
[2]	Actual customer returns.
[3]	Discounts given to customers.
[4]	Adjustment upon disposal of related inventories.

Leases Future Lease Payments (Details) $ in Millions	Dec. 28, 2019 USD ($)
Leases [Abstract]
2020	$ 34.1
2021	30.3
2022	27.6
2023	20.5
2024	17.7
Thereafter	105.1
Total future payments	235.3
Less: imputed interest	54.0
Recognized lease liability	$ 181.3

Debt (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Debt Instrument [Line Items]
Current maturities of long-term debt	$ 12,500	$ 7,500
Borrowings under revolving credit agreements	360,000	125,000
Amortized deferred financing costs	1,600	2,800	$ 2,800
Maximum [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debt instrument	$ 1,750,000
Alternative Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	0.75%
Alternative Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	0.125%
Euro Currency Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	1.75%
Euro Currency Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	1.125%
Foreign Currency Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	$ 200,000
Swingline Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	50,000
Letter of Credit Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	50,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debt instrument	800,000
Letters of credit, amount outstanding	5,700	2,500
Foreign Line of Credit [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	$ 4,000
Borrowings under revolving credit agreements		$ 0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	3.05%
December Sixth Two Thousand Twenty Three [Domain] \| Term Loan A [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debt instrument	$ 200,000
Debt, Weighted Average Interest Rate	3.13%
September First Two Thousand Twenty Six [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debt instrument	$ 250,000
Interest rate (percent)	5.00%

Leases (Notes)

12 Months Ended

Dec. 28, 2019

Leases [Abstract]

LEASES

The Company adopted ASU 2016-02, Leases, at the beginning of the first quarter of fiscal 2019 using the modified retrospective approach applied to all leases as of the date of application. The Company elected the package of practical expedients for leases existing as of the effective date under which it did not reassess whether contracts contain leases under the new definition of a lease, the lease classification or whether previously capitalized initial direct costs would qualify for capitalization under ASU 2016-02. In addition, the Company did not elect the hindsight practical expedient for considering judgments and estimates relating to its existing leases such as determining the remaining lease term.

Description of Leases

The Company’s leases consist primarily of corporate offices, retail stores, distribution centers, showrooms, vehicles and office equipment. The Company leases assets in the normal course of business to meet its current and future needs while providing flexibility to its operations. The Company enters into contracts with third parties to lease specifically identified assets. Most of the Company’s leases have contractually specified renewal periods. Most retail store leases have early termination clauses that the Company can elect if stipulated sales amounts are not achieved. The Company determines the lease term for each lease based on the terms of each contract and factors in renewal and early termination options if such options are reasonably certain to be exercised.

Accounting for Leases

Under FASB ASC Topic 842, Leases, the Company has elected the practical expedient to account for lease components and nonlease components associated with individual leases as a single lease component for all of its leases. In addition, the Company has elected to account for multiple lease components as a single lease component. The Company’s leases may include variable lease costs such as payments based on changes to an index, payments based on a percentage of retail store sales, and maintenance, utilities, shared marketing or other service costs that are paid directly to the lessor under terms of the lease. The Company recognizes variable lease payments when the amounts are incurred and determinable. The Company has elected to account for leases of less than one year as short-term leases and accordingly does not recognize a right-of-use asset or lease liability for these leases. The Company recognizes rent expense on a straight-line basis over the lease term.

The Company subleases certain portions of leased offices and distribution centers that exceed the Company’s current operational needs. Since the Company utilizes the majority of the leased space and retains the obligation to the lessor, the underlying leases continue to be accounted for as operating leases. Sublease income is recognized on a straight-line basis over the term of the sublease, and beginning in fiscal 2019, is recognized in other expense (income), net on the consolidated statements of operations.

The Company recognizes a lease liability in current and noncurrent liabilities equal to the present value of the fixed future lease payments using an incremental borrowing rate as of the commencement date of each lease. The incremental borrowing rate is based on interest rate that the Company would normally pay to borrow on a collateralized basis over a similar term and amount equal to the lease payments. The weighted-average discount rate for operating leases as of December 28, 2019 is 5.2%. The Company also recognizes a right-of-use asset, which is equal to the lease liability as of December 28, 2019 adjusted for the remaining balance of accrued rent and unamortized lease incentives.

The following is a summary of the Company’s lease cost.



	Fiscal Year
(In millions)	2019
Operating lease cost	$	32.6
Variable lease cost	14.5
Short-term lease cost	1.2
Sublease income	(4.0		)
Total lease cost	$	44.3

The weighted-average remaining lease term for operating leases as of December 28, 2019 is 10.1 years. Future undiscounted cash flows for operating leases for the fiscal periods subsequent to December 28, 2019 are as follows:



(In millions)	Operating Leases
2020	$	34.1
2021	30.3
2022	27.6
2023	20.5
2024	17.7
Thereafter	105.1
Total future payments	235.3
Less: imputed interest	54.0
Recognized lease liability	$	181.3

The Company made cash payments of $33.2 million for operating lease liabilities during fiscal 2019. During fiscal 2019, the Company entered into new or amended leases that resulted in the noncash recognition of right-of-use assets and lease liabilities of $26.8 million. In addition, the Company entered into real estate leases which will commence subsequent to December 28, 2019 with future undiscounted rental payments of $4.8 million. The Company has a financing lease with future payments of $0.3 million and a remaining term of 2.1 years.

