Other Income and Expense (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 26, 2011
Other income and expense:
Other income (expense), net	$ (1.4)		$ (0.7)
Gain (loss) from Foster's swap and related financial instruments
Other income and expense:
Other income (expense), net	0	[1]	0.8	[1]
Gain (loss) from other foreign exchange and derivative activity
Other income and expense:
Other income (expense), net	(1.7)		(0.7)
Environmental reserve
Other income and expense:
Other income (expense), net	0		(0.2)
Other, net
Other income and expense:
Other income (expense), net	$ 0.3		$ (0.6)

[1] During January 2011, we settled our remaining Foster's Group Limited's ("Fosters") total return swap and related financial instruments.