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. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net earnings attributable to Wolverine World Wide, Inc.	$ 39.3	$ 58.8	$ 55.3	$ 46.7	$ (60.3)	$ 23.2	$ 20.7	$ 16.7	$ 200.1	$ 0.3	$ 87.7
Adjustment for earnings allocated to nonvested restricted common stock									(7.5)	0.0	(2.1)
Net earnings used to calculate basic earnings per share									192.6	0.3	85.6
Adjustment for earnings (loss) reallocated to nonvested restricted common stock									1.8	(0.2)	0.1
Net earnings used to calculate diluted earnings per share									$ 194.4	$ 0.1	$ 85.7
Weighted average shares outstanding									94.8	96.4	99.0
Adjustment for nonvested restricted common stock									(1.8)	(2.7)	(3.7)
Shares used to calculate basic earnings per share									93.0	93.7	95.3
Effect of dilutive stock options									2.0	1.7	0.9
Shares used to calculate diluted earnings per share									95.0	95.4	96.2
Earnings per share - Basic	$ 0.39	$ 0.62	$ 0.58	$ 0.49	$ (0.65)	$ 0.24	$ 0.21	$ 0.17	$ 2.07	$ 0.00	$ 0.90
Earnings per share - Diluted	$ 0.39	$ 0.60	$ 0.57	$ 0.48	$ (0.65)	$ 0.24	$ 0.21	$ 0.17	$ 2.05	$ 0.00	$ 0.89