Sales Of Receivables (Finance Receivables Sold) (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] | ||||
| Gross receivables sold | $ 2,469 | $ 2,968 | $ 7,930 | $ 8,215 |
| Net receivables sold | 2,340 | 2,842 | 7,535 | 7,834 |
| Cash proceeds received | 2,442 | 2,937 | 7,848 | 8,122 |
| Guarantee obligation recorded | $ 199 | $ 249 | $ 682 | $ 697 |