Long-Term Debt (Details) (USD $)					0 Months Ended																					0 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 6 5/8% Senior Notes due 2014	Dec. 31, 2013 6 5/8% Senior Notes due 2014	Oct. 02, 2014 6 5/8% Senior Notes due 2014 Subsequent event	Sep. 30, 2014 7 3/4% Senior Notes due 2015	Dec. 31, 2013 7 3/4% Senior Notes due 2015	Sep. 30, 2014 7 1/8% Senior Notes due 2016	Dec. 31, 2013 7 1/8% Senior Notes due 2016	Sep. 30, 2014 4 5/8% Senior Notes due 2017	Dec. 31, 2013 4 5/8% Senior Notes due 2017	Sep. 30, 2014 4 1/4% Senior Notes due 2018	Dec. 31, 2013 4 1/4% Senior Notes due 2018	Sep. 30, 2014 7 7/8% Senior Notes due 2019	Dec. 31, 2013 7 7/8% Senior Notes due 2019	Sep. 30, 2014 5 1/8% Senior Notes due 2020	Dec. 31, 2013 5 1/8% Senior Notes due 2020	Sep. 30, 2014 6 3/4% Senior Notes due 2021	Dec. 31, 2013 6 3/4% Senior Notes due 2021	Sep. 30, 2014 5 7/8% Senior Notes due 2022	Dec. 31, 2013 5 7/8% Senior Notes due 2022	Sep. 30, 2014 5% Senior Notes due 2023	Dec. 31, 2013 5% Senior Notes due 2023	Sep. 30, 2014 Mortgages and other notes payable	Dec. 31, 2013 Mortgages and other notes payable	Feb. 20, 2014 Mortgages and other notes payable Transaction Agreement
Long-term debt
Carrying Value	$ 13,184,795,000	$ 13,430,769,000	$ 900,000,000	$ 1,000,000,000		$ 650,001,000	$ 750,000,000	$ 1,500,000,000	$ 1,500,000,000	$ 900,000,000	$ 900,000,000	$ 1,200,000,000	$ 1,200,000,000	$ 1,400,000,000	$ 1,400,000,000	$ 1,100,000,000	$ 1,100,000,000	$ 2,000,000,000	$ 2,000,000,000	$ 2,000,000,000	$ 2,000,000,000	$ 1,500,000,000	$ 1,500,000,000	$ 34,794,000	$ 80,769,000
Fair Value	13,675,792,000	14,047,013,000	900,000,000	1,040,200,000		673,564,000	813,750,000	1,591,875,000	1,657,500,000	918,099,000	946,962,000	1,207,200,000	1,221,792,000	1,589,000,000	1,603,000,000	1,127,500,000	1,104,950,000	2,146,260,000	2,122,500,000	2,040,000,000	1,997,500,000	1,447,500,000	1,458,090,000	34,794,000	80,769,000
Unamortized discounts, net	(16,142,000)	(19,198,000)
Capital lease obligations	202,357,000	220,115,000
Total long-term debt and capital lease obligations (including current portion)	13,371,010,000	13,631,686,000
Interest rate (as a percent)			6.625%			7.75%		7.125%		4.625%		4.25%		7.875%		5.125%		6.75%		5.875%		5.00%
Debt repurchased			100,000,000			100,000,000
Principal balance of debt redeemed					900,000,000
Principal balance included in Current portion of long-term debt and capital lease obligations						650,000,000
Mortgages and other obligations transferred																										$ 44,000,000