Indebtedness (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended								12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 Term loan 1	Dec. 31, 2011 Term loan 1	Dec. 31, 2011 Term loan 2	Dec. 31, 2011 Term loan 2	Dec. 31, 2011 Domestic revolving credit facility	Jun. 30, 2011 Domestic revolving credit facility	Dec. 31, 2011 6.875% senior notes	Dec. 31, 2010 6.875% senior notes	Dec. 31, 2011 7.625% senior notes	Dec. 31, 2010 7.625% senior notes	Dec. 31, 2007 7.625% senior notes	Dec. 31, 2011 7.50% senior notes	Dec. 31, 2011 6.25% senior notes	Dec. 31, 2011 Trade receivables financing arrangement	Dec. 31, 2011 Other indebtedness	Dec. 31, 2010 Other indebtedness	Dec. 31, 2011 Other indebtedness Clyde Union	Jun. 30, 2011 Global revolving credit facility
Debt
Balance at the beginning of the period	$ 1,197.6								$ 600.0	$ 600.0	$ 500.0	$ 500.0		$ 28.2	$ 21.3		$ 48.1
Borrowings	2,004.7		300.0	300.0	500.0	500.0	1,050.0									118.0	5.6
Repayments	(1,220.3)						(1,050.0)							(28.2)	(21.3)	(118.0)	(2.8)
Other	19.1																19.3
Balance at the end of the period	2,001.1								600.0	600.0	500.0	500.0					70.2
Short-term debt	71.3	36.3
Current maturities of long-term debt	4.2	50.8
Total long-term debt	1,925.6	1,110.5
Interest rate percentage									6.875%		7.625%		7.625%	7.50%	6.25%
Purchase card program	40.4	36.1															40.4	36.1
Maximum borrowing capacity under financing arrangement								300.0								130.0				300.0
Debt assumed in acquisition																			$ 14.5