Earnings Per Share (Tables)

12 Months Ended

Jan. 01, 2022

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table sets forth the computation of basic and diluted earnings per share:

	Fiscal Year
(In millions, except per share data)	2021		2020		2019
Numerator:
Net earnings (loss) attributable to Wolverine World Wide, Inc.	$	68.6	$	(136.9)	$	128.5
Less: net earnings attributed to participating share-based awards	(1.1)		(0.8)		(2.6)
Net earnings (loss) used to calculate basic earnings per share	67.5		(137.7)		125.9
Adjustment for earnings reallocated to participating share-based awards	—		—		0.1
Net earnings (loss) used to calculate diluted earnings per share	$	67.5	$	(137.7)	$	126.0
Denominator:
Weighted average shares outstanding	82.4		81.8		85.7
Adjustment for unvested restricted common stock	(0.1)		(0.8)		(0.6)
Shares used to calculate basic earnings per share	82.3		81.0		85.1
Effect of dilutive share-based awards	1.0		—		2.1
Shares used to calculate diluted earnings per share	83.3		81.0		87.2
Net earnings (loss) per share:
Basic	$	0.82	$	(1.70)	$	1.48
Diluted	$	0.81	$	(1.70)	$	1.44