Fair Value of Financial Instruments (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2011 Fair value measurement on recurring basis Level 1	Dec. 31, 2010 Fair value measurement on recurring basis Level 1	Sep. 30, 2011 Fair value measurement on recurring basis Level 1 Foreign exchange contracts	Dec. 31, 2010 Fair value measurement on recurring basis Level 1 Foreign exchange contracts	Sep. 30, 2011 Fair value measurement on recurring basis Level 2	Dec. 31, 2010 Fair value measurement on recurring basis Level 2	Sep. 30, 2011 Fair value measurement on recurring basis Level 2 Commodity contracts	Dec. 31, 2010 Fair value measurement on recurring basis Level 2 Commodity contracts	Sep. 30, 2011 Fair value measurement on recurring basis Level 2 Interest rate cap contracts	Sep. 30, 2011 Fair value measurement on recurring basis Level 2 Interest rate swap contracts - Fixed-to-float/Float-to-fixed	Dec. 31, 2010 Fair value measurement on recurring basis Level 2 Interest rate swap contracts - Fixed-to-float/Float-to-fixed	Sep. 30, 2011 Fair value measurement on recurring basis Total	Dec. 31, 2010 Fair value measurement on recurring basis Total	Sep. 30, 2011 Fair value measurement on recurring basis Total Foreign exchange contracts	Dec. 31, 2010 Fair value measurement on recurring basis Total Foreign exchange contracts	Sep. 30, 2011 Fair value measurement on recurring basis Total Commodity contracts	Dec. 31, 2010 Fair value measurement on recurring basis Total Commodity contracts	Sep. 30, 2011 Fair value measurement on recurring basis Total Interest rate cap contracts	Sep. 30, 2011 Fair value measurement on recurring basis Total Interest rate swap contracts - Fixed-to-float/Float-to-fixed	Dec. 31, 2010 Fair value measurement on recurring basis Total Interest rate swap contracts - Fixed-to-float/Float-to-fixed	Sep. 30, 2011 Senior Notes 7.125% due 2013	Dec. 31, 2010 Senior Notes 7.125% due 2013	Sep. 30, 2011 Senior Notes 9.5 % due 2018	Dec. 31, 2010 Senior Notes 9.5 % due 2018	Sep. 30, 2011 Senior Notes 8.5 % due 2020	Dec. 31, 2010 Senior Notes 8.5 % due 2020	Sep. 30, 2011 Term loan A	Dec. 31, 2010 Term loan A	Sep. 30, 2011 Term loan B	Dec. 31, 2010 Term loan B	Sep. 30, 2011 New Senior credit facility	May 13, 2011 New Senior credit facility
Financial assets and liabilities accounted for at fair value on a recurring basis
Current derivative assets at fair value					$ 0.6	$ 2.3				$ 1.1						$ 0.6	$ 2.3		$ 1.1
Marketable securities	2.7	2.7	2.7	2.7										2.7	2.7
Total current assets	1,451.6	1,160.6	3.3	5.0				1.1						3.3	6.1
Non-current derivative assets at fair value											0.4									0.4
Total non-current assets at fair value							0.4							0.4
Derivative liabilities, current	9.5	1.0			6.6	0.6			2.8	0.3						6.6	0.6	2.8	0.3
Total current liabilities	1,186.9	1,025.5	6.6	0.6			2.8	0.3						9.4	0.9
Non-current derivative liabilities at fair value												14.9	38.4								14.9	38.4
Total non-current liabilities	2,517.0	2,505.3					14.9	38.4						14.9	38.4
Maximum borrowing capacity under revolving credit facility																																	1,250.0	1,250.0
Debt instruments at fair value																							$ 147.0	$ 152.4	$ 392.0	$ 438.8	$ 546.0	$ 645.0	$ 328.7	$ 461.2	$ 385.5	$ 342.0