v3.26.1
Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disaggregation of Revenue [Line Items]    
Total Revenue $ 1,051 $ 1,222
Adjustments for non-ASC 606 revenue (65) (70)
Total Revenue from Contracts with Customers 986 1,152
Other Broadband    
Disaggregation of Revenue [Line Items]    
Total Revenue 166 205
Adjustments for non-ASC 606 revenue (13) (18)
Total Revenue from Contracts with Customers 153 187
Voice and Other    
Disaggregation of Revenue [Line Items]    
Total Revenue 102 120
Adjustments for non-ASC 606 revenue (1) (4)
Total Revenue from Contracts with Customers 101 116
Fiber Broadband    
Disaggregation of Revenue [Line Items]    
Total Revenue 27 86
Adjustments for non-ASC 606 revenue (1) (3)
Total Revenue from Contracts with Customers 26 83
Strategic    
Disaggregation of Revenue [Line Items]    
Total Revenue 7 2
Adjustments for non-ASC 606 revenue (5) (2)
Total Revenue from Contracts with Customers 2 0
Legacy    
Disaggregation of Revenue [Line Items]    
Total Revenue 307 327
Adjustments for non-ASC 606 revenue (31) (31)
Total Revenue from Contracts with Customers 276 296
Affiliate Services    
Disaggregation of Revenue [Line Items]    
Total Revenue 442 482
Adjustments for non-ASC 606 revenue (14) (12)
Total Revenue from Contracts with Customers $ 428 $ 470