Long-Term Debt (Schedule of Debt) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Debt	$ 9,548,679	$ 9,541,305
Current maturities of long-term debt	(180,386)	(89,911)
Long-term debt	9,368,293	9,451,394
Secured Debt [Member] | Credit Facility, Term Loan A [Member]
Debt Instrument [Line Items]
Debt	656,250	712,500
Secured Debt [Member] | Credit Facility, Term Loan B, Initial Funding [Member]
Debt Instrument [Line Items]
Debt	3,412,584	3,619,062
Line of Credit [Member] | Credit Facility, Revolving Credit Loans [Member]
Debt Instrument [Line Items]
Debt	87,000
Senior Notes [Member] | Senior Notes at 8.0, Due 2019 [Member]
Debt Instrument [Line Items]
Debt	2,020,986	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	482,000	300,000
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Debt	47,857	47,951
Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt	$ 42,002	$ 38,963