Rental expense under all operating leases, under the previous lease standard ASC 840 and consisting primarily of minimum rentals, totaled $32.0 million and $39.9 million in fiscal years 2018 and 2017, respectively. The Company recognized sublease income of $2.8 million and $1.9 million in fiscal years 2018 and 2017, respectively.

Goodwill and Other Intangibles Goodwill and Indefinite Lived Intangibles (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Goodwill [Roll Forward]
Goodwill	$ 424.4	$ 429.8
Goodwill, Foreign currency translation effects	2.5	(5.4)
Goodwill, Acquired During Period	12.0	0.0
Goodwill	$ 438.9	$ 424.4

Business Acquisitions

12 Months Ended

Dec. 28, 2019

Business Combinations [Abstract]

Business Acquisitions

BUSINESS ACQUISITIONS

On April 30, 2019, the Company acquired assets and assumed liabilities from Sportlab S.R.L. (“Sportlab”), the distributor of Saucony^® footwear in Italy. Total purchase consideration of $25.2 million includes cash paid, extinguishment of Sportlab’s accounts payable balance that was due to the Company at the time of acquisition and contingent consideration. The contingent consideration was based on sales activity from the date of the acquisition through the end of fiscal 2019 and was paid in the first quarter of fiscal 2020. The detailed amounts of each component of the purchase consideration are as follows:



(In millions)	Purchase Consideration
Cash paid	$	15.1
Extinguishment of Sportlab’s accounts payable balance	4.6
Contingent consideration	5.5
Total purchase consideration	$	25.2

The Company accounted for the acquisition under the provisions of FASB ASC Topic 805, Business Combinations. The related assets acquired and liabilities assumed were recorded at fair value on the acquisition date. The operating results for the acquired Saucony^® distribution business are included in the Company’s consolidated results of operations beginning April 30, 2019, and are included in the Wolverine Boston Group reporting group for segment reporting purposes.

The final allocation of the purchase price as of December 28, 2019 was:



(In millions)	Final Valuation
Accounts receivable	$	1.8
Inventories	6.2
Goodwill	12.0
Amortizable intangibles	12.9
Total assets acquired	32.9
Deferred income taxes	3.2
Other liabilities	4.5
Total liabilities assumed	7.7
Net assets acquired	$	25.2

The excess of the purchase price over the fair value of the net assets acquired, amounting to $12.0 million, was recorded as goodwill in the consolidated balance sheet and was assigned to the Wolverine Boston Group operating segment. The goodwill that was recognized is attributable to the efficiencies to be gained by integrating operations with the Saucony^® distribution business purchased from Sportlab. Other intangible assets acquired include order backlog, valued at $1.7 million, and customer relationship assets, valued at $11.2 million, which had estimated useful lives at the acquisition date of 7 months and 14 years, respectively.

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Shares issued under stock incentive plans, net of forfeitures	38,655	(154,084)	(488,655)
Shares issued for stock options exercised, net	681,389	1,357,841	1,247,064
Cash dividends declared per share	$ 0.40	$ 0.32	$ 0.24
Issuance of treasury shares	7,460	7,761	44,480
Purchases of shares under employee stock plans	10,914,965	5,349,262	1,639,732
Shares Paid for Tax Withholding for Share Based Compensation	368,326	219,039	227,464

Business Segments - Geographic Information, Based on Shipping Destination, Related to Revenue from External Customers (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Revenue from External Customer [Line Items]
Revenues	$ 2,273.7	$ 2,239.2	$ 2,350.0
United States [Member]
Revenue from External Customer [Line Items]
Revenues	1,507.9	1,505.2	1,608.7
Europe [Member]
Revenue from External Customer [Line Items]
Revenues	343.1	325.7	322.4
Asia Pacific [Member]
Revenue from External Customer [Line Items]
Revenues	193.7	186.0	189.4
CANADA
Revenue from External Customer [Line Items]
Revenues	117.9	116.7	121.2
Latin America [Member]
Revenue from External Customer [Line Items]
Revenues	111.1	105.6	108.3
Foreign [Member]
Revenue from External Customer [Line Items]
Revenues	$ 765.8	$ 734.0	$ 741.3

New Accounting Standards (Notes)

12 Months Ended

Dec. 28, 2019

Accounting Policies [Abstract]

New Accounting Standards [Text Block]

NEW ACCOUNTING STANDARDS

The Financial Accounting Standards Board (“FASB”) issued the following ASUs that have been adopted by the Company during fiscal 2019. The following is a summary of the effect of adoption of these new standards.



Standard	Description	Effect on the Financial Statements or Other Significant Matters
ASU 2016-02, Leases (as amended by ASUs 2018-01, 2018-10, 2018-11, 2018-20 and 2019-01)	The core principle is that a lessee shall recognize a lease liability in its statement of financial position for the present value of all future lease payments. A lessee would also recognize a right-of-use asset representing its right to use the underlying asset for the lease term. Under a new transition method, a reporting entity will apply the new lease requirements as of the effective date and continue to report comparative periods presented in the financial statements under GAAP in effect during the comparable periods.	The Company adopted ASU 2016-02 at the beginning of the first quarter using the modified retrospective approach and elected the package of practical expedients for its existing leases. The Company recognized a lease liability of $178.1 million, which was equal to the present value of the future lease payments for its portfolio of operating leases. The Company recognized a right-of-use asset of $157.3 million, which was equal to the lease liabilities adjusted for the balance of accrued rent and unamortized lease incentives as of the effective date. The adoption of ASU 2016-02 did not have a material impact on the Company’s results of operations or cash flows. See Note 10 for additional information on the adoption of this standard and disclosures regarding the Company’s leases.

