Financing (Details) (USD $) In Millions	Dec. 31, 2010	Dec. 31, 2009
Long-term debt
Senior notes	$ 2,493.6	$ 2,492.3
Revolving credit facility due August 13, 2013	0	0
Other	0.2	0.3
Total debt	2,493.8	3,832.6
Less current maturities	0.1	1,340.1
Long-term debt	2,493.7	2,492.5
Term A Loans [Member]
Long-term debt
Term loans due October 14, 2010	0	540.0
Term 1 Loans [Member]
Long-term debt
Term loans due October 14, 2010	0	800.0
5.25% senior notes due 2012, net of unamortized discount
Long-term debt
Senior notes	999.6	999.4
6.25% senior notes due 2014, net of unamortized discount
Long-term debt
Senior notes	996.9	996.1
7.25% senior notes due 2019, net of unamortized discount
Long-term debt
Senior notes	$ 497.1	$ 496.8

Amount borrowed under the credit facility as of the balance-sheet date.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Including both current and noncurrent portions, carrying amount as of the balance-sheet date of other forms of debt not elsewhere specified in the taxonomy with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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