Accumulated Other Comprehensive Loss (Details 1) (USD $) In Millions	Sep. 30, 2011		Dec. 31, 2010
Components of accumulated other comprehensive loss
Currency translation adjustments, net of tax benefit of $(0.2)	$ (17.2)		$ (17.1)
Unrealized loss on derivative financial instruments, net of tax benefit of $(31.7) and $(21.4)	(55.0)		(36.3)
Funded status of pension liability, net of tax benefit of $(24.8)	(42.1)		(42.1)
Accumulated other comprehensive income (loss), net of tax, total	$ (114.3)	[1]	$ (95.5)

[1] Unaudited