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. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,964,421	1,422,302	2,042,094	1,126,353
Numerator:
Net earnings attributable to Wolverine World Wide, Inc.	$ 8.6	$ 39.0	$ 51.6	$ 173.3
Adjustment for earnings allocated to non-vested restricted common stock	(0.2)	(0.8)	(1.2)	(3.4)
Net earnings used in calculating basic and diluted earnings per share	$ 8.4	$ 38.2	$ 50.4	$ 169.9
Denominator:
Weighted average shares outstanding	79,500,000	78,700,000	79,400,000	80,000,000.0
Effect of dilutive stock options	0	200,000	0	200,000
Shares used in calculating diluted earnings per share	79,500,000	78,900,000	79,400,000	80,200,000
Net Earnings Per Share: [Abstract]
Basic	$ 0.11	$ 0.49	$ 0.64	$ 2.12
Diluted	$ 0.11	$ 0.48	$ 0.64	$ 2.12