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

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