The FASB has issued the following ASUs that have not yet been adopted by the Company. The following is a summary of the planned adoption period and anticipated impact of adopting these new standards.

Earnings Per Share Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Earnings Per Share [Line Items]
Anti-dilutive stock options	133,505	25,230	1,753,869
Preferred stock, shares authorized	2,000,000
Preferred stock, par or stated value Per Share	$ 1
Purchase of common stock for treasury	$ (319.2)	$ (174.7)	$ (42.3)
Payments for Repurchase of Equity	16.9	8.8	5.5
Common stock repurchase program, authorized amount	$ 400.0
Series A junior participating preferred stock [Member]
Earnings Per Share [Line Items]
Preferred stock, shares authorized	150,000
Series B junior participating preferred stock [Member]
Earnings Per Share [Line Items]
Preferred stock, shares authorized	500,000
Treasury Stock [Member]
Earnings Per Share [Line Items]
Purchase of common stock for treasury	$ (319.2)	$ (174.7)	$ (42.3)

Income Taxes - Provisions for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Current expense:
Federal	$ 10.6	$ 6.7	$ 48.1
State	0.5	2.4	1.9
Foreign	12.5	10.9	14.0
Deferred expense (credit):
Federal	(5.8)	2.1	(72.0)
State	(2.0)	3.3	(0.2)
Foreign	1.2	1.7	(1.7)
Total provision for income taxes	$ 17.0	$ 27.1	$ (9.9)

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 28, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Unvested Restricted Shares Issued Under Stock Award Plans

A summary of the unvested Restricted Awards and Performance Awards is as follows:



	Restricted Awards		Weighted- Average Grant Date Fair Value		Performance Awards		Weighted- Average Grant Date Fair Value
Unvested at December 31, 2016	1,947,378		$	21.24	1,730,886		$	21.86
Granted	762,078		23.06		511,722		25.14
Vested	(445,939	)	22.03		(173,894	)	27.01
Forfeited	(238,445	)	21.66		(378,046	)	25.04
Unvested at December 30, 2017	2,025,072		$	21.70	1,690,668		$	21.54
Granted	609,276		31.81		384,657		35.10
Vested	(560,263	)	22.93		(229,023	)	26.64
Forfeited	(153,712	)	23.81		(215,284	)	26.18
Unvested at December 29, 2018	1,920,373		$	24.38	1,631,018		$	23.42
Granted	554,092		34.73		370,830		37.10
Vested	(681,938	)	24.63		(654,021	)	17.46
Forfeited	(173,611	)	28.47		(220,725	)	19.74
Unvested at December 28, 2019	1,618,916		$	27.36	1,127,102		$	31.94

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The estimated weighted-average fair value for each option granted was $9.07, $8.20 and $5.50 per share for fiscal years 2019, 2018 and 2017, respectively, with the following weighted-average assumptions.



	Fiscal Year
	2019		2018		2017
Expected market price volatility ⁽¹⁾	29.6	%	29.6	%	29.3	%
Risk-free interest rate ⁽²⁾	2.5	%	2.5	%	1.7	%
Dividend yield ⁽³⁾	1.0	%	0.8	%	1.0	%
Expected term ⁽⁴⁾	4 years		4 years		4 years


⁽¹⁾	Based on historical volatility of the Company’s common stock. The expected volatility is based on the daily percentage change in the price of the stock over the four years prior to the grant.


⁽²⁾	Represents the U.S. Treasury yield curve in effect for the expected term of the option at the time of grant.


⁽³⁾	Represents the Company’s estimated cash dividend yield for the expected term.

⁽⁴⁾

Represents the period of time that options granted are expected to be outstanding. As part of the determination of the expected term, the Company concluded that all employee groups exhibit similar exercise and post-vesting termination behavior.

Summary of Transactions Under Stock Option Plans

A summary of the stock option transactions is as follows:



	Shares Under Option		Weighted-Average Exercise Price		Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (In millions)
Outstanding at December 31, 2016	7,493,662		$	19.55	6.4	$	28.7
Granted	93,274		23.85
Exercised	(1,267,269	)	17.15
Canceled	(230,003	)	21.37
Outstanding at December 30, 2017	6,089,664		$	20.05	5.8	$	72.1
Granted	28,171		31.85
Exercised	(1,359,387	)	17.69
Canceled	(56,446	)	17.12
Outstanding at December 29, 2018	4,702,002		$	20.83	5.2	$	54.5
Granted	25,471		34.81
Exercised	(681,389	)	17.87
Canceled	(12,977	)	23.97
Outstanding at December 28, 2019	4,033,107		$	21.41	4.4	$	49.8
Unvested at December 28, 2019	(44,250	)
Exercisable at December 28, 2019	3,988,857		$	21.27	4.4	$	49.7

Divestitures (Notes)

12 Months Ended

Dec. 28, 2019

Divestitures [Abstract]

Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]

DIVESTITURES

In the third quarter of fiscal 2017, the Company entered into a global, multi-year licensing agreement of the Stride Rite^® brand. As part of this agreement, the Company agreed to sell inventory and certain other assets and liabilities related to the Stride Rite^® brand and provide certain transition services to the licensee. The Company received cash of $16.9 million for the sale of these assets and liabilities and recognized a gain of $0.2 million, which is included in the selling, general and administrative expenses line item on the consolidated statement of operations . The assets and liabilities sold, which were reported in the Wolverine Boston Group, are as follows:



