Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income/(Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ (38.2)	$ (1.1)	$ 35.1
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(37.1)	(36.2)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax	0.0	0.0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent	(37.1)	(36.2)	(1.3)
Deferred gains (losses), net of tax	(26.1)	(18.3)	(22.5)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(23.3)	(4.5)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	15.5	8.7
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(7.8)	4.2
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(37.5)	(47.3)	(32.1)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax	3.7	(21.9)
Other Comprehensive Income (Loss), Settlement of Pension Obligation Arising During the Period, Net of Tax		2.9
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net (Gain) Loss, Net of Tax	6.1	3.8
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	9.8	(15.2)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(101.8)	(66.7)	(19.5)
Other comprehensive income (loss) before relclassification	(56.7)	(62.6)
Amounts Reclassified from Accumulated Other Comprehensive Income due to Pension Settlement Obligation		2.9
Amounts reclassified from accumulated other comprehensive income	21.6	12.5
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (35.1)	$ (47.2)	$ (9.0)