Details of Foreign Exchange Contracts Pre-Tax Amounts (Detail) (Net Investment Hedging, Foreign Exchange Contracts, Other, net, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Jan. 01, 2011
Net Investment Hedging | Foreign Exchange Contracts | Other, net
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Amount Recorded in OCI Gain (Loss)	$ (2.4)		$ (31.4)
Effective Portion Recorded in Income Statement
Ineffective Portion Recorded in Income Statement		[1]		[1]

[1] Includes ineffective portion and amount excluded from effectiveness testing.