(In millions)	Book Value
Inventory	$	17.1
Prepaid expenses and other current assets	1.4
Other accrued liabilities	(1.8		)
Total assets and liabilities sold	$	16.7

In the third quarter of fiscal 2017, the Company sold certain intangible and other assets related to the Sebago^® brand. As part of this agreement, the buyer acquired the intellectual property rights to design, manufacture and market all products under the Sebago^® brand. The Company received cash of $14.3 million and recognized a gain on sale of $8.4 million, net of transaction costs, which is included in the selling, general and administrative expenses line item on the consolidated statement of operations. The assets sold, which were reported in the Wolverine Michigan Group, are as follows:



(In millions)	Book Value
Indefinite-lived intangibles	5.4
Amortizable intangibles	0.2
Total assets sold	$	5.6

In the third quarter of fiscal 2017, the Company sold its Department of Defense contract business, which comprised an owned manufacturing facility, the transfer of employees and certain associated assets. The goodwill allocated to the sale of the business was nominal. The Company received cash of $7.8 million and recognized a loss on sale of $1.6 million, net of transaction costs, which is included in the selling, general and administrative expenses line item on the consolidated statement of operations. The assets sold, which were reported in the Wolverine Michigan Group and Other segments, are as follows:



(In millions)	Book Value
Inventory	$	5.6
Prepaid expenses and other current assets	0.5
Property, plant and equipment	3.0
Total assets sold	$	9.1

Business Segments - Additional Information (Detail)	12 Months Ended
Business Segments - Additional Information (Detail)	Dec. 28, 2019
Segment Reporting [Abstract]
Percentage of sources of footwear products from unrelated suppliers in foreign country region	100.00%

New Accounting Standards (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease right-of-use assets	$ 160.8	$ 0.0
Operating Lease, Liability	$ 181.3
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease right-of-use assets		157.3
Operating Lease, Liability		$ 178.1

Business Segments

12 Months Ended

Dec. 28, 2019

Segment Reporting [Abstract]

Business Segments

BUSINESS SEGMENTS

The Company’s portfolio of brands is organized into the following two operating segments, which the Company has determined to be reportable operating segments. During the first quarter of 2019, the brands that were formerly aligned with the Wolverine Outdoor & Lifestyle Group and Wolverine Heritage Group were realigned into a new operating segment, the Wolverine Michigan Group. The change was to align our brands under key leadership to best support innovation and efficiency. All prior period disclosures have been retrospectively adjusted to reflect these new reportable operating segments.


•	Wolverine Michigan Group, consisting of Merrell^® footwear and apparel, Cat^® footwear, Wolverine^® footwear and apparel, Chaco^® footwear, Hush Puppies^® footwear and apparel, Bates^® uniform footwear, Harley-Davidson^® footwear and Hytest^® safety footwear; and


•	Wolverine Boston Group, consisting of Sperry^® footwear and apparel, Saucony^® footwear and apparel, Keds^® footwear and apparel, and the Kids footwear business, which includes the Stride Rite^® licensed business, as well as kids' footwear offerings from Saucony^®, Sperry^®, Keds^®, Merrell^®, Hush Puppies^® and Cat^®.

The reportable segments are engaged in designing, manufacturing, sourcing, marketing, licensing and distributing branded footwear, apparel and accessories. Revenue for the reportable operating segments includes revenue from the sale of branded footwear, apparel and accessories to third-party customers; revenue from third-party licensees and distributors; and revenue from the Company’s consumer-direct businesses.

The Company also reports “Other” and “Corporate” categories. The Other category consists of the Company’s leather marketing operations, sourcing operations that include third-party commission revenues and multi-branded consumer-direct retail stores. The Corporate category consists of unallocated corporate expenses, organizational transformation costs, reorganization costs, restructuring and other related costs, impairment of intangible assets, environmental and other related costs, a foreign currency remeasurement gain recorded in the second quarter of fiscal 2018 and a pension settlement loss related to the Company's purchase of pension annuity contracts in the fourth quarter of fiscal 2018. The Company’s operating segments are determined based on how the Company internally reports and evaluates financial information used to make operating decisions. The operating segment managers all report directly to the chief operating decision maker.

Company management uses various financial measures to evaluate the performance of the reportable operating segments. The following is a summary of certain key financial measures for the respective fiscal periods indicated.



	Fiscal Year
(In millions)	2019			2018			2017
Revenue:
Wolverine Michigan Group	$	1,299.7		$	1,272.2		$	1,267.8
Wolverine Boston Group	910.9			895.5			988.8
Other	63.1			71.5			93.4
Total	$	2,273.7		$	2,239.2		$	2,350.0
Operating profit (loss):
Wolverine Michigan Group	$	244.8		$	257.6		$	243.7
Wolverine Boston Group	153.8			157.5			153.6
Other	2.9			3.1			5.2
Corporate	(230.5		)	(166.3		)	(370.9		)
Total	$	171.0		$	251.9		$	31.6
Depreciation and amortization expense:
Wolverine Michigan Group	$	2.4		$	2.7		$	2.9
Wolverine Boston Group	3.3			3.3			3.7
Other	2.4			3.1			3.5
Corporate	24.6			22.4			27.1
Total	$	32.7		$	31.5		$	37.2
Capital expenditures:
Wolverine Michigan Group	$	2.2		$	3.1		$	0.5
Wolverine Boston Group	5.7			1.2			1.6
Other	2.2			1.8			1.8
Corporate	24.3			15.6			28.5
Total	$	34.4		$	21.7		$	32.4



