Wolverine World Wide (WWW) 10-Q 5 Aug 21 2021 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jul. 03, 2021	Jul. 19, 2021
Document Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 3, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Registrant Name	WOLVERINE WORLD WIDE INC /DE/
Entity Central Index Key	0000110471
Current Fiscal Year End Date	--01-01
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		82,214,453
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Document Transition Report	false
Document Quarterly Report	true
Entity File Number	001-06024
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 Interactive Data Current	Yes
Entity Shell Company	false

Consolidated Condensed Statemen

Consolidated Condensed Statements of Operations and Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Income Statement [Abstract]
Revenue	$ 631.9	$ 349.1	$ 1,142.6	$ 788.4
Cost of goods sold	361.5	201.9	649.9	459.4
Gross profit	270.4	147.2	492.7	329
Selling, general and administrative expenses	201.8	143.6	376.2	299.7
Environmental and other related costs, net of recoveries	4.8	(3.9)	(5.4)	4.9
Operating profit	63.8	7.5	121.9	24.4
Other expenses:
Interest expense, net	9.7	10.5	19.3	18.3
Debt extinguishment and other costs	0	0.2	0	0.2
Other expense (income), net	0.1	(1.7)	2.9	(2.3)
Total other expenses	9.8	9	22.2	16.2
Earnings (loss) before income taxes	54	(1.5)	99.7	8.2
Income tax expense (benefit)	9.6	0.4	16.9	(2.7)
Net earnings (loss)	44.4	(1.9)	82.8	10.9
Less: net loss attributable to noncontrolling interests	(0.3)	(0.3)	(0.4)	(0.5)
Net earnings (loss) attributable to Wolverine World Wide, Inc.	$ 44.7	$ (1.6)	$ 83.2	$ 11.4
Net earnings (loss) per share (see Note 3):
Basic	$ 0.53	$ (0.02)	$ 0.99	$ 0.14
Diluted	$ 0.53	$ (0.02)	$ 0.98	$ 0.14
Comprehensive income (loss)	$ 49.8	$ (1.8)	$ 94.4	$ 0.4
Less: comprehensive loss attributable to noncontrolling interests	(0.1)	(0.2)	(0.5)	(1.6)
Comprehensive income (loss) attributable to Wolverine World Wide, Inc.	$ 49.9	$ (1.6)	$ 94.9	$ 2
Cash dividends declared per share	$ 0.10	$ 0.10	$ 0.20	$ 0.20

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020
Current assets:
Cash and cash equivalents	$ 345.8	$ 347.4	$ 422.6
Accounts receivable, less allowances: July 3, 2021: $26.3; January 2, 2021 $33.5; June 27, 2020: $38.2	372	268.3	263.8
Inventories:
Finished products, net	323.6	237.9	376.5
Raw materials and work-in-process, net	8.1	5.2	10
Total inventories	331.7	243.1	386.5
Prepaid expenses and other current assets	36.9	45.4	45.7
Total current assets	1,086.4	904.2	1,118.6
Noncurrent assets:
Property plant and equipment net of accumulated depreciation: July 3, 2021: $207.2; January 2, 2021: $197.2; June 27, 2020: $192.8	120.2	124.6	134.9
Lease right-of-use assets, net	134.6	142.5	152.4
Goodwill	443.6	442.4	435.6
Indefinite-lived intangibles	382.3	382.3	604.5
Amortizable intangibles, net	70.6	73	75.1
Deferred Income Tax Assets, Net	2	3.2	2.4
Other assets	63.9	65.2	65.9
Total assets	2,303.6	2,137.4	2,589.4
Current liabilities:
Accounts payable	279.2	185	154.9
Accrued salaries and wages	33.7	27	11.6
Other accrued liabilities	167.3	150	163.9
Lease liabilities	32.7	34	37.5
Current maturities of long-term debt	10	10	183.5
Borrowings under revolving credit agreements	0	0	125
Total current liabilities	522.9	406	676.4
Noncurrent liabilities:
Long-term debt, less current maturities	708.4	712.5	715.9
Accrued pension liabilities	145.9	147	109.4
Deferred Income Tax Liabilities, Net	37.6	35.5	86
Operating Lease, Liability, Noncurrent	119.3	130.3	139.2
Other liabilities	120.4	133.1	126.6
Stockholders’ equity:
Common Stock - par value $1, authorized 320,000,000 shares; shares issued (including shares in treasury): July 3, 2021: 111,382,593 shares; January 2, 2021: 110,426,769 shares; June 27, 2020: 110,006,517 shares	111.4	110.4	110
Additional paid-in capital	278.4	252.6	227.1
Retained earnings	1,159.6	1,093.3	1,258.3
Accumulated other comprehensive loss	(118.9)	(130.6)	(111.5)
Cost of shares in treasury: July 3, 2021: 29,166,422 shares; January 2, 2021: 28,285,274 shares; June 27, 2020: 28,146,537 shares	(797.3)	(764.3)	(759.9)
Total Wolverine World Wide, Inc. stockholders’ equity	633.2	561.4	724
Noncontrolling interest	15.9	11.6	11.9
Total stockholders’ equity	649.1	573	735.9
Total liabilities and stockholders’ equity	$ 2,303.6	$ 2,137.4	$ 2,589.4

Consolidated Condensed Balanc_2

Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020
Statement of Financial Position [Abstract]
Accounts receivable allowance	$ 26.3	$ 33.5	$ 38.2
Accumulated depreciation	$ (207.2)	$ (197.2)	$ (192.8)
Common stock, par value	$ 1	$ 1	$ 1
Common stock, shares authorized	320,000,000	320,000,000	320,000,000
Common stock, shares issued (including shares in treasury)	111,382,593	110,426,769	110,006,517
Treasury shares	29,166,422	28,285,274	28,146,537

Consolidated Condensed Statem_2

Consolidated Condensed Statements of Cash Flow - USD ($) $ in Millions	6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020
OPERATING ACTIVITIES
Net earnings	$ 82.8	$ 10.9
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	14.4	15.4
Deferred income taxes	1.2	(13.4)
Stock-based compensation expense	21.6	10.2
Pension and SERP expense	7	4.3
Debt Related Commitment Fees and Debt Issuance Costs	0	0.2
Environmental and other related costs, net of cash payments	(9.4)	34.2
Other	(1.6)	4.3
Changes in operating assets and liabilities:
Accounts receivable	(103.9)	64.5
Inventories	(89.1)	(41)
Other operating assets	10.3	6.3
Accounts payable	94.8	(45.9)
Income taxes payable	1.7	3.5
Other operating liabilities	21.9	(14.5)
Net cash provided by operating activities	51.7	39
INVESTING ACTIVITIES
Payments to Acquire Businesses, Net of Cash Acquired	0	(5.5)
Additions to property, plant and equipment	(6.7)	(6.6)
Payments to Acquire Equity Method Investments	0	3.5
Proceeds from Life Insurance Policy	0	25.6
Other	(1.4)	(0.8)
Net cash provided by (used in) investing activities	(8.1)	9.2
FINANCING ACTIVITIES
Repayments of Lines of Credit	0	(773)
Proceeds from Lines of Credit	0	538
Cash Received From Borrowings Against Company Owned Life Insurance Policies	0	24.5
Proceeds from Issuance of Debt	0	471
Payments on long-term debt	(5)	(5)
Payments of Debt Issuance Costs	0	6.4
Cash dividends paid	(16.9)	(17)
Purchases of common stock for treasury	(26.9)	(21)
Payment, Tax Withholding, Share-based Payment Arrangement	(13.1)	(19.9)
Proceeds from the exercise of stock options	12	2.1
Contributions from noncontrolling interests	4.8	1.8
Net cash provided by (used in) financing activities	(45.1)	195.1
Effect of foreign exchange rate changes	(0.1)	(1.3)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(1.6)	242
Cash and cash equivalents at beginning of the year	347.4	180.6
Cash and cash equivalents at end of the quarter	$ 345.8	$ 422.6

