Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information
Revenues	$ 7,223	$ 7,946	$ 21,311	$ 22,016
Depreciation and amortization	352	359	1,045	921
Impairment losses	0	0	15	0
Gain (loss) on sale of assets	208		209	202
Equity in earnings of unconsolidated affiliates	6	6	13	16
Loss on debt extinguishment	0	0	260	0
Income/(loss) before income taxes	(1,014)	408	733	(866)
Net income /(loss)	(767)	343	482	(684)
Corporate
Segment Reporting Information
Revenues	0	0	0	0
Depreciation and amortization	11	9	31	27
Impairment losses			0
Gain (loss) on sale of assets	0		0	0
Equity in earnings of unconsolidated affiliates	0	0	0	0
Loss on debt extinguishment			260
Income/(loss) before income taxes	(158)	(140)	(652)	(440)
Net income /(loss)	82	(264)	(932)	(362)
Eliminations
Segment Reporting Information
Revenues	(10)	(5)	(29)	(21)
Depreciation and amortization	0	0	0	0
Impairment losses			0
Gain (loss) on sale of assets	0		0	0
Equity in earnings of unconsolidated affiliates	0	0	0	0
Loss on debt extinguishment			0
Income/(loss) before income taxes	0	0	0	0
Net income /(loss)	0	0	0	0
Texas | Operating Segments
Segment Reporting Information
Revenues	3,301	3,686	8,297	8,235
Depreciation and amortization	81	84	240	257
Impairment losses			0
Gain (loss) on sale of assets	0		(4)	0
Equity in earnings of unconsolidated affiliates	0	0	0	0
Loss on debt extinguishment			0
Income/(loss) before income taxes	(1,056)	463	259	1,532
Net income /(loss)	(1,056)	463	259	1,532
East | Operating Segments
Segment Reporting Information
Revenues	2,600	2,809	8,647	9,488
Depreciation and amortization	39	39	117	122
Impairment losses			0
Gain (loss) on sale of assets	0		0	202
Equity in earnings of unconsolidated affiliates	0	0	0	0
Loss on debt extinguishment			0
Income/(loss) before income taxes	89	314	1,116	(1,188)
Net income /(loss)	88	316	1,116	(1,187)
West/Services/Other | Operating Segments
Segment Reporting Information
Revenues	833	978	2,962	3,244
Depreciation and amortization	23	24	96	73
Impairment losses			15
Gain (loss) on sale of assets	208		213	0
Equity in earnings of unconsolidated affiliates	6	6	13	16
Loss on debt extinguishment			0
Income/(loss) before income taxes	148	(205)	69	(684)
Net income /(loss)	148	(168)	90	(601)
Vivint Smart Home | Operating Segments
Segment Reporting Information
Revenues	499	478	1,434	1,070
Depreciation and amortization	198	203	561	442
Impairment losses			0
Gain (loss) on sale of assets	0		0	0
Equity in earnings of unconsolidated affiliates	0	0	0	0
Loss on debt extinguishment			0
Income/(loss) before income taxes	(37)	(24)	(59)	(86)
Net income /(loss)	$ (29)	$ (4)	$ (51)	$ (66)