(In millions)	December 28, 2019		December 29, 2018
Total assets:
Wolverine Michigan Group	$	773.8	$	626.8
Wolverine Boston Group	1,354.8		1,282.2
Other	38.4		50.0
Corporate	313.0		224.1
Total	$	2,480.0	$	2,183.1
Goodwill:
Wolverine Michigan Group	$	144.4	$	143.8
Wolverine Boston Group	294.5		280.6
Total	$	438.9	$	424.4

Geographic dispersion of revenue from external customers, based on shipping destination is as follows:



	Fiscal Year
(In millions)	2019		2018		2017
United States	$	1,507.9	$	1,505.2	$	1,608.7
Foreign:
Europe, Middle East and Africa	343.1		325.7		322.4
Asia Pacific	193.7		186.0		189.4
Canada	117.9		116.7		121.2
Latin America	111.1		105.6		108.3
Total from foreign territories	765.8		734.0		741.3
Total revenue	$	2,273.7	$	2,239.2	$	2,350.0

The location of the Company’s tangible long-lived assets, which comprises property, plant and equipment and lease right-of-use assets, is as follows:



(In millions)	December 28, 2019		December 29, 2018		December 30, 2017
United States	$	247.2	$	117.1	$	122.4
Foreign countries	54.6		13.8		14.3
Total	$	301.8	$	130.9	$	136.7

The Company does not believe that it is dependent upon any single customer because no customer accounts for more than 10% of consolidated revenue in any year.

During fiscal 2019, the Company sourced 100% of its footwear products and apparel and accessories from third-party suppliers, located primarily in the Asia Pacific region. While changes in suppliers could cause delays in manufacturing and a possible loss of sales, management believes that other suppliers could provide similar products on comparable terms.

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Operating Loss Carryforwards [Line Items]
Document Period End Date	Dec. 28, 2019
Deferred tax assets, Valuation Allowance	$ 17.6	$ 17.8
Tax credit carryforwards	10.4
Portion of the unrecognized tax benefits if recognized, reduction of annual effective tax rate	6.5	7.1
Interest accrued related to unrecognized tax benefits	1.5	2.4
Deferred Tax Liabilities, Tax Deferred Income	1.2	$ 0.6
Undistributed Earnings of Foreign Subsidiaries	272.1
Foreign country [Member]
Operating Loss Carryforwards [Line Items]
Foreign net operating loss carryforwards	27.3
Tax credit carryforwards	2.9
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Foreign net operating loss carryforwards	161.4
Deferred Tax Asset, State [Member]
Operating Loss Carryforwards [Line Items]
Change in the total valuation allowance	(0.5)
Net Operating Loss Carryforwad, State and Local [Member]
Operating Loss Carryforwards [Line Items]
Change in the total valuation allowance	(1.3)
Net Operating Losses and Tax Credits, Foreign [Member]
Operating Loss Carryforwards [Line Items]
Change in the total valuation allowance	$ 1.0

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Statement of Financial Position [Abstract]
Allowances, accounts receivable	$ 26.7	$ 26.6
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	320,000,000	320,000,000
Common stock, shares issued, including treasury shares	108,329,250	107,609,206
Treasury stock, shares	27,181,512	15,905,681

Revenue From Contracts With Customers (Tables)

12 Months Ended

Dec. 28, 2019

Revenue From Contracts With Customers [Abstract]

Disaggregation of Revenue [Table Text Block]

The wholesale channel includes royalty revenues, which operates in a similar manner due to similar oversight and management, customer base, the performance obligation (footwear and apparel goods) and point in time completion of the performance obligation.



	Fiscal Year
(in millions)	2019		2018		2017
Wolverine Michigan Group:
Wholesale	$	1,134.9	$	1,129.2	$	1,144.3
Consumer-direct	164.8		143.0		123.5
Total	1,299.7		1,272.2		1,267.8
Wolverine Boston Group:
Wholesale	743.4		762.0		814.5
Consumer-direct	167.5		133.5		174.3
Total	910.9		895.5		988.8
Other:
Wholesale	57.9		64.1		74.3
Consumer-direct	5.2		7.4		19.1
Total	63.1		71.5		93.4
Total revenue	$	2,273.7	$	2,239.2	$	2,350.0

Contract with Customer, Asset and Liability [Table Text Block]

The Company’s contract balances are as follows:



(In millions)	December 28, 2019		December 29, 2018
Product returns reserve	$	11.4	$	13.6
Customer markdowns reserve	4.4		4.0
Other sales incentives reserve	2.3		2.3
Customer rebates liability	12.0		12.8
Customer advances liability	7.2		3.8

