Loans, Lending Commitments and Related Allowance for Credit Losses - Narrative (Details) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2026
USD ($)
loan
|
Mar. 31, 2025
USD ($)
loan
|
Dec. 31, 2025
USD ($)
|
|
| Financing Receivable, Modified [Line Items] | |||
| Past due loans | $ 277,857 | $ 269,852 | |
| 90+ days past due | |||
| Financing Receivable, Modified [Line Items] | |||
| Past due loans | 0 | $ 63 | |
| Residential real estate | |||
| Financing Receivable, Modified [Line Items] | |||
| Past due loans | $ 73,529 | 72,403 | |
| Residential real estate | 90+ days past due | |||
| Financing Receivable, Modified [Line Items] | |||
| Number of investments | loan | 0 | ||
| Past due loans | $ 0 | $ 0 | |
| Commercial real estate | |||
| Financing Receivable, Modified [Line Items] | |||
| Past due loans | 8,300 | $ 8,039 | |
| Commercial real estate | 90+ days past due | |||
| Financing Receivable, Modified [Line Items] | |||
| Number of investments | loan | 1 | ||
| Past due loans | $ 0 | $ 63 | |