v3.23.2
Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Disaggregation of revenue        
Revenue from contracts with customers $ 932 $ 1,004 $ 1,892 $ 1,992
Operating lease income 25 23 50 45
Total operating revenues 957 1,027 1,942 2,037
Transferred over time        
Disaggregation of revenue        
Revenue from contracts with customers 735 760 1,477 1,525
Transferred over time | Retail service        
Disaggregation of revenue        
Revenue from contracts with customers 686 700 1,378 1,402
Transferred over time | Inbound roaming        
Disaggregation of revenue        
Revenue from contracts with customers 8 18 17 39
Transferred over time | Other service        
Disaggregation of revenue        
Revenue from contracts with customers 41 42 82 84
Transferred at point in time | Equipment sales        
Disaggregation of revenue        
Revenue from contracts with customers $ 197 $ 244 $ 415 $ 467