v3.25.3
Sales of Certain Receivables - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Variable Interest Entity [Line Items]          
Losses from sales of receivables $ 17 $ 23 $ 58 $ 69  
Variable Interest Entity, Primary Beneficiary | Collateral Pledged | Service Receivable Sale Arrangement          
Variable Interest Entity [Line Items]          
Gross receivables 523   523   $ 286
EIP Securitization Arrangement          
Variable Interest Entity [Line Items]          
Revolving receivables facility, maximum borrowing capacity 1,300   1,300   1,300
Factoring Arrangement | Variable Interest Entity, Not Primary Beneficiary          
Variable Interest Entity [Line Items]          
Revolving receivables facility, outstanding borrowings 775   775   775
Factoring and EIP Securitization Arrangement | Variable Interest Entity, Primary Beneficiary          
Variable Interest Entity [Line Items]          
Losses from sales of receivables 17 $ 23 58 $ 69  
Factoring and EIP Securitization Arrangement | Variable Interest Entity, Primary Beneficiary | Collateral Pledged | EIP Sale Arrangement          
Variable Interest Entity [Line Items]          
Gross EIP receivables 535   535   505
Factoring and EIP Securitization Arrangement | Level 3 | Carrying Amount | Variable Interest Entity, Primary Beneficiary          
Variable Interest Entity [Line Items]          
Carrying amounts of deferred purchase price assets $ 137   $ 137   $ 148