Business Segments (Assets and Goodwill by Segment) (Details) - USD ($) $ in Millions	Sep. 26, 2020	Dec. 28, 2019	Sep. 28, 2019	Dec. 29, 2018
Segment Reporting Information [Line Items]
Total assets	$ 2,501.1	$ 2,480.0	$ 2,468.5
Goodwill	437.8	438.9	437.0	$ 424.4
Wolverine Michigan Group [Member]
Segment Reporting Information [Line Items]
Total assets	691.8	773.8	814.8
Goodwill	143.9	144.4	143.1
Wolverine Boston Group [Member]
Segment Reporting Information [Line Items]
Total assets	1,322.5	1,354.8	1,404.6
Goodwill	293.9	294.5	293.9
Other [Member]
Segment Reporting Information [Line Items]
Total assets	33.6	38.4	43.8
Corporate [Member]
Segment Reporting Information [Line Items]
Total assets	$ 453.2	$ 313.0	$ 205.3