Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (26.9)	$ (28.5)	$ 37.8
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	24.0	(7.9)	(63.6)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	10.0	9.5	(2.7)
Other comprehensive income (loss)	34.0	1.6	(66.3)
Accumulated other comprehensive loss	7.1	(26.9)	(28.5)
Pension and Other Post-Employment Benefits
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(109.8)	(99.6)	(70.2)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	51.8	(19.7)	(26.7)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	8.7	9.5	(2.7)
Other comprehensive income (loss)	60.5	(10.2)	(29.4)
Accumulated other comprehensive loss	(49.3)	(109.8)	(99.6)
Accumulated translation adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	102.4	90.3	114.8
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(48.8)	12.1	(24.5)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	1.3	0	0
Other comprehensive income (loss)	(47.5)	12.1	(24.5)
Accumulated other comprehensive loss	54.9	102.4	90.3
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(19.4)	(19.4)	(6.8)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	(12.6)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0	0
Other comprehensive income (loss)	0	0	(12.6)
Accumulated other comprehensive loss	(19.4)	(19.4)	(19.4)
Accumulated Net Unrealized Investment Gain (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(0.1)	0.2	0.1
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	21.0	(0.3)	0.2
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0	0
Other comprehensive income (loss)	21.0	(0.3)	0.2
Accumulated other comprehensive loss	$ 20.9	$ (0.1)	$ 0.2