Other Income (Expense) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Feb. 14, 2013	Feb. 13, 2013
Other income (expense)	$ (66.7)	$ (2.9)	$ (31.7)
Foreign currency transaction loss	3.9	4.5
Other income attributable to foreign currency transaction gains and losses			(24.4)
Exchange rate, currency translation	6.30			6.30	4.30
Venezuela [Member]
Foreign currency transaction loss	(17.0)
Pre-tax charge on foreign currency devaluation transaction related to Venezuelan Bolivar	40.9
Not Designated as Hedging Instrument [Member]
Gain on derivatives in other income (expense)	(21.9)	(3.0)
Unrealized gain (loss) on derivatives	$ 20.1	$ (1.6)	$ 6.1