Receivables - Carrying Amount of Receivables (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] | ||
| Total | $ 13,094 | $ 13,938 |
| Retail | ||
| Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] | ||
| Total | 8,041 | 8,692 |
| Wholesale | ||
| Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] | ||
| Total | $ 5,053 | $ 5,246 |