Changes in Components of Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Changes in components of other comprehensive income [Line Items]
Pension and OPEB liability adjustments, pre-tax	$ 1.4	$ 1.7	$ 3.3	$ 1.1
Pension and OPEB liability adjustments, Tax	(0.4)	(0.5)	(1.2)	(0.3)
Pension and OPEB liability adjustments, Net of Tax	1.0	1.2	2.1	0.8
Unrealized gain (loss) on financial instruments, pre-tax	(6.1)	(6.2)	(4.4)	(3.0)
Unrealized gain (loss) on financial instruments, Tax	(0.2)	2.1	(0.8)	1.0
Unrealized gain (loss) on financial instruments, Net of Tax	(6.3)	(4.1)	(5.2)	(2.0)
Unrealized foreign currency translation adjustments, pre-tax	(5.9)	(23.1)	(17.1)	(11.0)
Unrealized foreign currency translation adjustments, Tax	0	0	0	0
Unrealized foreign currency translation adjustments, Net of Tax	(5.9)	(23.1)	(17.1)	(11.0)
Total other comprehensive income (loss), pre-tax	(10.6)	(27.6)	(18.2)	(12.9)
Total other comprehensive income (loss), Tax	(0.6)	1.6	(2.0)	0.7
Other Comprehensive Income (Loss)	(11.2)	(26.0)	(20.2)	(12.2)
Accumulated Other Comprehensive Income (Loss) [Member]
Changes in components of other comprehensive income [Line Items]
Other Comprehensive Income (Loss)			$ (20.2)	$ (12.2)