Consolidated Statement of Share

Consolidated Statement of Shareholders' Equity Statement - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Beginning Balance at Dec. 28, 2019	$ 778.4	$ 108.3	$ 233.4	$ 1,263.3	$ (102.1)	$ (736.2)	$ 11.7
Net earnings (loss) attributable to Wolverine World Wide, Inc.	11.4			11.4
Less: net loss attributable to noncontrolling interests	(0.5)						(0.5)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	10.9
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	9.4				(9.4)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest							(1.1)
Other Comprehensive Income (Loss), Net of Tax	(10.5)
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	(17)	1.5	(18.5)
Stock Issued During Period, Value, Stock Options Exercised	2.2	0.2	2
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	10.2		10.2
Dividends, Common Stock, Cash	(16.4)			(16.4)
Stock Issued During Period, Value, Treasury Stock Reissued	0.1		0			0.1
Purchase of Common Stock for Treasury	(21)					(21)
Treasury Stock, Value, Acquired, Cost Method	(2.8)					(2.8)
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	1.8						1.8
Ending Balance at Jun. 27, 2020	735.9	110	227.1	1,258.3	(111.5)	(759.9)	11.9
Beginning Balance at Mar. 28, 2020	735.9	109.2	219.8	1,268.1	(111.5)	(760)	10.3
Net earnings (loss) attributable to Wolverine World Wide, Inc.	(1.6)			(1.6)
Less: net loss attributable to noncontrolling interests	(0.3)						(0.3)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	(1.9)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0				0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest							0.1
Other Comprehensive Income (Loss), Net of Tax	0.1
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	(0.1)	0.8	(0.9)
Stock Issued During Period, Value, Stock Options Exercised	0.7	0	0.7
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	7.5		7.5
Dividends, Common Stock, Cash	(8.2)			(8.2)
Stock Issued During Period, Value, Treasury Stock Reissued	0.1		0			0.1
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	1.8						1.8
Ending Balance at Jun. 27, 2020	735.9	110	227.1	1,258.3	(111.5)	(759.9)	11.9
Beginning Balance at Jan. 02, 2021	573	110.4	252.6	1,093.3	(130.6)	(764.3)	11.6
Net earnings (loss) attributable to Wolverine World Wide, Inc.	83.2			83.2
Less: net loss attributable to noncontrolling interests	(0.4)						(0.4)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	82.8
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(11.7)				11.7
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest							(0.1)
Other Comprehensive Income (Loss), Net of Tax	11.6
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	(7)	0.4	(7.4)
Stock Issued During Period, Value, Stock Options Exercised	12.2	0.6	11.6
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	21.6		21.6
Dividends, Common Stock, Cash	(16.9)			(16.9)
Stock Issued During Period, Value, Treasury Stock Reissued	0.1		0			0.1
Purchase of Common Stock for Treasury	(26.9)					(26.9)
Treasury Stock, Value, Acquired, Cost Method	(6.2)					(6.2)
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	4.8						4.8
Ending Balance at Jul. 03, 2021	649.1	111.4	278.4	1,159.6	(118.9)	(797.3)	15.9
Beginning Balance at Apr. 03, 2021	625.1	111.2	265.7	1,123.1	(124.1)	(766.8)	16
Net earnings (loss) attributable to Wolverine World Wide, Inc.	44.7			44.7
Less: net loss attributable to noncontrolling interests	(0.3)						(0.3)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	44.4
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(5.2)				5.2
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest							0.2
Other Comprehensive Income (Loss), Net of Tax	5.4
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	(0.3)	0.1	(0.4)
Stock Issued During Period, Value, Stock Options Exercised	1.6	0.1	1.5
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	11.6		11.6
Dividends, Common Stock, Cash	(8.2)			(8.2)
Stock Issued During Period, Value, Treasury Stock Reissued	0.1		0			0.1
Purchase of Common Stock for Treasury	(26.9)					(26.9)
Treasury Stock, Value, Acquired, Cost Method	(3.7)					(3.7)
Ending Balance at Jul. 03, 2021	$ 649.1	$ 111.4	$ 278.4	$ 1,159.6	$ (118.9)	$ (797.3)	$ 15.9

Statement of Shareholders' Equi

Statement of Shareholders' Equity (Statement) - Parenthetical - $ / shares	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture	59,839	757,617	396,622	1,485,553
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	78,910	40,068	559,202	191,714
Cash dividends declared per share	$ 0.10	$ 0.10	$ 0.20	$ 0.20
Stock Issued During Period, Shares, Treasury Stock Reissued	803	1,701	1,968	2,768
Treasury Stock, Shares, Acquired	(716,027)	0	(716,027)	(877,624)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	(91,399)	(1,475)	(167,089)	(90,169)

Summary of Significant Accounti

Summary of Significant Accounting Policies (Notes)	6 Months Ended
	Jul. 03, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	BASIS OF PRESENTATION 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 ® . The Company’s products are marketed worldwide through owned operations, through licensing and distribution arrangements with third parties, and joint ventures. The Company also operates retail stores and eCommerce sites 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™ . Basis of Presentation The accompanying unaudited consolidated condensed financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to the Quarterly Report on Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for a complete presentation of the financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for fair presentation have been included in the accompanying financial statements. For further information, refer to the consolidated financial statements and footnotes included in the Company’s 2020 Form 10-K. The COVID-19 pandemic, the duration and severity of which is subject to uncertainty, has had and continues to have, a significant impact on the Company's business. Management's estimates and assumptions used in the preparation of the Company’s consolidated financial statements in accordance with U.S. GAAP contemplated both current and expected potential future impacts of COVID-19 on the Company’s business based on available information. Actual results may differ materially from management’s estimates. Fiscal Year The Company’s fiscal year is the 52 or 53-week period that ends on the Saturday nearest to December 31. Fiscal year 2021 has 52 weeks and fiscal year 2020 contained 53 weeks. The Company reports its quarterly results of operations on the basis of 13-week quarters for each of the first three fiscal quarters and a 13 or 14-week period for the fiscal fourth quarter. References to particular years or quarters refer to the Company’s fiscal years ended on the Saturday nearest to December 31 or the fiscal quarters within those years. Seasonality The Company’s business is subject to seasonal influences that could cause significant differences in revenue, earnings and cash flows from quarter to quarter. The COVID-19 pandemic resulted in changes in consumer behavior and preferences that changed this seasonal cadence. The Company expects the seasonal cadence that the Company experienced historically may continue to be affected as a result of these changes in consumer behavior and preferences resulting from the COVID-19 pandemic.

New Accounting Standards (Notes

New Accounting Standards (Notes)	6 Months Ended
	Jul. 03, 2021
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	NEW ACCOUNTING STANDARDS The Financial Accounting Standards Board (“FASB”) has issued the following Accounting Standards Update (“ASU”) that the Company has not yet adopted. The following is a summary of the new standard. Standard Description Effect on the Financial Statements or Other Significant Matters ASU 2020-04, Reference Rate Reform (Topic 848); Facilitation of the Effects of Reference Rate Reform on Financial Reporting (as amended by ASU 2021-01) Provides practical expedients for contract modifications and certain hedging relationships associated with the transition from reference rates that are expected to be discontinued. This guidance is applicable for the Company’s borrowing instruments under the amended senior credit facility, which use LIBOR as a reference rate, and is available for adoption effective immediately but is only available through December 31, 2022. The Company is evaluating the impact of the new standard on its consolidated financial statements.

Earnings Per Share (Notes)

Earnings Per Share (Notes)	6 Months Ended
	Jul. 03, 2021
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE The Company calculates earnings per share in accordance with FASB Accounting Standards Codification (“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 or dividend equivalents, whether paid or unpaid, are participating securities and must be included in the computation of earnings per share pursuant to the two-class method. The following table sets forth the computation of basic and diluted earnings per share. Quarter Ended Year-To-Date Ended (In millions, except per share data) July 3, June 27, July 3, June 27, Numerator: Net earnings (loss) attributable to Wolverine World Wide, Inc. $ 44.7 $ (1.6) $ 83.2 $ 11.4 Adjustment for earnings allocated to non-vested restricted common stock (0.7) (0.2) (1.4) (0.4) Net earnings (loss) used in calculating basic and diluted earnings per share $ 44.0 $ (1.8) $ 81.8 $ 11.0 Denominator: Weighted average shares outstanding 82.6 81.7 82.5 81.6 Adjustment for non-vested restricted common stock (0.1) (0.8) (0.2) (0.6) Shares used in calculating basic earnings per share 82.5 80.9 82.3 81.0 Effect of dilutive stock options 1.1 — 1.1 0.5 Shares used in calculating diluted earnings per share 83.6 80.9 83.4 81.5 Net earnings (loss) per share: Basic $ 0.53 $ (0.02) $ 0.99 $ 0.14 Diluted $ 0.53 $ (0.02) $ 0.98 $ 0.14 For the quarter and year-to-date ended July 3, 2021, 426,920 and 345,247 outstanding stock options, respectively, have not been included in the denominator for the computation of diluted earnings per share because they were anti-dilutive. For the quarter and year-to-date ended June 27, 2020, 1,955,425 and 1,183,907 outstanding stock options, respectively, have not been included in the denominator for the computation of diluted earnings per share because they were anti-dilutive.

Goodwill and Indefinite-Lived I

Goodwill and Indefinite-Lived Intangibles (Notes)	6 Months Ended
	Jul. 03, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Indefinite-Lived Intangibles	GOODWILL AND INDEFINITE-LIVED INTANGIBLES The changes in the carrying amount of goodwill are as follows: Year-To-Date Ended (In millions) July 3, June 27, Goodwill balance at beginning of the year $ 442.4 $ 438.9 Foreign currency translation effects 1.2 (3.3) Goodwill balance at end of the quarter $ 443.6 $ 435.6 The Company’s indefinite-lived intangible assets, which comprise trade names and trademarks, totaled $382.3 million as of July 3, 2021 and January 2, 2021, and $604.5 million as of June 27, 2020. In the fourth quarter of 2020, the Company recognized a $222.2 million impairment charge for the decline in the value of the Sperry ® trade name. The carrying value of the Company’s Sperry ® trade name was $296.0 million as of July 3, 2021. Based on the interim impairment assessment as of July 3, 2021, it was determined there were no triggering events of impairment for goodwill and indefinite-lived intangible assets. If the operating results for Sperry ® decline in future periods compared to current projections, there are changes in the assumptions and estimates the Company uses to value the Sperry ® trade name that adversely affect such value, such as an increase in the discount rate or in the assumed tax rate, or macroeconomic conditions deteriorate further due to the COVID-19 pandemic and adversely affect the value of the Company’s Sperry ® trade name balance, the Company may need to record a non-cash impairment charge.

