v3.25.2
Receivables and Related Allowance for Credit Losses - Schedule of Equipment Installment Plan Receivables by Credit Category (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]    
EIP receivables, net of unamortized imputed discount $ 6,491 $ 6,878
Prime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 2,298  
Originated in 2024 2,500  
Originated prior to 2024 330  
EIP receivables, net of unamortized imputed discount 5,128  
Subprime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 607  
Originated in 2024 676  
Originated prior to 2024 80  
EIP receivables, net of unamortized imputed discount 1,363  
Current - 30 days past due    
Financing Receivable, Credit Quality Indicator [Line Items]    
EIP receivables, net of unamortized imputed discount 6,351  
Current - 30 days past due | Prime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 2,278  
Originated in 2024 2,469  
Originated prior to 2024 324  
EIP receivables, net of unamortized imputed discount 5,071  
Current - 30 days past due | Subprime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 578  
Originated in 2024 628  
Originated prior to 2024 74  
EIP receivables, net of unamortized imputed discount 1,280  
31 - 60 days past due    
Financing Receivable, Credit Quality Indicator [Line Items]    
EIP receivables, net of unamortized imputed discount 61  
31 - 60 days past due | Prime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 12  
Originated in 2024 12  
Originated prior to 2024 2  
EIP receivables, net of unamortized imputed discount 26  
31 - 60 days past due | Subprime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 15  
Originated in 2024 18  
Originated prior to 2024 2  
EIP receivables, net of unamortized imputed discount 35  
61 - 90 days past due    
Financing Receivable, Credit Quality Indicator [Line Items]    
EIP receivables, net of unamortized imputed discount 43  
61 - 90 days past due | Prime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 5  
Originated in 2024 10  
Originated prior to 2024 2  
EIP receivables, net of unamortized imputed discount 17  
61 - 90 days past due | Subprime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 9  
Originated in 2024 15  
Originated prior to 2024 2  
EIP receivables, net of unamortized imputed discount 26  
More than 90 days past due    
Financing Receivable, Credit Quality Indicator [Line Items]    
EIP receivables, net of unamortized imputed discount 36  
More than 90 days past due | Prime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 3  
Originated in 2024 9  
Originated prior to 2024 2  
EIP receivables, net of unamortized imputed discount 14  
More than 90 days past due | Subprime    
Financing Receivable, Credit Quality Indicator [Line Items]    
Originated in 2025 5  
Originated in 2024 15  
Originated prior to 2024 2  
EIP receivables, net of unamortized imputed discount $ 22