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Business Segments (Assets and Goodwill by Segment) (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 30, 2017	Jul. 01, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total assets	$ 2,300.3	$ 2,399.0	$ 2,500.0
Goodwill	427.0	429.8	427.2	$ 424.3
Wolverine Outdoor and Lifestyle Group [Member]
Segment Reporting Information [Line Items]
Total assets	443.8	420.4	444.2
Goodwill	128.2	128.8	127.7
Wolverine Boston Group [Member]
Segment Reporting Information [Line Items]
Total assets	1,247.1	1,245.0	1,398.1
Goodwill	282.3	284.5	283.0
Wolverine Heritage Group [Member]
Segment Reporting Information [Line Items]
Total assets	130.5	136.7	130.3
Goodwill	16.5	16.5	16.5
Other [Member]
Segment Reporting Information [Line Items]
Total assets	44.5	42.1	46.6
Corporate [Member]
Segment Reporting Information [Line Items]
Total assets	$ 434.4	$ 554.8	$ 480.8

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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