v3.24.0.1
Revenue from Contracts with Customers (Tables)
 12 Months Ended
Dec. 31, 2023
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue
Postpaid service revenues, including postpaid phone revenues and postpaid other revenues, were as follows:
Year Ended December 31,
(in millions)202320222021
Postpaid service revenues
Postpaid phone revenues$43,449 $41,711 $39,154 
Postpaid other revenues5,243 4,208 3,408 
Total postpaid service revenues$48,692 $45,919 $42,562 
Schedule of Contract Liability and Receivable Balances
The contract asset and contract liability balances from contracts with customers as of December 31, 2023, and 2022, were as follows:
(in millions)Contract
Assets		Contract
Liabilities
Balance as of December 31, 2022$534 $748 
Balance as of December 31, 2023607 812 
Change$73 $64 
Revenues for the years ended December 31, 2023, 2022 and 2021 include the following:
Year Ended December 31,
(in millions)202320222021
Amounts included in the beginning of year contract liability balance$747 $760 $767