Loans - Credit Card Loan Portfolio, Payment Status of FDMs and Defaults of FDMs (Details) - Credit card $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2026
USD ($)
|
Sep. 30, 2025
USD ($)
|
Sep. 30, 2026
USD ($)
loan_payment
|
Sep. 30, 2025
USD ($)
|
|
| Financing Receivable, Modified [Line Items] | ||||
| Amortized cost of FDMs during the last 12 months | $ 2,859 | $ 1,642 | $ 2,859 | $ 1,642 |
| FDM's that defaulted | 127 | 56 | $ 179 | 75 |
| Number of payments past due considered payment default for modified loans | loan_payment | 2 | |||
| Current and less than 30 days past due and still accruing | ||||
| Financing Receivable, Modified [Line Items] | ||||
| Amortized cost of FDMs during the last 12 months | 2,527 | 1,438 | $ 2,527 | 1,438 |
| 30–89 days past due and still accruing | ||||
| Financing Receivable, Modified [Line Items] | ||||
| Amortized cost of FDMs during the last 12 months | 215 | 134 | 215 | 134 |
| 90 or more days past due and still accruing | ||||
| Financing Receivable, Modified [Line Items] | ||||
| Amortized cost of FDMs during the last 12 months | $ 117 | $ 70 | $ 117 | $ 70 |