Comprehensive Income (Details) (USD $) In Millions	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Comprehensive Income [Abstract]
Net income (loss)	$ (15.0)	$ 8.8	$ (18.3)	$ 51.6
Other comprehensive (loss) income, net of tax [Abstract]
Change in fair value of derivatives utilized for hedging purposes, net of tax	39.9	(8.7)	29.8	8.4
Reclassification of change in fair value of derivatives to net income, net of tax	5.0	4.5	19.4	13.1
Foreign currency translation adjustments, net of tax	(16.9)	6.6	(10.5)	3.6
Adjustments to pension and other postretirement benefit plan liabilities, net of tax	0	0	(1.4)	(0.2)
Total other comprehensive (loss) income	28.0	2.4	37.3	24.9
Comprehensive income	13.0	11.2	19.0	76.5
Other comprehensive (loss) income, tax [Abstract]
Change in fair value of derivatives utilized for hedging purposes, tax	22.4	(5.0)	16.8	4.7
Reclassification of change in fair value of derivatives to net income, tax	3.0	2.6	11.0	7.4
Foreign currency translation adjustments, tax	(9.5)	3.7	(5.9)	2.0
Adjustments to pension and other postretirement benefit plan liabilities, tax	$ 0	$ 0	$ 0.8	$ 0.1

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The increase (decrease) in accumulated comprehensive income during the period related to pension and other postretirement benefit plans, after tax. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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Net of tax effect of the reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period.

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