Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Total Revenue	$ 1,363	$ 1,450	$ 4,144	$ 4,458
Adjustments for non-ASC 606 revenue	(69)	(79)	(217)	(241)
Total Revenue from Contracts with Customers	1,294	1,371	3,927	4,217
Other Broadband
Disaggregation of Revenue [Line Items]
Total Revenue	226	271	715	847
Adjustments for non-ASC 606 revenue	(19)	(23)	(60)	(72)
Total Revenue from Contracts with Customers	207	248	655	775
Voice and Other
Disaggregation of Revenue [Line Items]
Total Revenue	129	145	394	451
Adjustments for non-ASC 606 revenue	(2)	(4)	(10)	(12)
Total Revenue from Contracts with Customers	127	141	384	439
Fiber Broadband
Disaggregation of Revenue [Line Items]
Total Revenue	92	120	289	365
Adjustments for non-ASC 606 revenue	(3)	(3)	(9)	(9)
Total Revenue from Contracts with Customers	89	117	280	356
Harvest
Disaggregation of Revenue [Line Items]
Total Revenue	223	261	702	803
Adjustments for non-ASC 606 revenue	(29)	(36)	(92)	(109)
Total Revenue from Contracts with Customers	194	225	610	694
Nurture
Disaggregation of Revenue [Line Items]
Total Revenue	90	96	268	295
Adjustments for non-ASC 606 revenue	(2)	(2)	(6)	(6)
Total Revenue from Contracts with Customers	88	94	262	289
Grow
Disaggregation of Revenue [Line Items]
Total Revenue	33	31	100	108
Adjustments for non-ASC 606 revenue	(2)	0	(4)	0
Total Revenue from Contracts with Customers	31	31	96	108
Affiliate Services
Disaggregation of Revenue [Line Items]
Total Revenue	570	526	1,676	1,589
Adjustments for non-ASC 606 revenue	(12)	(11)	(36)	(33)
Total Revenue from Contracts with Customers	$ 558	$ 515	$ 1,640	$ 1,556