Loans, Lending Commitments and Related Allowance for Credit Losses - Nonaccrual Loans Held for Investment before Allowance (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Nonaccrual loans | $ 1,147 | $ 1,019 |
| Nonaccrual loans without an ACL | 180 | 162 |
| Corporate | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Nonaccrual loans | 203 | 108 |
| Secured lending facilities | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Nonaccrual loans | 14 | 6 |
| Commercial real estate | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Nonaccrual loans | 476 | 447 |
| Residential real estate | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Nonaccrual loans | 208 | 160 |
| Securities-based lending and Other loans | ||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||
| Nonaccrual loans | $ 246 | $ 298 |