Long-Term Debt (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Long Term Debt
Total debt	$ 9,319,004	$ 8,846,504
Less current maturities	(75,388)	(63,706)
Total long-term debt	9,243,616	8,782,798
8.875% Senior Noted Due 2015 [Member]
Long Term Debt
Total debt	931,016	1,777,617
8% Senior Notes Due 2019 [Member]
Long Term Debt
Total debt	2,024,694	1,000,000
Term Loan A [Member]
Long Term Debt
Total debt	750,000
Term Loan B [Member]
Long Term Debt
Total debt	5,219,062	5,949,383
Revolving Credit Facility [Member]
Long Term Debt
Total debt		30,000
Receivables Facility [Member]
Long Term Debt
Total debt	300,000
Capital Lease Obligations [Member]
Long Term Debt
Total debt	48,767	48,361
Other [Member]
Long Term Debt
Total debt	$ 45,465	$ 41,143