Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total Revenue	$ 1,222	$ 1,392
Adjustments for non-ASC 606 revenue	(70)	(74)
Total Revenue from Contracts with Customers	1,152	1,318
Other Broadband
Disaggregation of Revenue [Line Items]
Total Revenue	205	252
Adjustments for non-ASC 606 revenue	(18)	(21)
Total Revenue from Contracts with Customers	187	231
Voice and Other
Disaggregation of Revenue [Line Items]
Total Revenue	120	133
Adjustments for non-ASC 606 revenue	(4)	(4)
Total Revenue from Contracts with Customers	116	129
Fiber Broadband
Disaggregation of Revenue [Line Items]
Total Revenue	86	99
Adjustments for non-ASC 606 revenue	(3)	(3)
Total Revenue from Contracts with Customers	83	96
Harvest
Disaggregation of Revenue [Line Items]
Total Revenue	211	239
Adjustments for non-ASC 606 revenue	(29)	(32)
Total Revenue from Contracts with Customers	182	207
Nurture
Disaggregation of Revenue [Line Items]
Total Revenue	84	89
Adjustments for non-ASC 606 revenue	(2)	(2)
Total Revenue from Contracts with Customers	82	87
Grow
Disaggregation of Revenue [Line Items]
Total Revenue	34	34
Adjustments for non-ASC 606 revenue	(2)	0
Total Revenue from Contracts with Customers	32	34
Affiliate Services
Disaggregation of Revenue [Line Items]
Total Revenue	482	546
Adjustments for non-ASC 606 revenue	(12)	(12)
Total Revenue from Contracts with Customers	$ 470	$ 534