Business Acquisitions Business Acquisitions Schedule of Consideration Transferred (Details) $ in Millions	12 Months Ended
	Dec. 28, 2019 USD ($)
Business Combinations [Abstract]
Cash paid	$ 15.1
Extinguishment of Sportlab’s accounts payable balance	4.6
Contingent consideration	5.5
Total purchase consideration	$ 25.2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 28, 2019
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations Wolverine World Wide, Inc. (the “Company”) is a leading designer, marketer and licensor of a broad range of quality casual footwear and apparel; performance outdoor and athletic footwear and apparel; kids' footwear; industrial work shoes, boots and apparel; and uniform shoes and boots. The Company’s portfolio of owned and licensed brands includes: Bates^®, Cat^®, Chaco^®, Harley-Davidson^®, Hush Puppies^®, Hytest^®, Keds^®, Merrell^®, Saucony^®, Sperry^®, Stride Rite^® and Wolverine^®. Licensing and distribution arrangements with third parties extend the global reach of the Company’s brand portfolio. The Company also operates a consumer-direct division to market both its own brands and branded footwear and apparel from other manufacturers, as well as a leathers division that markets Wolverine Performance Leathers™.
Principles of Consolidation	Principles of Consolidation and Basis of Presentation The consolidated financial statements include the accounts of Wolverine World Wide, Inc. and its majority-owned subsidiaries (collectively, the “Company”). All intercompany accounts and transactions have been eliminated in consolidation.
Fiscal Year	Fiscal Year The Company’s fiscal year is the 52- or 53-week period that ends on the Saturday nearest to December 31. Fiscal years 2019, 2018 and 2017 all had 52 weeks.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Revenue Recognition	Revenue Recognition The Company recognizes revenue in accordance with FASB ASC Topic 606, Revenue from Contracts with Customers. Revenue is recognized upon the transfer of promised goods or services to customers, in an amount that reflects the expected consideration to be received in exchange for those goods or services. The Company identifies the performance obligation in the contract, determines the transaction price, allocates the transaction price to the performance obligations and recognizes revenue upon completion of the performance obligation. Control of the Company's goods and services, and associated fixed revenue, are transferred to customers at a point in time. The Company’s contract revenue consist of wholesale revenue and consumer-direct revenue. Wholesale revenue is recognized for products sourced by the Company when control transfers to the customer generally occurring upon the shipment or delivery of branded products by or to the customer. Consumer-direct includes eCommerce revenue that is recognized for products sourced by the Company when control transfers to the customer once the related goods have been shipped and retail store revenue recognized at time of sale. The shipment of goods, or point of purchase for retail store sales, was evaluated to best represent when control transfers based on the Company’s right of payment for the goods, the customer’s legal title to the asset, the transfer of physical possession and the customer having the risks and rewards of the goods. Revenue is recognized net of any taxes collected from customers, which are subsequently remitted to governmental authorities. Shipping and handling costs that are charged to and reimbursed by a customer are recognized as revenue, while the related expenses incurred by the Company are recorded as cost of goods sold. The Company has elected the practical expedient to treat shipping and handling activities that occur after control of the goods transfers to the customer as fulfillment activities. Payment terms for the Company's revenue vary by sales channel. Standard credit terms apply to the Company's wholesale receivables, while payment is rendered at the time of sale within the consumer-direct channel. The timing of revenue recognition, billings and cash collections results in billed accounts receivable (contract assets), and customer advances (contract liabilities) on the consolidated balance sheets. Generally, billing occurs subsequent to revenue recognition resulting in contract assets. See Note 6 for additional information.
Cost of Goods Sold	Cost of Goods Sold Cost of goods sold includes the actual product costs, including inbound freight charges and certain outbound freight charges, purchasing, sourcing, inspection and receiving costs. Warehousing costs are included in selling, general and administrative expenses.
Advertising Costs	Advertising Costs Advertising costs are expensed as incurred, except for certain materials that are expensed the first time that the advertising takes place. Advertising expenses were $119.4 million, $120.8 million and $107.1 million for fiscal years 2019, 2018 and 2017, respectively. Prepaid advertising totaled $3.7 million and $1.5 million as of December 28, 2019 and December 29, 2018, respectively.
Cash Equivalents	Cash Equivalents Cash equivalents include highly liquid investments with an original maturity of three months or less. Cash equivalents are stated at cost, which approximates market.
Allowance for Uncollectible Accounts	Allowance for Uncollectible Accounts The Company maintains an allowance for uncollectible accounts receivable for estimated losses resulting from its customers’ failure to make required payments. Company management evaluates the allowance for uncollectible accounts receivable based on a review of current customer status and historical collection experience.
Inventories	Inventories The Company values its inventory at the lower of cost or net realizable value. Cost is determined by the LIFO method for certain domestic finished goods inventories. Cost is determined using the FIFO method for all raw materials, work-in-process and finished goods inventories in foreign countries and certain domestic finished goods inventories. The average cost of inventory is used for finished goods inventories of the Company’s consumer-direct business. The Company has applied these inventory cost valuation methods consistently from year to year. The Company reduces the carrying value of its inventories to the lower of cost or net realizable value for excess or obsolete inventories based upon assumptions about future demand and market conditions. If the Company were to determine that the estimated realizable value of its inventory is less than the carrying value of such inventory, the Company would provide a reserve for such difference as a charge to cost of sales. If actual market conditions are different from those projected, adjustments to those inventory reserves may be required. The adjustments would increase or decrease the Company’s cost of sales and net income in the period in which they were realized or recorded. Inventory quantities are verified at various times throughout the year by performing physical inventory counts and subsequently comparing those results to perpetual inventory balances. If the Company determines that adjustments to the inventory quantities are appropriate, an adjustment to the Company’s cost of goods sold and inventory is recorded in the period in which such determination was made.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated on the basis of cost and include expenditures for buildings, leasehold improvements, furniture and fixtures, material handling systems, equipment and computer hardware and software. Normal repairs and maintenance are expensed as incurred. Depreciation of property, plant and equipment is computed using the straight-line method. The depreciable lives range from 14 to 20 years for buildings, from 5 to 15 years for leasehold improvements, from 3 to 10 years for furniture, fixtures and equipment and from 3 to 5 years for software.
