Debt (Debt) (Details) (USD $)	9 Months Ended
Sep. 30, 2011	Dec. 31, 2010
Commercial paper		$ 56,904,000
Indebtedness to banks under credit facilities	340,000,000
Other	8,858,000	14,093,000
Total	3,888,486,000	1,609,741,000
Less current maturities of debt and short-term borrowings	47,156,000	70,997,000
Long-term debt	3,841,330,000	1,538,744,000
7.00% Senior Notes Due June 15, 2019 [Member]
Senior notes	1,000,000,000
Senior notes interest rate	7.00%
Due date of senior notes	Jun. 15, 2019
7.25% Senior Notes Due June 15, 2021 [Member]
Senior notes	1,000,000,000
Senior notes interest rate	7.25%
Due date of senior notes	Jun. 15, 2021
6.75% Senior Notes Due July 1, 2013 [Member]
Senior notes	451,132,000	451,618,000
Face value of senior notes	450,000,000
Senior notes interest rate	6.75%
Due date of senior notes	Jul. 01, 2013
8.75% Senior Notes Due August 1, 2016 [Member]
Senior notes	588,496,000	587,126,000
Face value of senior notes	600,000,000
Senior notes interest rate	8.75%
Due date of senior notes	Aug. 01, 2016
7.25% Senior Notes Due October 1, 2020 [Member]
Senior notes	$ 500,000,000	$ 500,000,000
Senior notes interest rate	7.25%

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, collateralized financings, and capital lease obligations.

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Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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Carrying value as of the balance sheet date of the sum of short-term debt and current maturities of long-term debt and capital lease obligations, which are due within one year (or one business cycle if longer).

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The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

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Interest rate stated in the contractual debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).

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-Publisher FASB

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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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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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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Including the current and noncurrent portions, 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). Senior note holders are paid off in full before any payments are made to junior note holders.

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