Accounts Receivable (Notes)

Accounts Receivable (Notes)	6 Months Ended
	Jul. 03, 2021
Accounts Receivables [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 2021, subject to renewal. Under the agreement, up to $75.0 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 condensed 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. For receivables sold under the agreement, 90% of the stated amount is paid 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. Quarter Ended Year-To-Date Ended (In millions) July 3, 2021 June 27, 2020 July 3, 2021 June 27, 2020 Accounts receivable sold $ — $ — $ — $ 14.1 Fees charged $ — $ — $ — $ 0.1 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 condensed statements of cash flows. There were no amounts outstanding under this program as of July 3, 2021 and June 27, 2020, respectively.

Revenue From Contracts With Cus

Revenue From Contracts With Customers (Notes)	6 Months Ended
	Jul. 03, 2021
Revenue From Contracts With Customers [Abstract]
Revenue from Contract with Customer [Text Block]	REVENUE FROM CONTRACTS WITH CUSTOMERS Revenue Recognition and Performance Obligations The Company has agreements to license symbolic intellectual property with minimum guarantees or fixed consideration. The Company is due $20.9 million of remaining fixed transaction price under its license agreements as of July 3, 2021, which it expects to recognize per the terms of its contracts over the course of time through December 2024. The Company has elected to omit the remaining variable consideration under its license agreements given the Company recognizes revenue equal to what it has the right to invoice and that amount corresponds directly with the value to the customer of the Company’s performance to date. The Company provides disaggregated revenue by sales channel, including the wholesale and consumer-direct sales channels, reconciled to the Company’s reportable segments. The wholesale channel includes royalty revenues due to the similarity in the Company’s oversight and management, customer base, the performance obligation (footwear and apparel goods) and point in time completion of the performance obligation. Quarter Ended July 3, 2021 Quarter Ended June 27, 2020 (In millions) Wholesale Consumer-Direct Total Wholesale Consumer-Direct Total Wolverine Michigan Group $ 282.0 $ 72.4 $ 354.4 $ 149.0 $ 68.4 $ 217.4 Wolverine Boston Group 194.5 63.5 258.0 74.5 48.0 122.5 Other 18.2 1.3 19.5 8.8 0.4 9.2 Total $ 494.7 $ 137.2 $ 631.9 $ 232.3 $ 116.8 $ 349.1 Year-To-Date Ended July 3, 2021 Year-To-Date Ended June 27, 2020 (In millions) Wholesale Consumer-Direct Total Wholesale Consumer-Direct Total Wolverine Michigan Group $ 516.4 $ 135.7 $ 652.1 $ 363.3 $ 101.9 $ 465.2 Wolverine Boston Group 345.3 113.6 458.9 223.6 81.0 304.6 Other 29.4 2.2 31.6 17.5 1.1 18.6 Total $ 891.1 $ 251.5 $ 1,142.6 $ 604.4 $ 184.0 $ 788.4 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, 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 the fiscal periods presented related to the Company’s contract liabilities was nominal. The Company’s contract balances are as follows: (In millions) July 3, January 2, June 27, Product returns reserve $ 10.7 $ 15.6 $ 11.8 Customer markdowns reserve 3.3 3.7 5.7 Other sales incentives reserve 4.4 6.0 3.4 Customer rebates liability 14.2 13.4 11.0 Customer advances liability 7.1 8.2 5.8 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 affects net revenue and earnings in the period such variances become known.

Debt (Notes)

Debt (Notes)	6 Months Ended
	Jul. 03, 2021
Debt Disclosure [Abstract]
Debt	DEBT Total debt consists of the following obligations: (In millions) July 3, January 2, June 27, Term Loan A, due December 6, 2023 $ 175.0 $ 180.0 $ 187.5 Incremental Term Loan — — 171.0 Senior Notes, 5.000% interest, due September 1, 2026 250.0 250.0 250.0 Senior Notes, 6.375% interest, due May 15, 2025 300.0 300.0 300.0 Borrowings under revolving credit agreements — — 125.0 Unamortized deferred financing costs (6.6) (7.5) (9.1) Total debt $ 718.4 $ 722.5 $ 1,024.4 On May 5, 2020, the Company entered into a Second Amendment (the “Amendment”) which amended its senior credit facility, which had previously been amended and restated as of December 6, 2018 (as so amended by the Amendment, the “Amended Senior Credit Facility”). In connection with the Amendment, the Company borrowed $171.0 million in aggregate principal amount of an incremental term loan. The incremental term loan was fully repaid by the end of fiscal 2020. The Amended Senior Credit Facility also included 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, that remained unchanged as a result of the Amendment. The Amended Senior Credit Facility’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 Amended Senior Credit Facility are met. Term Loan A requires quarterly principal payments with a balloon payment due on December 6, 2023. As of July 3, 2021, the scheduled principal payments due under Term Loan A over the next 12 months total $10.0 million and are recorded as current maturities of long-term debt on the consolidated condensed 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 Amended Senior Credit Facility. The Revolving Credit Facility also includes a $50.0 million swingline subfacility and a $50.0 million letter of credit subfacility. The Company had outstanding letters of credit under the Revolving Credit Facility of $6.1 million, $6.1 million and $5.8 million as of July 3, 2021, January 2, 2021 and June 27, 2020, respectively. These outstanding 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 are, 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 1.000%, 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 2.000% (all capitalized terms used in this sentence are as defined in the Amended Senior Credit Facility). At July 3, 2021, Term Loan A had a weighted-average interest rate of 1.88%. The obligations of the Company pursuant to the Amended Senior Credit Facility 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 Amended Senior Credit Facility 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 Amended Senior Credit Facility 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 Amended Senior Credit Facility). As of July 3, 2021, the Company was in compliance with all covenants and performance ratios under the Amended Senior Credit Facility. On May 11, 2020 the Company issued $300.0 million aggregate principal amount of 6.375% Senior Notes due on May 15, 2025. Related interest payments are due semi-annually beginning on November 15, 2020. These senior notes are guaranteed by substantially all of the Company’s domestic subsidiaries. The Company has $250.0 million of senior notes outstanding that are due on September 1, 2026. These senior notes bear interest at 5.00% with the related interest payments due semi-annually and 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. There were no borrowings against this facility as of July 3, 2021, January 2, 2021 and June 27, 2020. The Company included in interest expense the amortization of deferred financing costs of $0.6 million and $1.3 million for the quarter and year-to-date ended July 3, 2021, respectively. The Company included in interest expense the amortization of deferred financing costs of $0.7 million and $1.1 million for the quarter and year-to-date ended June 27, 2020, respectively.

Leases (Notes)

Leases (Notes)	6 Months Ended
	Jul. 03, 2021
Leases [Abstract]
Lessee, Operating Leases [Text Block]	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. The following is a summary of the Company’s lease cost. Quarter Ended Year-To-Date Ended (In millions) July 3, June 27, July 3, June 27, Operating lease cost $ 8.0 $ 8.1 $ 16.1 $ 16.3 Variable lease cost 2.9 2.7 6.1 6.1 Short-term lease cost 0.2 0.2 0.5 0.5 Sublease income (1.5) (1.1) (3.3) (2.3) Total lease cost $ 9.6 $ 9.9 $ 19.4 $ 20.6 The following is a summary of the Company’s supplemental cash flow information related to leases. Quarter Ended Year-To-Date Ended (In millions) July 3, June 27, July 3, June 27, Cash paid for operating lease liabilities $ 9.0 $ 4.6 $ 18.1 $ 12.1 Operating lease assets obtained in exchange for lease liabilities 3.2 0.1 3.4 5.2 The Company did not enter into any real estate leases with commencement dates subsequent to July 3, 2021.

Financial Instruments and Risk

Financial Instruments and Risk Management (Notes)	6 Months Ended
	Jul. 03, 2021
Investments, All Other Investments [Abstract]
Financial Instruments and Risk Management	DERIVATIVE FINANCIAL INSTRUMENTS The Company follows FASB ASC Topic 815, Derivatives and Hedging ("ASC 815"), which requires that all derivative instruments be recorded on the consolidated condensed 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 538 days, 538 days, and 412 days as of July 3, 2021, January 2, 2021 and June 27, 2020, respectively. If, in the future, the 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) within stockholders’ equity. During the quarter ended June 27, 2020, the Company reclassified $1.3 million to other income for foreign currency contracts that were no longer deemed highly effective. The Company had an interest rate swap arrangement to mitigate interest volatility with regard to variable rate borrowings under the Amended Senior Credit Facility. The interest rate swap exchanged floating rate for fixed rate interest payments without the exchange of the underlying notional amounts, and had been designated as cash flow hedge of the underlying debt. The arrangement was terminated during the fourth quarter of fiscal 2020. 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 accumulated other comprehensive income (loss), offsetting the currency translation adjustment related to the underlying net investment that is also recorded in accumulated other comprehensive income (loss). 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 of the foreign operations. The notional amounts of the Company’s derivative instruments are as follows: (Dollars in millions) July 3, January 2, June 27, Foreign exchange hedge contracts $ 293.9 $ 250.7 $ 161.1 Interest rate swap — — 314.6 Cross currency swap 79.8 79.8 79.8 The recorded fair values of the Company’s derivative instruments are as follows: (In millions) July 3, January 2, June 27, Financial assets: Foreign exchange hedge contracts $ 1.6 $ — $ 4.1 Financial liabilities: Foreign exchange hedge contracts $ (4.1) $ (8.8) $ (0.1) Interest rate swap — — (9.8) Cross currency swap (8.6) (10.8) (1.9)