Deferred Financing Costs	Deferred Financing Costs Deferred financing costs represent commitment fees, legal and other third-party costs associated with obtaining commitments for financing that result in a closing of such financings for the Company. Deferred financing costs related to fixed term borrowings are recorded as a reduction of long-term debt in the consolidated balance sheet. Deferred financing costs related to revolving credit facilities are recorded as an other noncurrent asset in the consolidated balance sheet. These costs are amortized into earnings through interest expense over the terms of the respective agreements. Costs incurred in seeking financing transactions that do not close are expensed in the period in which it is determined that the financing will not close.
Goodwill and Other Intangibles	Goodwill and Other Intangibles Goodwill represents the excess of the purchase price over the fair value of net tangible and identifiable intangible assets of acquired businesses. Indefinite-lived intangibles include trademarks and trade names. Goodwill and intangible assets deemed to have indefinite lives are not amortized, but are subject to impairment tests at least annually. The Company reviews the carrying amounts of goodwill and indefinite-lived intangible assets by reporting unit at least annually, or when indicators of impairment are present, to determine if such assets may be impaired. The Company includes assumptions about expected future operating performance as part of a discounted cash flow analysis to estimate fair value. If the carrying value of these assets is not recoverable, based on the discounted cash flow analysis, management performs the next step, which compares the fair value of the reporting unit to the carrying value of the tangible and intangible net assets of the reporting units. Goodwill is considered impaired if the recorded value of the tangible and intangible net assets exceeds the fair value of the reporting unit. The Company may first assess qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying value. The Company would not be required to quantitatively determine the fair value of the indefinite-lived intangible unless the Company determines, based on the qualitative assessment, that it is more likely than not that its fair value is less than the carrying value. The Company may skip the qualitative assessment and quantitatively test indefinite-lived intangibles by comparison of the individual carrying values to the fair values. Future cash flows of the individual indefinite-lived intangible assets are used to measure their fair value after consideration by management of certain assumptions, such as forecasted growth rates and cost of capital, which are derived from internal projections and operating plans. The Company performs its annual testing for goodwill and indefinite-lived intangible asset impairment at the beginning of the fourth quarter of the fiscal year. See Note 4 for information related to the results of the Company's annual test.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or an asset group may not be recoverable. Each impairment test is based on a comparison of the carrying amount of the asset or asset group to the future undiscounted net cash flows expected to be generated by the asset or asset group. If such assets are considered to be impaired, the impairment amount to be recognized is the amount by which the carrying value of the assets exceeds their fair value.
Environmental Cost, Expense Policy [Policy Text Block]	Environmental The Company establishes a reserve for estimated environmental remediation costs based upon the evaluation of currently-available facts with respect to each individual site. The costs are recorded on an undiscounted basis when they are probable and reasonably estimable, generally no later than the completion of feasibility studies, the Company’s commitment to a plan of action, or approval by regulatory agencies. Liabilities for estimated costs of environmental remediation are based primarily upon third-party environmental studies, other internal analysis and the extent of the contamination and the nature of required remedial actions at each site. The Company records adjustments to the estimated costs if there are changes in the scope of the required remediation activity, extent of contamination, governmental regulations or remediation technologies. Environmental costs relating to existing conditions caused by past operations that do not contribute to current or future revenues are expensed as incurred. Assets related to potential recoveries from other responsible parties are recognized when a definitive agreement is reached and collection of cash is reasonably certain. Recoveries of covered losses under insurance policies are recognized only when realization of the claim is deemed probable.
Retirement Benefits	Retirement Benefits The determination of the obligation and expense for retirement benefits is dependent on the selection of certain actuarial assumptions used in calculating such amounts. These assumptions include, among others, the discount rate, expected long-term rate of return on plan assets, mortality rates and rates of increase in compensation. These assumptions are reviewed with the Company’s actuaries and updated annually based on relevant external and internal factors and information, including, but not limited to, long-term expected asset returns, rates of termination, regulatory requirements and plan changes. See Note 13 for additional information. The Company has elected to measure its defined benefit plan assets and obligations as of December 31 of each year, regardless of the Company's actual fiscal year end date, which is the Saturday nearest to December 31.
Income Taxes	Income Taxes The provision for income taxes is based on the geographic dispersion of the earnings reported in the consolidated financial statements. A deferred income tax asset or liability is determined by applying currently-enacted tax laws and rates to the cumulative temporary differences between the carrying values of assets and liabilities for financial statement and income tax purposes. The Company records an increase in liabilities for income tax accruals associated with tax benefits claimed on tax returns but not recognized for financial statement purposes (unrecognized tax benefits). The Company recognizes interest and penalties related to unrecognized tax benefits through interest expense and income tax expense, respectively.
Foreign Currency	Foreign Currency For most of the Company’s international subsidiaries, the local currency is the functional currency. Assets and liabilities of these subsidiaries are translated into U.S. dollars at the year-end exchange rate. Operating statement amounts are translated at average exchange rates for each period. The cumulative translation adjustments resulting from changes in exchange rates are included in the consolidated balance sheets as a component of accumulated other comprehensive income (loss) in stockholders’ equity. Transaction gains and losses are included in the consolidated statements of operations and were not material for fiscal years 2019, 2018 and 2017.

