Loans and Allowance for Credit Losses - Activity in the Allowance for Credit Losses for Loans Held for Investment (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | $ 193,000,000 | |||
| Provision | $ 0 | $ 30,000,000 | 16,000,000 | $ 42,000,000 |
| Ending balance | 161,000,000 | 161,000,000 | ||
| Total | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 179,000,000 | 186,000,000 | 203,000,000 | 183,000,000 |
| Provision | 0 | 30,000,000 | 16,000,000 | 42,000,000 |
| Charge-offs | (4,000,000) | (24,000,000) | (44,000,000) | (33,000,000) |
| Ending balance | 175,000,000 | 192,000,000 | 175,000,000 | 192,000,000 |
| Commercial Loans | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 39,000,000 | 65,000,000 | 69,000,000 | 68,000,000 |
| Provision | (16,000,000) | 7,000,000 | (6,000,000) | 13,000,000 |
| Charge-offs | (4,000,000) | (1,000,000) | (44,000,000) | (10,000,000) |
| Ending balance | 19,000,000 | 71,000,000 | 19,000,000 | 71,000,000 |
| Other Loans | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 11,000,000 | 6,000,000 | 5,000,000 | 4,000,000 |
| Provision | (1,000,000) | 1,000,000 | 5,000,000 | 3,000,000 |
| Charge-offs | 0 | 0 | 0 | 0 |
| Ending balance | 10,000,000 | 7,000,000 | 10,000,000 | 7,000,000 |
| Other Loans | Fund Finance | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Ending balance | 4,000,000 | 3,000,000 | 4,000,000 | 3,000,000 |
| Other Loans | Other Loans | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Ending balance | 3,000,000 | 1,000,000 | 3,000,000 | 1,000,000 |
| Commercial Real Estate | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 118,000,000 | 105,000,000 | 119,000,000 | 102,000,000 |
| Provision | 14,000,000 | 19,000,000 | 13,000,000 | 22,000,000 |
| Charge-offs | 0 | (23,000,000) | 0 | (23,000,000) |
| Ending balance | 132,000,000 | 101,000,000 | 132,000,000 | 101,000,000 |
| Off-Balance Sheet Commitments | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 9,000,000 | 10,000,000 | 8,000,000 | 9,000,000 |
| Provision | 3,000,000 | 2,000,000 | 4,000,000 | 3,000,000 |
| Charge-offs | 0 | 0 | 0 | 0 |
| Ending balance | 12,000,000 | 12,000,000 | 12,000,000 | 12,000,000 |
| All Other | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 2,000,000 | 0 | 2,000,000 | 0 |
| Provision | 0 | 1,000,000 | 0 | 1,000,000 |
| Charge-offs | 0 | 0 | 0 | 0 |
| Ending balance | $ 2,000,000 | $ 1,000,000 | $ 2,000,000 | $ 1,000,000 |