v3.25.1
Revenue from Contracts with Customers (Tables)
 3 Months Ended
Mar. 31, 2025
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:
Three Months Ended March 31,
(in millions)20252024
Postpaid service revenues
Postpaid phone revenues$11,733 $11,145 
Postpaid other revenues1,861 1,486 
Total postpaid service revenues$13,594 $12,631 
Schedule of Contract Liability and Receivable Balances
The contract asset and contract liability balances from contracts with customers as of March 31, 2025, and December 31, 2024, were as follows:
(in millions)Contract
Assets		Contract
Liabilities
Balance as of December 31, 2024$720 $1,219 
Balance as of March 31, 2025800 1,192 
Change$80 $(27)
Revenues for the three months ended March 31, 2025 and 2024, include the following:
Three Months Ended March 31,
(in millions)20252024
Amounts included in the beginning of year contract liability balance$903 $698