Long-Term Debt Long-Term Debt - Notes (Details) (USD $)	12 Months Ended						3 Months Ended			6 Months Ended				12 Months Ended					3 Months Ended						12 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Term loans [Domain]	Dec. 31, 2013 Term Loan B1 [Domain]	Dec. 31, 2013 Term loan B2 [Domain]	Mar. 31, 2012 7.75% Senior Subordinated Notes Due 2022	Dec. 31, 2013 7.75% Senior Subordinated Notes Due 2022	Dec. 31, 2012 7.75% Senior Subordinated Notes Due 2022	Jun. 30, 2010 8.75% Senior Subordinated Notes due 2020	Dec. 31, 2013 8.75% Senior Subordinated Notes due 2020	Dec. 31, 2012 8.75% Senior Subordinated Notes due 2020	Dec. 31, 2010 8.75% Senior Subordinated Notes due 2020	Dec. 31, 2013 8.625% Senior Notes Due 2017	Dec. 31, 2012 8.625% Senior Notes Due 2017	Aug. 31, 2009 8.625% Senior Notes Due 2017	Dec. 31, 2013 Senior Secured Credit Facility	Dec. 31, 2013 Senior Notes due 2021 [Domain]	Sep. 30, 2013 Senior Notes Due 2021 [Member]	Dec. 31, 2013 Senior Notes Due 2021 [Member]	Dec. 31, 2013 Senior Notes Due April 2021 [Member]	Aug. 31, 2013 Senior Notes Due April 2021 [Member]	Apr. 30, 2013 Senior Notes Due April 2021 [Member]	Dec. 31, 2013 Letter of Credit [Member]	Dec. 31, 2013 7.50% Senior Subordinated Notes due 2015	Dec. 31, 2012 7.50% Senior Subordinated Notes due 2015	Jun. 30, 2007 7.50% Senior Subordinated Notes due 2015	Dec. 31, 2013 Credit Spread Option	Dec. 31, 2013 On or after May 15 2015 8.75% Senior Subordinated Notes due 2020	Dec. 31, 2013 On or after April 1 2017 7.75% Senior Subordinated Notes Due 2022	Dec. 31, 2013 On or after May 15 2016 8.75% Senior Subordinated Notes due 2020	Dec. 31, 2013 On or after April 1 2018 7.75% Senior Subordinated Notes Due 2022	Dec. 31, 2013 On or after May 15 2017 8.75% Senior Subordinated Notes due 2020	Dec. 31, 2013 On or after April 1 2019 7.75% Senior Subordinated Notes Due 2022	Dec. 31, 2013 On or after May 15 2018 and thereafter 8.75% Senior Subordinated Notes due 2020	Dec. 31, 2013 On or after April 1 2020 and thereafter 7.75% Senior Subordinated Notes Due 2022
Long-term Debt
Line of Credit Facility, Maximum Borrowing Capacity				$ 1,600,000,000	$ 500,000,000	$ 1,100,000,000
Stated percentage								7.75%			8.75%					8.625%				6.375%	7.50%						7.50%
Premium Included In Recorded Fair Value Of Senior Notes																					72,800,000
Proceeds from Issuance of Senior Long-term Debt	850,000,000	646,750,000	0				318,000,000			341,500,000									835,000,000
Debt Instrument, Consent Fee																					19,600,000	9,800,000	9,800,000
Line of Credit Facility, Covenant Maximum Consolidated Total Leverage																	8.0
Line of Credit Facility Covenant Minimum Consolidated Interest Coverage Ratio																	2.0
Line Of Credit Facility Covenant Maximum Consolidated Senior Secured Debt Ratio																	3.5
Line Of Credit Facility Covenant Maximum Senior Unsecured Debt Allowed																	3,500,000,000
Line Of Credit Facility Covenant Maximum Consolidated Ratio Allowed For Increase In Unsecured Borrowings																	6.0
Long-term Debt	4,380,100,000	1,440,500,000						325,000,000	325,000,000		350,000,000	350,000,000	350,000,000		445,800,000		493,600,000	850,000,000			1,098,500,000
Line of Credit Facility, Amount Outstanding																								8,600,000
Debt Instrument, Face Amount								325,000,000								450,000,000					1,040,000,000					385,000,000
Repayments of Long-term Debt	1,205,435,000	495,000,000	53,104,000	230,000,000																						407,000,000
Senior indebtedness and secured indebtedness limit											1,500,000,000
Basis Spread on Interest Rate																												0.50%
Note redeemable at a percentage of par																									103.75%				104.375%	103.875%	102.917%	102.583%	101.458%	101.292%	100.00%	100.00%
Early Repayment of Senior Debt																										10,000,000
Loss on early extinguishment of debt	$ (30,830,000)	$ (20,718,000)	$ (183,000)											$ (30,800,000)												$ (20,700,000)