Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Statement of Comprehensive Income [Abstract]
Net earnings	$ 133.9us-gaap_ProfitLoss	$ 101.0us-gaap_ProfitLoss	$ 80.8us-gaap_ProfitLoss
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(18.5)	(5.4)	5.7
Effective portion of changes related to foreign exchange contracts:
Net gain (loss) arising during the period, net of taxes of $4.1, $0.2 and $1.0	9.1	(0.4)	(2.1)
Reclassification adjustments into cost of goods sold, net of taxes of $(0.2), $(0.6) and $1.3	0.3	1.3	(2.9)
Unrealized gain (loss) on interest rate swap, net of taxes of $0.1, $(0.8) and $0.5	(0.2)	1.6	(1.0)
Pension adjustments:
Net actuarial gain (loss) arising during the period, net of taxes of $19.6, $(33.1) and $16.0	(36.3)	61.4	(29.8)
Amortization of prior actuarial losses, net of taxes of $(2.6), $(10.7) and $(7.3)	4.8	19.7	13.5
Amortization of prior service cost	0.1	0.1	0.1
Settlement gain included in net income, net of taxes of $0.3	(0.7)	0	0
Other comprehensive (loss) income	(41.4)	78.3	(16.5)
Comprehensive income	92.5	179.3	64.3
Less: comprehensive (loss) income attributable to noncontrolling interest	(0.3)	0.5	0
Comprehensive income attributable to Wolverine World Wide, Inc.	$ 92.8us-gaap_ComprehensiveIncomeNetOfTax	$ 178.8us-gaap_ComprehensiveIncomeNetOfTax	$ 64.3us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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