Stock-Based Compensation (Notes

Stock-Based Compensation (Notes)	6 Months Ended
	Jul. 03, 2021
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION The Company recognized compensation expense of $11.6 million and $21.6 million, and related income tax benefits of $2.2 million and $4.2 million, for grants under its stock-based compensation plans for the quarter and year-to-date ended July 3, 2021, respectively. The Company recognized compensation expense of $7.5 million and $10.2 million, and related income tax benefits of $1.5 million and $2.0 million, for grants under its stock-based compensation plans for the quarter and year-to-date ended June 27, 2020, respectively. The Company grants restricted stock or units (“restricted awards”), performance-based restricted stock or units (“performance awards”) and stock options under its stock-based compensation plans. The Company granted restricted awards and performance awards as follows: Year-To-Date Ended July 3, 2021 Year-To-Date Ended June 27, 2020 (In millions) Company Shares Issued Weighted-Average Grant Date Fair Value Company Shares Issued Weighted-Average Grant Date Fair Value Restricted Awards 588,275 $ 34.76 1,325,475 $ 22.28 Performance Awards 622,875 $ 35.73 346,584 $ 35.02

Retirement Plans (Notes)

Retirement Plans (Notes)	6 Months Ended
	Jul. 03, 2021
Retirement Benefits [Abstract]
Retirement Plans	RETIREMENT PLANS The following is a summary of net pension and Supplemental Executive Retirement Plan (“SERP”) expense recognized by the Company. Quarter Ended Year-To-Date Ended (In millions) July 3, June 27, July 3, June 27, Service cost pertaining to benefits earned during the period $ 1.7 $ 1.6 $ 3.5 $ 3.2 Interest cost on projected benefit obligations 3.2 3.6 6.4 7.1 Expected return on pension assets (4.9) (4.7) (9.8) (9.3) Net amortization loss 3.5 1.7 6.9 3.3 Net pension expense $ 3.5 $ 2.2 $ 7.0 $ 4.3 The non-service cost components of net pension expense is recorded in the Other expense (income), net line item on the consolidated condensed statements of operations and comprehensive income.

Income Taxes (Notes)

Income Taxes (Notes)	6 Months Ended
	Jul. 03, 2021
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company maintains management and operational activities in overseas subsidiaries, and its foreign earnings are taxed at rates that are different than the U.S. federal statutory income tax rate. A significant amount of the Company’s earnings are generated by its Canadian, European and Asian subsidiaries and, to a lesser extent, in jurisdictions that are not subject to income tax. 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 that amount of foreign unremitted earnings. 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. The Company’s effective tax rates for the quarter and year-to-date ended July 3, 2021 were 17.7% and 16.9%, respectively. The Company’s effective tax rates for the quarter and year-to-date ended June 27, 2020 were (28.3)% and (33.0)%, respectively. The lower effective tax rate for the prior year reflected larger discrete benefits than the current year. In addition, because pretax income in the current year is higher than the prior year, discrete adjustments had a lesser impact on the income tax rate than they had in the prior year. The Company is subject to periodic audits by U.S. federal, state, local and non-U.S. tax authorities. Currently, the Company is undergoing routine periodic audits in both U.S. federal, state, local and non-U.S. 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 significant to the consolidated condensed financial statements. 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 2017 in the majority of tax jurisdictions.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss) (Notes)	6 Months Ended
	Jul. 03, 2021
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Accumulated other comprehensive income (loss) 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 the quarters ended July 3, 2021 and June 27, 2020 is as follows: (In millions) Foreign Derivatives Pension Total Balance at March 28, 2020 $ (58.5) $ (5.6) $ (47.4) $ (111.5) Other comprehensive income (loss) before reclassifications (1) 2.6 (1.8) — 0.8 Amounts reclassified from accumulated other comprehensive income (loss) — (2.4) (2) 1.7 (3) (0.7) Income tax expense (benefit) — 0.3 (0.4) (0.1) Net reclassifications — (2.1) 1.3 (0.8) Net current-period other comprehensive income (loss) (1) 2.6 (3.9) 1.3 — Balance at June 27, 2020 $ (55.9) $ (9.5) $ (46.1) $ (111.5) Balance at April 3, 2021 $ (38.4) $ (14.9) $ (70.8) $ (124.1) Other comprehensive income (loss) before reclassifications (1) 2.5 (1.8) — 0.7 Amounts reclassified from accumulated other comprehensive income (loss) — 2.4 (2) 3.5 (3) 5.9 Income tax expense (benefit) — (0.6) (0.8) (1.4) Net reclassifications — 1.8 2.7 4.5 Net current-period other comprehensive income (loss) (1) 2.5 — 2.7 5.2 Balance at July 3, 2021 $ (35.9) $ (14.9) $ (68.1) $ (118.9) (1) Other comprehensive income (loss) is reported net of taxes and noncontrolling interest. (2) Amounts related to foreign currency derivatives 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 the interest rate swap and the cross-currency swap are included in interest expense. (3) Amounts reclassified are included in the computation of net pension expense. The change in accumulated other comprehensive income (loss) during the year-to-dates ended July 3, 2021 and June 27, 2020 is as follows: (In millions) Foreign Derivatives Pension Total Balance at December 28, 2019 $ (47.6) $ (5.8) $ (48.7) $ (102.1) Other comprehensive income (loss) before reclassifications (1) (8.3) (0.7) — (9.0) Amounts reclassified from accumulated other comprehensive income (loss) — (3.6) (2) 3.3 (3) (0.3) Income tax expense (benefit) — 0.6 (0.7) (0.1) Net reclassifications — (3.0) 2.6 (0.4) Net current-period other comprehensive income (loss) (1) (8.3) (3.7) 2.6 (9.4) Balance at June 27, 2020 $ (55.9) $ (9.5) $ (46.1) $ (111.5) Balance at January 2, 2021 $ (36.8) $ (20.3) $ (73.5) $ (130.6) Other comprehensive income (loss) before reclassifications (1) 0.9 3.2 — 4.1 Amounts reclassified from accumulated other comprehensive income (loss) — 3.0 (2) 6.9 (3) 9.9 Income tax expense (benefit) — (0.8) (1.5) (2.3) Net reclassifications — 2.2 5.4 7.6 Net current-period other comprehensive income (loss) (1) 0.9 5.4 5.4 11.7 Balance at July 3, 2021 $ (35.9) $ (14.9) $ (68.1) $ (118.9) (1) Other comprehensive income (loss) is reported net of taxes and noncontrolling interest. (2) Amounts related to foreign currency derivatives 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 the interest rate swap and the cross-currency swap are included in interest expense. (3) Amounts reclassified are included in the computation of net pension expense.

Fair Value Measurements (Notes)

Fair Value Measurements (Notes)	6 Months Ended
	Jul. 03, 2021
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 The following table sets forth financial assets and liabilities measured at fair value in the consolidated condensed 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) July 3, January 2, June 27, Financial assets: Derivatives $ 1.6 $ — $ 4.1 Financial liabilities: Derivatives $ (12.7) $ (19.6) $ (11.8) The fair value of foreign currency forward exchange contracts represents the estimated receipts or payments necessary to terminate the contracts. The interest rate swap was 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) July 3, January 2, June 27, Carrying value $ 718.4 $ 722.5 $ 1,024.4 Fair value 757.2 765.4 1,062.4 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).

Litigation and Contingencies (N

Litigation and Contingencies (Notes)	6 Months Ended
	Jul. 03, 2021
Commitments and Contingencies Disclosure [Abstract]
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™. 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. In January 2018, the Michigan Department of Environmental Quality (“MDEQ”, now known as the Michigan Department of Environment, Great Lakes, and Energy (“EGLE”)) 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 August 3, 2020, Michigan changed the standards for PFOA and PFOS in drinking water to 8 and 16 ppt, respectively, and set standards for four other PFAS substances. 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 the federal Resource Conservation and Recovery Act of 1976 (“RCRA”) and Parts 201 and 31 of the Michigan Natural Resources and Environmental Protection Act (“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 resulted in releases of PFAS at levels 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, NREPA, the Comprehensive Environmental Response, Compensation, and Liability Act (“CERCLA”) and common law nuisance. 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”). Under the Consent Decree, the Company agreed to pay for an extension of 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 Company also agreed 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. The Company’s activities under the Consent Decree are not materially impacted by the drinking water standards that became effective on August 3, 2020. 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 20, 2020, the Company and 3M Company entered into a settlement agreement resolving the 3M Action, under which 3M Company paid the Company a lump sum amount of $55.0 million during the first quarter of 2020. 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) with an effective date of February 1, 2018. The Order pertained to specified removal actions at the Company's Tannery and House Street sites, 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 completed almost all of the activities required by to the AOC, and anticipates completing the remaining activities in 2021 pursuant to approved work plans. 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 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 sued the Company seeking damages and cost recovery for property damage allegedly caused by the Company’s disposal of tannery waste containing PFAS (this suit 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 a defense against the Litigation Matters and coverage for remediation efforts undertaken by the Company and indemnity provided by the Company. The Company recognized certain recoveries from legacy insurance policies in 2020 and 2021, and continues pursing additional recoveries pursuant to its lawsuit. 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, intellectual property, and other environmental matters. 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 to the Company and reserves for liabilities that the Company has 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: Year-To-Date Ended (In millions) July 3, June 27, Remediation liability at beginning of the year $ 101.8 $ 124.4 Changes in estimate — — Amounts paid (8.7) (17.7) Remediation liability at the end of the quarter $ 93.1 $ 106.7 The reserve balance as of July 3, 2021 includes $24.8 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 $68.3 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 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 periods subsequent to July 3, 2021 are as follows: (In millions) 2021 2022 2023 2024 2025 Thereafter Minimum royalties $ 0.6 $ 1.8 $ — $ — $ — $ — Minimum advertising $ — $ 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 $0.7 million and $1.1 million for the quarter and year-to-date ended July 3, 2021, respectively. For the quarter and year-to-date ended June 27, 2020, the Company incurred royalty expense in accordance with these agreements of $0.4 million and $0.8 million, 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 $1.7 million and $2.7 million for the quarter and year-to-date ended July 3, 2021, respectively. For the quarter and year-to-date ended June 27, 2020, the Company incurred advertising expense in accordance with these agreements of $0.4 million and $1.0 million, respectively.

