Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,563,018	1,964,421	1,636,131	2,042,094
Numerator:
Net earnings attributable to Wolverine World Wide, Inc.	$ 23.6	$ 8.6	$ 23.3	$ 51.6
Adjustment for earnings allocated to non-vested restricted common stock	(0.8)	(0.2)	(0.9)	(1.2)
Net earnings used in calculating basic and diluted earnings per share	$ 22.8	$ 8.4	$ 22.4	$ 50.4
Denominator:
Weighted average shares outstanding	80,000,000.0	79,500,000	79,900,000	79,400,000
Effect of dilutive stock options	0	0	0	0
Shares used in calculating diluted earnings per share	80,000,000.0	79,500,000	79,900,000	79,400,000
Net Earnings Per Share: [Abstract]
Basic	$ 0.28	$ 0.11	$ 0.28	$ 0.64
Diluted	$ 0.28	$ 0.11	$ 0.28	$ 0.64

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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