Sales Of Receivables (Finance Receivables Repurchased) (Details) - Equipment Installment - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Fair value of repurchased receivables | $ 951 | $ 732 | $ 2,393 | $ 2,038 |
| Carrying value of beneficial interests | 956 | 740 | 2,420 | 2,051 |
| Gain on repurchases | $ (5) | $ (8) | $ (27) | $ (13) |