Long-Term Debt (Details) (USD $)	6 Months Ended																								0 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 6 5/8% Senior Notes due 2014	Dec. 31, 2013 6 5/8% Senior Notes due 2014	Jun. 30, 2014 7 3/4% Senior Notes due 2015	Dec. 31, 2013 7 3/4% Senior Notes due 2015	Jun. 30, 2014 7 1/8% Senior Notes due 2016	Dec. 31, 2013 7 1/8% Senior Notes due 2016	Jun. 30, 2014 4 5/8% Senior Notes due 2017	Dec. 31, 2013 4 5/8% Senior Notes due 2017	Jun. 30, 2014 4 1/4% Senior Notes due 2018	Dec. 31, 2013 4 1/4% Senior Notes due 2018	Jun. 30, 2014 7 7/8% Senior Notes due 2019	Dec. 31, 2013 7 7/8% Senior Notes due 2019	Jun. 30, 2014 5 1/8% Senior Notes due 2020	Dec. 31, 2013 5 1/8% Senior Notes due 2020	Jun. 30, 2014 6 3/4% Senior Notes due 2021	Dec. 31, 2013 6 3/4% Senior Notes due 2021	Jun. 30, 2014 5 7/8% Senior Notes due 2022	Dec. 31, 2013 5 7/8% Senior Notes due 2022	Jun. 30, 2014 5% Senior Notes due 2023	Dec. 31, 2013 5% Senior Notes due 2023	Jun. 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	$ 13,272,195,000	$ 13,430,769,000	$ 901,986,000	$ 1,000,000,000	$ 734,133,000	$ 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	$ 36,076,000	$ 80,769,000
Fair Value	14,395,081,000	14,047,013,000	915,335,000	1,040,200,000	777,726,000	813,750,000	1,633,125,000	1,657,500,000	961,605,000	946,962,000	1,249,200,000	1,221,792,000	1,666,000,000	1,603,000,000	1,159,389,000	1,104,950,000	2,290,000,000	2,122,500,000	2,172,500,000	1,997,500,000	1,534,125,000	1,458,090,000	36,076,000	80,769,000
Unamortized discounts, net	(17,177,000)	(19,198,000)
Capital lease obligations	206,527,000	220,115,000
Total long-term debt and capital lease obligations (including current portion)	13,461,545,000	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			98,000,000		16,000,000
Principal balance reclassified to Current portion of long-term debt and capital lease obligations			902,000,000		734,000,000
Mortgages and other obligations transferred	$ 44,540,000																								$ 44,000,000