Litigation and Contingencies - Royalty and Adverting Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Long-term Purchase Commitment [Line Items]
Advertising expense	$ 119.4	$ 120.8	$ 107.1
Licensing arrangements [Member]
Long-term Purchase Commitment [Line Items]
Royalty expense	2.3	2.2	2.3
Advertising expense	$ 3.6	$ 3.3	$ 3.2

Retirement Plans - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($)
Schedule Of Other Postretirement Benefits [Line Items]
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement	$ 0.0	$ 66.6
Cash surrender value of life insurance	66.8	64.4
Defined contribution plan cost recognized	5.2	4.5	$ 4.2
Defined contribution plan at foreign subsidiary	1.1	1.1	1.0
Deferred recognized compensation liability	0.9	1.1
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax	61.4	44.6
Accumulated Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Tax	(48.7)	(36.2)
Accumulated benefit obligations for all defined benefit pension plans and the SERP	378.4	319.1
Actuarial loss included in accumulated other comprehensive income (loss)	$ 6.6
Amortization of Unrecognized net actuarial losses exceeding certain corridors period	5 years
Settlement loss	$ 0.0	7.2	$ 0.0
Equity securities [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Target investment allocation	57.00%
Fixed income securities [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Target investment allocation	38.00%
Real Estate Investment [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Target investment allocation	5.00%
Pension [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Number Of Retirement Plans	2
Expected contributions to defined benefit plans		0.0
Defined Contribution Plan [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Number Of Retirement Plans	2
SERP [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Cash surrender value of life insurance	$ 59.6	$ 57.4
Expected contributions to defined benefit plans	$ 3.7

Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 28, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, plant and equipment consisted of the following:



(In millions)	December 28, 2019		December 29, 2018
Land	$	3.9	$	3.9
Buildings and leasehold improvements	123.2		108.8
Furniture, fixtures and equipment	136.8		162.5
Software	61.1		106.6
Gross cost	325.0		381.8
Less: accumulated depreciation	184.0		250.9
Property, plant and equipment, net	$	141.0	$	130.9

Financial Instruments and Risk Management (Derivative Notional Amounts) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Document Period End Date	Dec. 28, 2019
Foreign exchange contracts [Member] \| Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Notional Amounts	$ 246.3	$ 220.3
Foreign exchange contracts [Member] \| Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Notional Amounts	7.3	4.8
Interest rate swap [Member] \| Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Notional Amounts	$ 355.8	181.3
Cross Currency Interest Rate Contract [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Maturity Date	Sep. 01, 2021
Cross Currency Interest Rate Contract [Member] \| Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Notional Amounts	$ 79.8	$ 95.8
Minimum [Member] \| Interest rate swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Maturity Date	Jul. 13, 2020

Income Taxes - Summarizes Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Income Tax Disclosure [Abstract]
Beginning balance	$ 7.9	$ 9.3
Increases related to current year tax positions	1.6	0.8
Decreases related to prior year positions	(1.4)	(2.0)
Decreases relating to settlements with taxing authorities	(1.2)	0.0
Decrease due to lapse of statute	0.0	(0.2)
Ending balance	$ 6.9	$ 7.9

Accounts Receivable (Details) - USD ($) $ in Millions	12 Months Ended
Accounts Receivable (Details) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Sale Of Accounts Receivable, Maximum Amount Under Agreement	$ 150.0
Sale Of Accounts Receivable Percent Paid At Sale	90.00%
Accounts Receivable, Reduction Due To Sale	$ 33.9	$ 0.0
Accounts Receivable Sold	42.7	264.3	$ 558.3
Contractually Specified Servicing Fees, Amount	$ 0.2	$ 1.3	$ 2.1

Accumulated Other Comprehensive Income (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 28, 2019

Dec. 29, 2018

Dec. 30, 2017

Accumulated Other Comprehensive Income (Loss) [Line Items]

Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax

$ 0.9

$ 14.4

$ (16.0)

Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]

Accumulated other comprehensive income (loss), Beginning balance

(88.3)

(75.2)

Other comprehensive income (loss) before reclassifications

^[1]

(8.3)

(15.8)

Amounts reclassified from accumulated other comprehensive income (loss)

(7.2)

14.3

Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax

1.7

(3.5)

(5.5)

10.8

Effect Of New Accounting Principle In Period Of Adoption

(13.8)

^[1]

(5.0)

^[1]

5.9

^[2]

(8.1)

Accumulated other comprehensive income (loss), Ending Balance

(102.1)

(88.3)

(75.2)

Foreign currency translation adjustments [Member]

Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]

Accumulated other comprehensive income (loss), Beginning balance

(53.0)

(32.7)

Other comprehensive income (loss) before reclassifications

5.4

(20.3)

Amounts reclassified from accumulated other comprehensive income (loss)

0.0

Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax

0.0

0.0

Effect Of New Accounting Principle In Period Of Adoption

^[1]

5.4

(20.3)

^[2]

0.0

Accumulated other comprehensive income (loss), Ending Balance

(47.6)

(53.0)

(32.7)

Derivative [Member]

Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]

Accumulated other comprehensive income (loss), Beginning balance

0.9

(13.9)

Amounts reclassified from accumulated other comprehensive income (loss)

^[3]

(9.8)

3.8

Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax

2.2

(1.3)

(7.6)

2.5

Effect Of New Accounting Principle In Period Of Adoption

^[1]

(6.7)

16.9

^[2]

(2.1)

Accumulated other comprehensive income (loss), Ending Balance

(5.8)

0.9

(13.9)

Pension adjustments [Member]

Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]

Accumulated other comprehensive income (loss), Beginning balance

(36.2)

(28.6)

Other comprehensive income (loss) before reclassifications

(14.6)

(9.9)

Amounts reclassified from accumulated other comprehensive income (loss)

^[4]

2.6

10.5

Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax

(0.5)

(2.2)

2.1

8.3