Business Segments (Notes)

Business Segments (Notes)	6 Months Ended
	Jul. 03, 2021
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 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, Saucony ® footwear and apparel, Keds ® footwear, 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 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, such as corporate employee costs, costs related to the COVID-19 pandemic and environmental and other related costs. The Company’s reportable segments are determined based on how the Company internally reports and evaluates financial information used to make operating decisions. Company management uses various financial measures to evaluate the performance of the reportable segments. The following is a summary of certain key financial measures for each reportable segment. Quarter Ended Year-to-Date Ended (In millions) July 3, June 27, July 3, June 27, Revenue: Wolverine Michigan Group $ 354.4 $ 217.4 $ 652.1 $ 465.2 Wolverine Boston Group 258.0 122.5 458.9 304.6 Other 19.5 9.2 31.6 18.6 Total $ 631.9 $ 349.1 $ 1,142.6 $ 788.4 Operating profit (loss): Wolverine Michigan Group $ 75.5 $ 38.4 $ 134.7 $ 81.5 Wolverine Boston Group 47.0 8.6 81.1 27.4 Other 1.2 0.4 1.5 0.3 Corporate (59.9) (39.9) (95.4) (84.8) Total $ 63.8 $ 7.5 $ 121.9 $ 24.4 (In millions) July 3, January 2, June 27, Total assets: Wolverine Michigan Group $ 702.4 $ 626.9 $ 714.4 Wolverine Boston Group 1,157.9 1,077.8 1,307.0 Other 43.4 31.4 37.0 Corporate 399.9 401.3 531.0 Total $ 2,303.6 $ 2,137.4 $ 2,589.4 Goodwill: Wolverine Michigan Group $ 145.7 $ 145.4 $ 143.2 Wolverine Boston Group 297.9 297.0 292.4 Total $ 443.6 $ 442.4 $ 435.6

Subsequent Events (Notes)

Subsequent Events (Notes)	6 Months Ended
	Jul. 03, 2021
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENTOn July 31, 2021, the Company entered into a definitive agreement to acquire 100% of the outstanding shares of Lady Leisure Investco Limited (the “Acquired Company”). The acquisition was completed on August 2, 2021 for $415.8 million, which is net of acquired cash of $7.1 million. The Acquired Company owns the Sweaty Betty brand and activewear business, a premium women’s activewear brand. The acquisition was funded with cash on hand and borrowings under the Company’s revolving credit facility.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jul. 03, 2021
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 ® . The Company’s products are marketed worldwide through owned operations, through licensing and distribution arrangements with third parties, and joint ventures. The Company also operates retail stores and eCommerce sites 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™ .
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated condensed financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions to the Quarterly Report on Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for a complete presentation of the financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for fair presentation have been included in the accompanying financial statements. For further information, refer to the consolidated financial statements and footnotes included in the Company’s 2020 Form 10-K. The COVID-19 pandemic, the duration and severity of which is subject to uncertainty, has had and continues to have, a significant impact on the Company's business. Management's estimates and assumptions used in the preparation of the Company’s consolidated financial statements in accordance with U.S. GAAP contemplated both current and expected potential future impacts of COVID-19 on the Company’s business based on available information. Actual results may differ materially from management’s estimates.
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 year 2021 has 52 weeks and fiscal year 2020 contained 53 weeks. The Company reports its quarterly results of operations on the basis of 13-week quarters for each of the first three fiscal quarters and a 13 or 14-week period for the fiscal fourth quarter. References to particular years or quarters refer to the Company’s fiscal years ended on the Saturday nearest to December 31 or the fiscal quarters within those years.
Seasonality	Seasonality The Company’s business is subject to seasonal influences that could cause significant differences in revenue, earnings and cash flows from quarter to quarter. The COVID-19 pandemic resulted in changes in consumer behavior and preferences that changed this seasonal cadence. The Company expects the seasonal cadence that the Company experienced historically may continue to be affected as a result of these changes in consumer behavior and preferences resulting from the COVID-19 pandemic.

Earnings Per Share (Policies)

Earnings Per Share (Policies)	6 Months Ended
	Jul. 03, 2021
Earnings Per Share [Abstract]
Earnings Per Share	The Company calculates earnings per share in accordance with FASB Accounting Standards Codification (“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 or dividend equivalents, whether paid or unpaid, are participating securities and must be included in the computation of earnings per share pursuant to the two-class method.

Leases (Policies)

Leases (Policies)	6 Months Ended
	Jul. 03, 2021
Leases [Abstract]
Lessee, Leases [Policy Text Block]	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.

Fair Value Measurements (Polici

Fair Value Measurements (Policies)	6 Months Ended
	Jul. 03, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements and Disclosures	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.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jul. 03, 2021
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share. Quarter Ended Year-To-Date Ended (In millions, except per share data) July 3, June 27, July 3, June 27, Numerator: Net earnings (loss) attributable to Wolverine World Wide, Inc. $ 44.7 $ (1.6) $ 83.2 $ 11.4 Adjustment for earnings allocated to non-vested restricted common stock (0.7) (0.2) (1.4) (0.4) Net earnings (loss) used in calculating basic and diluted earnings per share $ 44.0 $ (1.8) $ 81.8 $ 11.0 Denominator: Weighted average shares outstanding 82.6 81.7 82.5 81.6 Adjustment for non-vested restricted common stock (0.1) (0.8) (0.2) (0.6) Shares used in calculating basic earnings per share 82.5 80.9 82.3 81.0 Effect of dilutive stock options 1.1 — 1.1 0.5 Shares used in calculating diluted earnings per share 83.6 80.9 83.4 81.5 Net earnings (loss) per share: Basic $ 0.53 $ (0.02) $ 0.99 $ 0.14 Diluted $ 0.53 $ (0.02) $ 0.98 $ 0.14

Goodwill and Indefinite-Lived_2

Goodwill and Indefinite-Lived Intangibles (Tables)	6 Months Ended
	Jul. 03, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the carrying amount of goodwill are as follows: Year-To-Date Ended (In millions) July 3, June 27, Goodwill balance at beginning of the year $ 442.4 $ 438.9 Foreign currency translation effects 1.2 (3.3) Goodwill balance at end of the quarter $ 443.6 $ 435.6

Accounts Receivable (Tables)

Accounts Receivable (Tables)	6 Months Ended
	Jul. 03, 2021
Accounts Receivable [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	The following is a summary of the stated amount of accounts receivable that was sold as well as fees charged by the financial institution. Quarter Ended Year-To-Date Ended (In millions) July 3, 2021 June 27, 2020 July 3, 2021 June 27, 2020 Accounts receivable sold $ — $ — $ — $ 14.1 Fees charged $ — $ — $ — $ 0.1

Revenue From Contracts With C_2

Revenue From Contracts With Customers (Tables)	6 Months Ended
	Jul. 03, 2021
Revenue From Contracts With Customers [Abstract]
Disaggregation of Revenue [Table Text Block]	Quarter Ended July 3, 2021 Quarter Ended June 27, 2020 (In millions) Wholesale Consumer-Direct Total Wholesale Consumer-Direct Total Wolverine Michigan Group $ 282.0 $ 72.4 $ 354.4 $ 149.0 $ 68.4 $ 217.4 Wolverine Boston Group 194.5 63.5 258.0 74.5 48.0 122.5 Other 18.2 1.3 19.5 8.8 0.4 9.2 Total $ 494.7 $ 137.2 $ 631.9 $ 232.3 $ 116.8 $ 349.1 Year-To-Date Ended July 3, 2021 Year-To-Date Ended June 27, 2020 (In millions) Wholesale Consumer-Direct Total Wholesale Consumer-Direct Total Wolverine Michigan Group $ 516.4 $ 135.7 $ 652.1 $ 363.3 $ 101.9 $ 465.2 Wolverine Boston Group 345.3 113.6 458.9 223.6 81.0 304.6 Other 29.4 2.2 31.6 17.5 1.1 18.6 Total $ 891.1 $ 251.5 $ 1,142.6 $ 604.4 $ 184.0 $ 788.4
Contract with Customer, Asset and Liability [Table Text Block]	The Company’s contract balances are as follows: (In millions) July 3, January 2, June 27, Product returns reserve $ 10.7 $ 15.6 $ 11.8 Customer markdowns reserve 3.3 3.7 5.7 Other sales incentives reserve 4.4 6.0 3.4 Customer rebates liability 14.2 13.4 11.0 Customer advances liability 7.1 8.2 5.8

