Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016		Jan. 02, 2016		Jan. 03, 2015
Condensed Statement of Income Captions [Line Items]
Net earnings		$ 87.5		$ 123.2		$ 133.9
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments		(6.6)		(31.8)		(18.5)
Unrealized gain (loss) arising during the period, net of taxes	[1]	(23.5)		(8.6)
Net actuarial gain (loss) arising during the period, net of taxes of $(11.2), $8.2 and $(19.6)		(20.8)		15.2		(36.3)
Amortization of prior actuarial losses, net of taxes of $1.7, $7.3 and $2.6		3.2		13.5		4.8
Amortization of prior service cost		0.1		0.1		0.1
Settlement gain included in net income, net of taxes of $0, $0 and $(0.3)		(0.1)		0.0		(0.7)
Other comprehensive loss		(25.4)		(8.0)		(41.4)
Less: other comprehensive loss attributable to noncontrolling interest		(0.4)		(1.4)		(1.1)
Other comprehensive income (loss) attributable to Wolverine World Wide, Inc.		(25.0)	[1]	(6.6)	[1]	(40.3)
Comprehensive income		62.1		115.2		92.5
Less: comprehensive loss attributable to noncontrolling interest		(0.6)		(1.0)		(0.3)
Comprehensive income attributable to Wolverine World Wide, Inc.		62.7		116.2		92.8
Foreign exchange contracts [Member]
Other comprehensive income (loss), net of tax:
Reclassification adjustments into expense, net of tax		(5.8)		(13.0)		0.3
Interest rate swap [Member]
Other comprehensive income (loss), net of tax:
Reclassification adjustments into expense, net of tax		1.1		1.4		0.0
Cash flow hedges adjustments [Member] | Foreign exchange contracts [Member]
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) arising during the period, net of taxes	[1]	5.5		10.8		9.1
Other comprehensive income (loss) attributable to Wolverine World Wide, Inc.	[1]	(0.3)		(2.2)
Cash flow hedges adjustments [Member] | Interest rate swap [Member]
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) arising during the period, net of taxes	[1]	(2.0)		(4.2)		$ (0.2)
Other comprehensive income (loss) attributable to Wolverine World Wide, Inc.	[1]	$ (0.9)		$ (2.8)

[1] Other comprehensive income is reported net of taxes and noncontrolling interest.