Long-Term Debt (Details) (USD $)																									0 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 6 5/8% Senior Notes due 2014	Dec. 31, 2013 6 5/8% Senior Notes due 2014	Mar. 31, 2014 7 3/4% Senior Notes due 2015	Dec. 31, 2013 7 3/4% Senior Notes due 2015	Mar. 31, 2014 7 1/8% Senior Notes due 2016	Dec. 31, 2013 7 1/8% Senior Notes due 2016	Mar. 31, 2014 4 5/8% Senior Notes due 2017	Dec. 31, 2013 4 5/8% Senior Notes due 2017	Mar. 31, 2014 4 1/4% Senior Notes due 2018	Dec. 31, 2013 4 1/4% Senior Notes due 2018	Mar. 31, 2014 7 7/8% Senior Notes due 2019	Dec. 31, 2013 7 7/8% Senior Notes due 2019	Mar. 31, 2014 5 1/8% Senior Notes due 2020	Dec. 31, 2013 5 1/8% Senior Notes due 2020	Mar. 31, 2014 6 3/4% Senior Notes due 2021	Dec. 31, 2013 6 3/4% Senior Notes due 2021	Mar. 31, 2014 5 7/8% Senior Notes due 2022	Dec. 31, 2013 5 7/8% Senior Notes due 2022	Mar. 31, 2014 5% Senior Notes due 2023	Dec. 31, 2013 5% Senior Notes due 2023	Mar. 31, 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	$ 13,365,656,000	$ 13,409,313,000	$ 1,000,000,000	$ 1,000,000,000	$ 750,000,000	$ 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	$ 15,656,000	$ 59,313,000
Fair Value	14,404,520,000	14,025,557,000	1,026,880,000	1,040,200,000	804,563,000	813,750,000	1,642,500,000	1,657,500,000	957,600,000	946,962,000	1,253,400,000	1,221,792,000	1,659,700,000	1,603,000,000	1,144,121,000	1,104,950,000	2,249,500,000	2,122,500,000	2,143,400,000	1,997,500,000	1,507,200,000	1,458,090,000	15,656,000	59,313,000
Capital lease obligations	213,208,000	219,902,000
Total long-term debt and capital lease obligations (including current portion)	13,578,864,000	13,629,215,000
Interest rate (as a percent)			6.625%	6.625%	7.75%	7.75%	7.125%	7.125%	4.625%	4.625%	4.25%	4.25%	7.875%	7.875%	5.125%	5.125%	6.75%	6.75%	5.875%	5.875%	5.00%	5.00%
Principal balance reclassified to current portion of long-term debt and capital lease obligations			1,000,000,000
Decrease in mortgages and other notes payable																									$ 44,000,000