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jul. 03, 2021
Debt Disclosure [Abstract]
Schedule of Borrowings	Total debt consists of the following obligations: (In millions) July 3, January 2, June 27, Term Loan A, due December 6, 2023 $ 175.0 $ 180.0 $ 187.5 Incremental Term Loan — — 171.0 Senior Notes, 5.000% interest, due September 1, 2026 250.0 250.0 250.0 Senior Notes, 6.375% interest, due May 15, 2025 300.0 300.0 300.0 Borrowings under revolving credit agreements — — 125.0 Unamortized deferred financing costs (6.6) (7.5) (9.1) Total debt $ 718.4 $ 722.5 $ 1,024.4

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jul. 03, 2021
Leases [Abstract]
Lease, Cost [Table Text Block]	The following is a summary of the Company’s lease cost. Quarter Ended Year-To-Date Ended (In millions) July 3, June 27, July 3, June 27, Operating lease cost $ 8.0 $ 8.1 $ 16.1 $ 16.3 Variable lease cost 2.9 2.7 6.1 6.1 Short-term lease cost 0.2 0.2 0.5 0.5 Sublease income (1.5) (1.1) (3.3) (2.3) Total lease cost $ 9.6 $ 9.9 $ 19.4 $ 20.6
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	The following is a summary of the Company’s supplemental cash flow information related to leases. Quarter Ended Year-To-Date Ended (In millions) July 3, June 27, July 3, June 27, Cash paid for operating lease liabilities $ 9.0 $ 4.6 $ 18.1 $ 12.1 Operating lease assets obtained in exchange for lease liabilities 3.2 0.1 3.4 5.2

Financial Instruments and Ris_2

Financial Instruments and Risk Management (Tables)	6 Months Ended
	Jul. 03, 2021
Investments, All Other Investments [Abstract]
Schedule of Derivative Instruments [Table Text Block]	The notional amounts of the Company’s derivative instruments are as follows: (Dollars in millions) July 3, January 2, June 27, Foreign exchange hedge contracts $ 293.9 $ 250.7 $ 161.1 Interest rate swap — — 314.6 Cross currency swap 79.8 79.8 79.8
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) July 3, January 2, June 27, Financial assets: Foreign exchange hedge contracts $ 1.6 $ — $ 4.1 Financial liabilities: Foreign exchange hedge contracts $ (4.1) $ (8.8) $ (0.1) Interest rate swap — — (9.8) Cross currency swap (8.6) (10.8) (1.9)

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jul. 03, 2021
Share-based Payment Arrangement [Abstract]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	The Company granted restricted awards and performance awards as follows: Year-To-Date Ended July 3, 2021 Year-To-Date Ended June 27, 2020 (In millions) Company Shares Issued Weighted-Average Grant Date Fair Value Company Shares Issued Weighted-Average Grant Date Fair Value Restricted Awards 588,275 $ 34.76 1,325,475 $ 22.28 Performance Awards 622,875 $ 35.73 346,584 $ 35.02

Retirement Plans (Tables)

Retirement Plans (Tables)	6 Months Ended
	Jul. 03, 2021
Retirement Benefits [Abstract]
Summary of Net Pension and SERP Expense Recognized	The following is a summary of net pension and Supplemental Executive Retirement Plan (“SERP”) expense recognized by the Company. Quarter Ended Year-To-Date Ended (In millions) July 3, June 27, July 3, June 27, Service cost pertaining to benefits earned during the period $ 1.7 $ 1.6 $ 3.5 $ 3.2 Interest cost on projected benefit obligations 3.2 3.6 6.4 7.1 Expected return on pension assets (4.9) (4.7) (9.8) (9.3) Net amortization loss 3.5 1.7 6.9 3.3 Net pension expense $ 3.5 $ 2.2 $ 7.0 $ 4.3

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jul. 03, 2021
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income (Loss)	The change in accumulated other comprehensive income (loss) during the quarters ended July 3, 2021 and June 27, 2020 is as follows: (In millions) Foreign Derivatives Pension Total Balance at March 28, 2020 $ (58.5) $ (5.6) $ (47.4) $ (111.5) Other comprehensive income (loss) before reclassifications (1) 2.6 (1.8) — 0.8 Amounts reclassified from accumulated other comprehensive income (loss) — (2.4) (2) 1.7 (3) (0.7) Income tax expense (benefit) — 0.3 (0.4) (0.1) Net reclassifications — (2.1) 1.3 (0.8) Net current-period other comprehensive income (loss) (1) 2.6 (3.9) 1.3 — Balance at June 27, 2020 $ (55.9) $ (9.5) $ (46.1) $ (111.5) Balance at April 3, 2021 $ (38.4) $ (14.9) $ (70.8) $ (124.1) Other comprehensive income (loss) before reclassifications (1) 2.5 (1.8) — 0.7 Amounts reclassified from accumulated other comprehensive income (loss) — 2.4 (2) 3.5 (3) 5.9 Income tax expense (benefit) — (0.6) (0.8) (1.4) Net reclassifications — 1.8 2.7 4.5 Net current-period other comprehensive income (loss) (1) 2.5 — 2.7 5.2 Balance at July 3, 2021 $ (35.9) $ (14.9) $ (68.1) $ (118.9) (1) Other comprehensive income (loss) is reported net of taxes and noncontrolling interest. (2) Amounts related to foreign currency derivatives 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 the interest rate swap and the cross-currency swap are included in interest expense. (3) Amounts reclassified are included in the computation of net pension expense. The change in accumulated other comprehensive income (loss) during the year-to-dates ended July 3, 2021 and June 27, 2020 is as follows: (In millions) Foreign Derivatives Pension Total Balance at December 28, 2019 $ (47.6) $ (5.8) $ (48.7) $ (102.1) Other comprehensive income (loss) before reclassifications (1) (8.3) (0.7) — (9.0) Amounts reclassified from accumulated other comprehensive income (loss) — (3.6) (2) 3.3 (3) (0.3) Income tax expense (benefit) — 0.6 (0.7) (0.1) Net reclassifications — (3.0) 2.6 (0.4) Net current-period other comprehensive income (loss) (1) (8.3) (3.7) 2.6 (9.4) Balance at June 27, 2020 $ (55.9) $ (9.5) $ (46.1) $ (111.5) Balance at January 2, 2021 $ (36.8) $ (20.3) $ (73.5) $ (130.6) Other comprehensive income (loss) before reclassifications (1) 0.9 3.2 — 4.1 Amounts reclassified from accumulated other comprehensive income (loss) — 3.0 (2) 6.9 (3) 9.9 Income tax expense (benefit) — (0.8) (1.5) (2.3) Net reclassifications — 2.2 5.4 7.6 Net current-period other comprehensive income (loss) (1) 0.9 5.4 5.4 11.7 Balance at July 3, 2021 $ (35.9) $ (14.9) $ (68.1) $ (118.9) (1) Other comprehensive income (loss) is reported net of taxes and noncontrolling interest. (2) Amounts related to foreign currency derivatives 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 the interest rate swap and the cross-currency swap are included in interest expense. (3) Amounts reclassified are included in the computation of net pension expense.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jul. 03, 2021
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following table sets forth financial assets and liabilities measured at fair value in the consolidated condensed 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) July 3, January 2, June 27, Financial assets: Derivatives $ 1.6 $ — $ 4.1 Financial liabilities: Derivatives $ (12.7) $ (19.6) $ (11.8)
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) July 3, January 2, June 27, Carrying value $ 718.4 $ 722.5 $ 1,024.4 Fair value 757.2 765.4 1,062.4

Litigation and Contingencies (T

Litigation and Contingencies (Tables)	6 Months Ended
	Jul. 03, 2021
Commitments and Contingencies Disclosure [Abstract]
Environmental Exit Costs by Cost [Table Text Block]	The following is a summary of the activity with respect to the environmental remediation reserve established by the Company: Year-To-Date Ended (In millions) July 3, June 27, Remediation liability at beginning of the year $ 101.8 $ 124.4 Changes in estimate — — Amounts paid (8.7) (17.7) Remediation liability at the end of the quarter $ 93.1 $ 106.7
Minimum Royalty and Advertising Obligations Due Under Terms of Certain Licenses Held by Company	These minimum future obligations for the fiscal periods subsequent to July 3, 2021 are as follows: (In millions) 2021 2022 2023 2024 2025 Thereafter Minimum royalties $ 0.6 $ 1.8 $ — $ — $ — $ — Minimum advertising $ — $ 3.4 $ 3.5 $ 3.6 $ — $ —

Business Segments (Tables)

