Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Income Statement [Abstract]
Revenue	$ 2,494.6	$ 2,691.6	$ 2,761.1
Cost of goods sold	1,526.4	1,636.9	1,673.8
Restructuring costs	8.3	3.0	1.0
Gross profit	959.9	1,051.7	1,086.3
Selling, general and administrative expenses	758.0	816.0	815.2
Acquisition-related integration costs	0.0	0.0	15.2
Restructuring and impairment costs	42.0	34.6	26.0
Operating profit	159.9	201.1	229.9
Other expenses:
Interest expense, net	34.8	38.2	45.4
Debt extinguishment and other costs	18.1	1.6	1.3
Other expense (income), net	(3.5)	(3.3)	1.7
Total other expenses	49.4	36.5	48.4
Earnings before income taxes	110.5	164.6	181.5
Income taxes	23.0	41.4	47.6
Net earnings	87.5	123.2	133.9
Less: net earnings (loss) attributable to noncontrolling interest	(0.2)	0.4	0.8
Net earnings attributable to Wolverine World Wide, Inc.	$ 87.7	$ 122.8	$ 133.1
Net earnings per share :
Earnings per share - Basic	$ 0.90	$ 1.22	$ 1.33
Earnings per share - Diluted	$ 0.89	$ 1.20	$ 1.30