Debt and Financing Arrangements (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Other	$ 51,382,000us-gaap_OtherLongTermDebt	$ 56,031,000us-gaap_OtherLongTermDebt
Total	5,152,350,000us-gaap_DebtAndCapitalLeaseObligations	5,160,370,000us-gaap_DebtAndCapitalLeaseObligations
Current maturities of debt	34,368,000us-gaap_DebtCurrent	36,885,000us-gaap_DebtCurrent
Long-term debt	5,117,982,000us-gaap_LongTermDebtNoncurrent	5,123,485,000us-gaap_LongTermDebtNoncurrent
Available borrowing capacity under lines of credit	179,400,000
Loans Payable [Member]
Debt Instrument [Line Items]
Term loan due 2018 ($1.9 billion face value)	1,886,971,000	1,890,846,000
Debt Instrument, Face Amount	1,900,000,000	1,900,000,000
7.00% Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Senior notes	1,000,000,000	1,000,000,000
Senior notes interest rate	7.00%
9.875% Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Senior notes	363,997,000	363,493,000
Senior notes interest rate	9.875%
Debt Instrument, Face Amount	375,000,000	375,000,000
8.00% Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Senior notes	350,000,000	350,000,000
Senior notes interest rate	8.00%
7.25% Senior Notes Due 2020 [Member]
Debt Instrument [Line Items]
Senior notes	500,000,000	500,000,000
Senior notes interest rate	7.25%
7.25% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Senior notes	$ 1,000,000,000	$ 1,000,000,000
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, and capital lease obligations.

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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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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