Business Segments (Tables)	6 Months Ended
	Jul. 03, 2021
Segment Reporting [Abstract]
Revenue and Operating Profit by Segment	The following is a summary of certain key financial measures for each reportable segment. Quarter Ended Year-to-Date Ended (In millions) July 3, June 27, July 3, June 27, Revenue: Wolverine Michigan Group $ 354.4 $ 217.4 $ 652.1 $ 465.2 Wolverine Boston Group 258.0 122.5 458.9 304.6 Other 19.5 9.2 31.6 18.6 Total $ 631.9 $ 349.1 $ 1,142.6 $ 788.4 Operating profit (loss): Wolverine Michigan Group $ 75.5 $ 38.4 $ 134.7 $ 81.5 Wolverine Boston Group 47.0 8.6 81.1 27.4 Other 1.2 0.4 1.5 0.3 Corporate (59.9) (39.9) (95.4) (84.8) Total $ 63.8 $ 7.5 $ 121.9 $ 24.4
Assets and Goodwill by Segment	(In millions) July 3, January 2, June 27, Total assets: Wolverine Michigan Group $ 702.4 $ 626.9 $ 714.4 Wolverine Boston Group 1,157.9 1,077.8 1,307.0 Other 43.4 31.4 37.0 Corporate 399.9 401.3 531.0 Total $ 2,303.6 $ 2,137.4 $ 2,589.4 Goodwill: Wolverine Michigan Group $ 145.7 $ 145.4 $ 143.2 Wolverine Boston Group 297.9 297.0 292.4 Total $ 443.6 $ 442.4 $ 435.6

Earnings Per Share (Computation

Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	426,920	1,955,425	345,247	1,183,907
Numerator:
Net earnings (loss) attributable to Wolverine World Wide, Inc.	$ 44.7	$ (1.6)	$ 83.2	$ 11.4
Adjustment for earnings allocated to non-vested restricted common stock	(0.7)	(0.2)	(1.4)	(0.4)
Net earnings (loss) used in calculating basic and diluted earnings per share	$ 44	$ (1.8)	$ 81.8	$ 11
Denominator:
Weighted average shares outstanding	82,600,000	81,700,000	82,500,000	81,600,000
Adjustment for non-vested restricted common stock	(100,000)	(800,000)	(200,000)	(600,000)
Shares used in calculating basic earnings per share	82,500,000	80,900,000	82,300,000	81,000,000
Effect of dilutive stock options	1,100,000	0	1,100,000	500,000
Shares used in calculating diluted earnings per share	83,600,000	80,900,000	83,400,000	81,500,000
Net earnings (loss) per share:
Basic	$ 0.53	$ (0.02)	$ 0.99	$ 0.14
Diluted	$ 0.53	$ (0.02)	$ 0.98	$ 0.14

Goodwill and Indefinite-Lived_3

Goodwill and Indefinite-Lived Intangibles (Changes in the Carrying Amount of Goodwill and Indefinite-Lived Intangibles) (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020
Goodwill [Roll Forward]
Goodwill, Beginning balance	$ 442.4	$ 438.9
Foreign currency translation effects	1.2	(3.3)
Goodwill, Ending balance	$ 443.6	$ 435.6

Goodwill and Indefinite-Lived_4

Goodwill and Indefinite-Lived Intangibles Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2021	Jul. 03, 2021	Jun. 27, 2020
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangibles	$ 382.3	$ 382.3	$ 604.5
Impairment of Intangible Assets (Excluding Goodwill)	$ 222.2
Sperry [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangibles		$ 296

Accounts Receivable (Details)

Accounts Receivable (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Sale of accounts receivable, maximum amount under agreement	$ 75		$ 75
Sale of accounts receivable percent paid at sale	90.00%		90.00%
Accounts receivable sold	$ 0	$ 0	$ 0	$ 14.1
Fee charged on sale of accounts receivable	0	0	0	0.1
Accounts receivable, reduction due to sale	$ 0	$ 0	$ 0	$ 0

Revenue From Contracts With C_3

Revenue From Contracts With Customers Additional Information (Details) $ in Millions	Jul. 03, 2021USD ($)
Revenue Recognition [Abstract]
Remaining Fixed Transaction Price	$ 20.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Year	2024

Revenue From Contracts With C_4

Revenue From Contracts With Customers Disaggrated Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Revenue	$ 631.9	$ 349.1	$ 1,142.6	$ 788.4
Wolverine Michigan Group [Member]
Revenue	354.4	217.4	652.1	465.2
Wolverine Boston Group [Member]
Revenue	258	122.5	458.9	304.6
Other [Member]
Revenue	19.5	9.2	31.6	18.6
Wholesale Channel [Member]
Revenue	494.7	232.3	891.1	604.4
Wholesale Channel [Member] | Wolverine Michigan Group [Member]
Revenue	282	149	516.4	363.3
Wholesale Channel [Member] | Wolverine Boston Group [Member]
Revenue	194.5	74.5	345.3	223.6
Wholesale Channel [Member] | Other [Member]
Revenue	18.2	8.8	29.4	17.5
Consumer-Direct Channel [Member]
Revenue	137.2	116.8	251.5	184
Consumer-Direct Channel [Member] | Wolverine Michigan Group [Member]
Revenue	72.4	68.4	135.7	101.9
Consumer-Direct Channel [Member] | Wolverine Boston Group [Member]
Revenue	63.5	48	113.6	81
Consumer-Direct Channel [Member] | Other [Member]
Revenue	$ 1.3	$ 0.4	$ 2.2	$ 1.1

Revenue From Contracts With C_5

Revenue From Contracts With Customers Contract Balances (Details) - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020
Revenue from Contracts with Customer [Abstract]
Product Returns Reserve	$ 10.7	$ 15.6	$ 11.8
Customer Markdowns Reserve	3.3	3.7	5.7
Sales Incentives Reserve	4.4	6	3.4
Customer Rebates Liability	14.2	13.4	11
Customer Advances, Current	$ 7.1	$ 8.2	$ 5.8

Debt (Schedule of Borrowings) (

Debt (Schedule of Borrowings) (Details) - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020
Debt Instrument [Line Items]
Borrowings under revolving credit agreements	$ 0	$ 0	$ 125
Debt Issuance Costs, Noncurrent, Net	(6.6)	(7.5)	(9.1)
Total debt	718.4	722.5	1,024.4
Term Loan A [Member] | December Sixth Two Thousand Twenty Three [Domain]
Debt Instrument [Line Items]
Long-term debt	175	180	187.5
Term Loan A [Member] | May Fourth Two Thousand Twenty One [Domain]
Debt Instrument [Line Items]
Long-term debt	0	0	171
Senior Notes [Member] | September First Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Long-term debt	250	250	250
Senior Notes [Member] | May Fifteenth Two Thousand Twenty Five [Domain]
Debt Instrument [Line Items]
Long-term debt	$ 300	$ 300	$ 300

Debt (Additional Information) (

Debt (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020	Jan. 02, 2021
Debt Instrument [Line Items]
Borrowings under revolving credit agreements	$ 0	$ 125	$ 0	$ 125	$ 0
Debt Issuance Costs, Noncurrent, Net	6.6	9.1	6.6	9.1	7.5
Total debt	718.4	1,024.4	718.4	1,024.4	722.5
Repayments of Debt					171
Current maturities of long-term debt	10	183.5	10	183.5	10
Amortization of deferred financing costs	0.6	0.7	1.3	1.1
Maximum [Member]
Debt Instrument [Line Items]
Aggregate principal amount debt instrument	1,750		$ 1,750
Alternative Base Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.00%
Alternative Base Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			0.125%
Euro Currency Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.00%
Euro Currency Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.125%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Aggregate principal amount debt instrument	800		$ 800
Outstanding letters of credit	6.1	5.8	6.1	5.8	6.1
Foreign Currency Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	200		200
Swingline Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	50		50
Letter of Credit Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	50		50
Foreign Line of Credit [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	4		4
December Sixth Two Thousand Twenty Three [Domain] | Term Loan A [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount	175	187.5	175	187.5	180
Aggregate principal amount debt instrument	$ 200		$ 200
Weighted average interest rate	1.88%		1.88%
May Fourth Two Thousand Twenty One [Domain] | Term Loan A [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount	$ 0	171	$ 0	171	0
September First Two Thousand Twenty Six [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount	250	250	250	250	250
Aggregate principal amount debt instrument	$ 250		$ 250
Interest rate	5.00%		5.00%
May Fifteenth Two Thousand Twenty Five [Domain] | Senior Notes [Member]
Debt Instrument [Line Items]
Debt, Long-term and Short-term, Combined Amount	$ 300	$ 300	$ 300	$ 300	$ 300
Aggregate principal amount debt instrument	$ 300		$ 300
Interest rate	6.375%		6.375%

Leases Operating Lease Costs (D

Leases Operating Lease Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Leases [Abstract]
Operating Lease, Expense	$ 8	$ 8.1	$ 16.1	$ 16.3
Variable Lease, Cost	2.9	2.7	6.1	6.1
Short-term Lease, Cost	0.2	0.2	0.5	0.5
Sublease Income	(1.5)	(1.1)	(3.3)	(2.3)
Lease, Cost	$ 9.6	$ 9.9	$ 19.4	$ 20.6

Leases, Supplemental Cash Flow

Leases, Supplemental Cash Flow (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Leases [Abstract]
Operating Lease, Payments	$ 9	$ 4.6	$ 18.1	$ 12.1
Lease assets obtained in exchange for lease liabilities	$ 3.2	$ 0.1	$ 3.4	$ 5.2

