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Earnings Per Share (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Oct. 01, 2022
Oct. 02, 2021
Oct. 01, 2022
Oct. 02, 2021
Earnings Per Share [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 1,422,302 494,447 1,126,353 576,081
Numerator:        
Net earnings attributable to Wolverine World Wide, Inc. $ 39.0 $ 0.0 $ 173.3 $ 83.2
Adjustment for earnings allocated to non-vested restricted common stock (0.8) (0.2) (3.4) (1.4)
Net earnings (loss) used in calculating basic and diluted earnings per share $ 38.2 $ (0.2) $ 169.9 $ 81.8
Denominator:        
Weighted average shares outstanding Before Adjustments [Domain] (78,700,000) (82,300,000) (80,000,000.0) (82,500,000)
Adjustment for non-vested restricted common stock 0 0 0 (100,000)
Shares used in calculating basic earnings per share 78,700,000 82,300,000 80,000,000.0 82,400,000
Effect of dilutive stock options 200,000 0 200,000 1,000,000.0
Shares used in calculating diluted earnings per share 78,900,000 82,300,000 80,200,000 83,400,000
Net Earnings Per Share: [Abstract]        
Basic $ 0.49 $ 0.00 $ 2.12 $ 0.99
Diluted $ 0.48 $ 0.00 $ 2.12 $ 0.98