Long-Term Debt (Schedule of Debt) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Debt	$ 9,538,184	$ 9,541,305
Current maturities of long-term debt	(113,801)	(89,911)
Long-term debt	9,424,383	9,451,394
Secured Debt [Member] \| Credit Facility, Term Loan A [Member]
Debt Instrument [Line Items]
Debt	712,500	712,500
Secured Debt [Member] \| Credit Facility, Term Loan B, Initial Funding [Member]
Debt Instrument [Line Items]
Debt	3,412,584	3,619,062
Senior Notes [Member] \| Senior Notes at 8.0, Due 2019 [Member]
Debt Instrument [Line Items]
Debt	2,022,228	2,022,829
Senior Notes [Member] \| Senior Notes at 7.125, Due 2020 [Member]
Debt Instrument [Line Items]
Debt	1,200,000	1,200,000
Senior Secured Notes [Member] \| Senior Secured Notes At 5.125 Due 2018 [Member]
Debt Instrument [Line Items]
Debt	1,600,000	1,600,000
Receivables Facility [Member] \| Receivables Facility, Name [Member]
Debt Instrument [Line Items]
Debt	500,000	300,000
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Debt	47,037	47,951
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt	$ 43,835	$ 38,963

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13,16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

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 or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section H

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- Definition

Obligation related to long-term debt (excluding convertible debt) and capital leases, the portion which is due in one year or less in the future.

+ References

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