Financial Instruments and Ris_3

Financial Instruments and Risk Management (Derivative Notional Amounts) (Details) - Hedge [Member] - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020
Foreign exchange contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Asset, Notional Amount	$ 293.9	$ 250.7	$ 161.1
Interest rate swaps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Asset, Notional Amount	0	0	314.6
Cross currency swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Asset, Notional Amount	$ 79.8	$ 79.8	$ 79.8

Financial Instruments and Ris_4

Financial Instruments and Risk Management Derivative Recorded Values (Details) - Hedge [Member] - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020
Foreign exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Foreign exchange contracts, asset	$ 1.6	$ 0	$ 4.1
Foreign exchange contracts liabilities	(4.1)	(8.8)	(0.1)
Interest rate swaps [Member]
Derivatives, Fair Value [Line Items]
Interest rate swap, liabilities	0	0	(9.8)
Cross currency swap [Member]
Derivatives, Fair Value [Line Items]
Cross currency swap, liabilities	$ (8.6)	$ (10.8)	$ (1.9)

Financial Instruments and Ris_5

Financial Instruments and Risk Management (Additional Information) (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jan. 02, 2021
Foreign exchange contracts [Member]
Financial Instruments And Derivatives [Line Items]
Maximum remaining maturity of foreign currency derivatives	538 days	412 days	538 days
Derivative, Net Hedge Ineffectiveness Gain (Loss)		$ 1.3
Cross currency swap [Member]
Financial Instruments And Derivatives [Line Items]
Financial instrument expiration date	Sep. 1, 2021
Derivative, Fixed Interest Rate	2.75%
Derivative, Forward Interest Rate	5.00%

Schedule of Share-based Payment

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - $ / shares	6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020
Restricted Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards Issued	588,275	1,325,475
Awards Issued, Weighted Average Grant Date Fair Value	$ 34.76	$ 22.28
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards Issued	622,875	346,584
Awards Issued, Weighted Average Grant Date Fair Value	$ 35.73	$ 35.02

Stock-Based Compensation Additi

Stock-Based Compensation Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Share-based Payment Arrangement [Abstract]
Stock-based compensation expense	$ 11.6	$ 7.5	$ 21.6	$ 10.2
Related income tax benefits on share based compensation	$ 2.2	$ 1.5	$ 4.2	$ 2

Retirement Plans (Summary of Ne

Retirement Plans (Summary of Net Pension and Supplemental Executive Retirement Plan Expense Recognized) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Retirement Benefits [Abstract]
Service cost pertaining to benefits earned during the period	$ 1.7	$ 1.6	$ 3.5	$ 3.2
Interest cost on projected benefit obligations	3.2	3.6	6.4	7.1
Expected return on pension assets	(4.9)	(4.7)	(9.8)	(9.3)
Net amortization loss	3.5	1.7	6.9	3.3
Net pension expense	$ 3.5	$ 2.2	$ 7	$ 4.3

Income Taxes (Additional Inform

Income Taxes (Additional Information) (Details)	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Percent	17.70%	(28.30%)	16.90%	(33.00%)

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI	$ (124.1)	$ (111.5)	$ (130.6)	$ (102.1)
Accumulated other comprehensive loss	(118.9)	(111.5)	(118.9)	(111.5)
Other comprehensive income (loss) before reclassifications	0.7	0.8	4.1	(9)
Amounts reclassified from AOCI	5.9	(0.7)	9.9	(0.3)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax	(1.4)	(0.1)	(2.3)	(0.1)
Net reclassifications	4.5	(0.8)	7.6	(0.4)
Other Comprehensive Income (Loss), Net of Tax	5.4	0.1	11.6	(10.5)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(5.2)	0	(11.7)	9.4
Ending balance AOCI	(118.9)	(111.5)	(118.9)	(111.5)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI	(38.4)	(58.5)	(36.8)	(47.6)
Accumulated other comprehensive loss	(35.9)	(55.9)	(35.9)	(55.9)
Other comprehensive income (loss) before reclassifications	2.5	2.6	0.9	(8.3)
Amounts reclassified from AOCI	0	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax	0	0	0	0
Net reclassifications	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	(2.5)	(2.6)	(0.9)	8.3
Ending balance AOCI	(35.9)	(55.9)	(35.9)	(55.9)
Derivatives [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI	(14.9)	(5.6)	(20.3)	(5.8)
Accumulated other comprehensive loss	(14.9)	(9.5)	(14.9)	(9.5)
Other comprehensive income (loss) before reclassifications	(1.8)	(1.8)	3.2	(0.7)
Amounts reclassified from AOCI	2.4	(2.4)	3	(3.6)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax	(0.6)	0.3	(0.8)	0.6
Net reclassifications	1.8	(2.1)	2.2	(3)
Other Comprehensive Income (Loss), Net of Tax	0	3.9	(5.4)	3.7
Ending balance AOCI	(14.9)	(9.5)	(14.9)	(9.5)
Pension adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance AOCI	(70.8)	(47.4)	(73.5)	(48.7)
Accumulated other comprehensive loss	(68.1)	(46.1)	(68.1)	(46.1)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from AOCI	3.5	1.7	6.9	3.3
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax	(0.8)	(0.4)	(1.5)	(0.7)
Net reclassifications	2.7	1.3	5.4	2.6
Other Comprehensive Income (Loss), Net of Tax	(2.7)	(1.3)	(5.4)	(2.6)
Ending balance AOCI	$ (68.1)	$ (46.1)	$ (68.1)	$ (46.1)

Fair Value Measurements Recurri

Fair Value Measurements Recurring Fair Value Measurements (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	$ 1.6	$ 0	$ 4.1
Derivative Liability	$ (12.7)	$ (19.6)	$ (11.8)

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Disclosures (Details) - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020
Fair Value Disclosures [Abstract]
Debt, Carrying Value	$ 718.4	$ 722.5	$ 1,024.4
Debt, Fair Value	$ 757.2	$ 765.4	$ 1,062.4

Litigation and Contingencies En

Litigation and Contingencies Environmental Remediation (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 28, 2020	Jul. 03, 2021	Jun. 27, 2020
Environmental Exit Cost [Line Items]
Site Contingency, Recovery from Third Party of Environmental Remediation Cost	$ 55
Accrual for Environmental Loss Contingencies [Roll Forward]
Remediation liability at beginning of the year	$ 124.4	$ 101.8	$ 124.4
Changes in estimate		0	0
Amounts paid		(8.7)	(17.7)
Remediation liability at the end of the quarter		93.1	$ 106.7
Environmental remediation accrual, current		24.8
Environmental remediation accrual, noncurrent		$ 68.3
Site Contingency, Time Frame of Disbursements		25

Litigation and Contingencies Mi

Litigation and Contingencies Minimum Royalty and Advertising Obligations Due Under Terms of Certain Licenses Held by Company (Details) $ in Millions	Jul. 03, 2021USD ($)
Royalties [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
2021	$ 0.6
2022	1.8
2023	0
2024	0
2025	0
Thereafter	0
Advertising [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
2021	0
2022	3.4
2023	3.5
2024	3.6
2025	0
Thereafter	$ 0

Litigation and Contingencies (A

Litigation and Contingencies (Additional Information) (Details) - Licensing agreements [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Long-term Purchase Commitment [Line Items]
Royalty expense, licensing agreements	$ 0.7	$ 0.4	$ 1.1	$ 0.8
Advertising expense, licensing agreements	$ 1.7	$ 0.4	$ 2.7	$ 1

Business Segments (Revenue and

Business Segments (Revenue and Operating Profit by Segment) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Segment Reporting Information [Line Items]
Revenue	$ 631.9	$ 349.1	$ 1,142.6	$ 788.4
Operating profit (loss)	63.8	7.5	121.9	24.4
Wolverine Michigan Group [Member]
Segment Reporting Information [Line Items]
Revenue	354.4	217.4	652.1	465.2
Operating profit (loss)	75.5	38.4	134.7	81.5
Wolverine Boston Group [Member]
Segment Reporting Information [Line Items]
Revenue	258	122.5	458.9	304.6
Operating profit (loss)	47	8.6	81.1	27.4
Other [Member]
Segment Reporting Information [Line Items]
Revenue	19.5	9.2	31.6	18.6
Operating profit (loss)	1.2	0.4	1.5	0.3
Corporate [Member]
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (59.9)	$ (39.9)	$ (95.4)	$ (84.8)

Business Segments (Assets and G

Business Segments (Assets and Goodwill by Segment) (Details) - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020	Dec. 28, 2019
Segment Reporting Information [Line Items]
Total assets	$ 2,303.6	$ 2,137.4	$ 2,589.4
Goodwill	443.6	442.4	435.6	$ 438.9
Wolverine Michigan Group [Member]
Segment Reporting Information [Line Items]
Total assets	702.4	626.9	714.4
Goodwill	145.7	145.4	143.2
Wolverine Boston Group [Member]
Segment Reporting Information [Line Items]
Total assets	1,157.9	1,077.8	1,307
Goodwill	297.9	297	292.4
Other [Member]
Segment Reporting Information [Line Items]
Total assets	43.4	31.4	37
Corporate [Member]
Segment Reporting Information [Line Items]
Total assets	$ 399.9	$ 401.3	$ 531

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event [Member] - Sweaty Betty [Member] $ in Millions	Aug. 02, 2021USD ($)
Subsequent Event [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	100.00%
Business Combination, Consideration Transferred	$ 415.8
Cash Acquired from Acquisition	$ 7.1