Segment Reporting (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Segment information
Number of primary operating business segments			3
Total assets	$ 43,286,892,000		$ 43,286,892,000		$ 51,413,031,000
Revenue recorded	3,568,270,000	$ 3,911,577,000	7,208,159,000	$ 7,868,559,000
Depreciation and amortization	391,110,000	266,010,000	758,184,000	511,707,000
Operating income (loss)	(31,771,000)	206,334,000	(5,792,000)	529,757,000
Interest income	10,514,000	31,725,000	23,167,000	72,258,000
Other, net (Note 4)	(64,477,000)	61,292,000	62,865,000	30,771,000
Net income (loss)	(211,824,000)	222,424,000	(222,055,000)	465,662,000
Purchases of property and equipment (including capitalized interest related to FCC authorizations)	582,297,000	1,251,521,000	1,091,176,000	2,158,126,000
Wireless services and related revenue
Segment information
Revenue recorded	785,136,000	853,918,000	1,589,401,000	1,721,029,000
Wireless equipment and related revenue
Segment information
Revenue recorded	106,395,000	74,323,000	207,980,000	182,078,000
Pay-TV video and related revenue
Segment information
Revenue recorded	2,658,381,000	2,870,694,000	5,359,560,000	5,815,176,000
Pay-TV
Segment information
Purchases of property and equipment (including capitalized interest related to FCC authorizations)	37,877,000	67,630,000	65,754,000	103,193,000
Pay-TV | Equipment sales and other revenue
Segment information
Revenue recorded	17,903,000	104,446,000	43,302,000	132,095,000
Wireless | Equipment sales and other revenue
Segment information
Revenue recorded	34,892,000	19,079,000	63,820,000	37,986,000
5 G Network Deployment
Segment information
Purchases of property and equipment (including capitalized interest related to FCC authorizations)	544,420,000	1,183,891,000	1,025,422,000	2,054,933,000
Operating segment | Pay-TV
Segment information
Total assets	50,242,951,000		50,242,951,000		49,437,958,000
Revenue recorded	2,676,284,000	2,975,140,000	5,402,862,000	5,947,271,000
Operating income (loss)	667,797,000	720,792,000	1,338,040,000	1,396,025,000
Operating segment | Retail Wireless
Segment information
Total assets	652,011,000		652,011,000		777,957,000
Revenue recorded	891,531,000	928,241,000	1,797,381,000	1,903,107,000
Operating income (loss)	(121,362,000)	(112,499,000)	(195,779,000)	(130,706,000)
Operating segment | 5 G Network Deployment
Segment information
Total assets	39,353,115,000		39,353,115,000		46,793,378,000
Revenue recorded	34,892,000	19,079,000	63,820,000	37,986,000
Operating income (loss)	(578,206,000)	(401,959,000)	(1,148,240,000)	(735,562,000)
Eliminations | All Other & Eliminations
Segment information
Total assets	(46,961,185,000)		(46,961,185,000)		$ (45,596,262,000)
Revenue recorded	(34,437,000)	(10,883,000)	(55,904,000)	(19,805,000)
Operating income (loss)			187,000
All other | Equipment sales and other revenue
Segment information
Eliminations	$ (34,437,000)	$ (10,883,000)	$ (55,904,000)	$ (19,805,000)