Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 18, 2016	Jun. 20, 2015	Jun. 18, 2016	Jun. 20, 2015
Numerator:
Net earnings attributable to Wolverine World Wide, Inc.	$ 24.0	$ 25.3	$ 41.4	$ 65.4
Adjustment for earnings allocated to non-vested restricted common stock	(0.5)	(0.4)	(0.9)	(1.2)
Net earnings used in calculating basic earnings per share	23.5	24.9	40.5	64.2
Adjustment for earnings reallocated from non-vested restricted common stock	0.0	0.0	0.0	0.1
Net earnings used in calculating diluted earnings per share	$ 23.5	$ 24.9	$ 40.5	$ 64.3
Denominator:
Weighted average shares outstanding	99.5	103.2	99.4	102.8
Adjustment for non-vested restricted common stock	(4.0)	(3.4)	(3.8)	(3.4)
Shares used in calculating basic earnings per share	95.5	99.8	95.6	99.4
Effect of dilutive stock options	0.6	1.8	0.5	1.9
Shares used in calculating diluted earnings per share	96.1	101.6	96.1	101.3
Net earnings per share:
Basic	$ 0.25	$ 0.25	$ 0.42	$ 0.65
Diluted	$ 0.24	$ 0.24	$ 0.42	$ 0.63