Accumulated Other Comprehensive Income/(Loss) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ 33.2	$ 34.6	$ 36.4		$ 36.4
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	0.7	(1.4)	(1.8)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax	0	0	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent	0.7	(1.4)	(1.8)	6.1	(2.6)	23.5
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	33.9	33.2	34.6		33.9
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(16.4)	9.6	11.4		11.4
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(8.3)	(25.0)	0.8
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	2.3	(1.0)	(2.6)		(1.2)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(6.0)	(26.0)	(1.8)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(22.4)	(16.4)	9.6		(22.4)
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(42.0)	(58.3)	(58.3)		(58.3)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax	4.4	11.5	0
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax	0	0	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(7.2)	(16.3)		0	(23.5)	3.5
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(34.8)	(42.0)	(58.3)		(34.8)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(25.2)	(14.1)	(10.5)		(10.5)
Other comprehensive income (loss) before relclassification	(3.2)	(14.9)	(1.0)
Other Comprehensive Income (Loss), Settlement of Pension Obligation Arising During the Period, Net of Tax	2.8	4.8
Amounts Reclassified from Accumulated Other Comprehensive Income due to Pension Settlement Obligation	2.8	4.8
Amounts reclassified from accumulated other comprehensive income	2.3	(1.0)	(2.6)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	1.9	(11.1)	(3.6)	12.0	(12.8)	32.1
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (23.3)	$ (25.2)	$ (14.1)		$ (23.3)