v3.26.1
Sales Of Receivables (Finance Receivables Repurchased) (Details) - Equipment Installment - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Fair value of repurchased receivables $ 725 $ 1,937
Carrying value of beneficial interests 726 1,933
Gain on repurchases $ (1) $ 4