Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 14, 2014	Jun. 15, 2013	Jun. 14, 2014	Jun. 15, 2013
Numerator:
Net earnings attributable to Wolverine World Wide, Inc.	$ 27.5	$ 17.9	$ 64.6	$ 47.7
Adjustment for earnings allocated to non-vested restricted common stock	(0.5)	(0.3)	(1.2)	(0.9)
Net earnings used in calculating basic earnings per share	27.0	17.6	63.4	46.8
Adjustment for earnings reallocated from non-vested restricted common stock	0.1	0	0.1	0
Net earnings used in calculating diluted earnings per share	$ 27.1	$ 17.6	$ 63.5	$ 46.8
Denominator:
Weighted average shares outstanding	101,435,465	100,327,444	101,198,265	99,894,398
Adjustment for non-vested restricted common stock	(3,284,621)	(3,527,798)	(3,213,033)	(3,224,326)
Shares used in calculating basic earnings per share	98,150,844	96,799,646	97,985,232	96,670,072
Effect of dilutive stock options	1,855,864	1,836,348	1,957,294	1,737,882
Shares used in calculating diluted earnings per share	100,006,708	98,635,994	99,942,526	98,407,954
Net earnings per share:
Basic	$ 0.28	$ 0.18	$ 0.65	$ 0.48
Diluted	$ 0.27	$ 0.18	$ 0.64	$ 0.48