Comprehensive (Loss) Income (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Components of accumulated other comprehensive income (loss)
Accumulated comprehensive income (loss) net of tax, Total, Beginning balance	$ 30.2	$ (0.8)	$ (98.8)
Net change in currency translation and pension and postretirement liability during the period, Foreign Currency Translation Adjustment	(17.7)	28.2	59.5
Net change in currency translation and pension and postretirement liability during the period, Pension and Postretirement Liability	(24.3)	(13.3)	8.1
Net change in currency translation and pension and postretirement liability during the period, Total	(42.0)	14.9	67.6
Net change associated with derivative and other transactions	(12.9)	27.5	10.7
Reclassification of derivative gains into earnings	(12.4)	(11.4)	19.7
Accumulated comprehensive income (loss) net of tax, Total, Ending balance	(37.1)	30.2	(0.8)
Foreign Currency Translation Adjustment [Member]
Components of accumulated other comprehensive income (loss)
Accumulated comprehensive income (loss) net of tax, Foreign Currency Translation Adjustment, Beginning balance	121.5	93.3	33.8
Net change in currency translation and pension and postretirement liability during the period, Foreign Currency Translation Adjustment	(17.7)	28.2	59.5
Accumulated comprehensive income (loss) net of tax, Foreign Currency Translation Adjustment, Ending balance	103.8	121.5	93.3
Pension and Postretirement Liability [Member]
Components of accumulated other comprehensive income (loss)
Accumulated comprehensive income (loss) net of tax, Pension and Postretirement Liability, Beginning balance	(116.7)	(103.4)	(111.5)
Net change in currency translation and pension and postretirement liability during the period, Pension and Postretirement Liability	(24.3)	(13.3)	8.1
Accumulated comprehensive income (loss) net of tax, Pension and Postretirement Liability, Ending balance	(141.0)	(116.7)	(103.4)
Derivatives and Other [Member]
Components of accumulated other comprehensive income (loss)
Accumulated comprehensive income (loss) net of tax, Derivatives and Other, Beginning balance	25.4	9.3	(21.1)
Net change associated with derivative and other transactions	(12.9)	27.5	10.7
Reclassification of derivative gains into earnings	(12.4)	(11.4)	19.7
Accumulated comprehensive income (loss) net of tax, Derivatives and Other, Ending balance	$ 0.1	$ 25.4	$ 9.3