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, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | $ 174,000,000 | |||
| Provision | $ 30,000,000 | $ 10,000,000 | 42,000,000 | $ 37,000,000 |
| Ending balance | 179,000,000 | 179,000,000 | ||
| Held-to-Maturity Securities | ||||
| Beginning balance | 1,000,000 | 0 | 1,000,000 | |
| Provision | 0 | 0 | 0 | |
| Charge-offs | 0 | 0 | ||
| Ending balance | 0 | 1,000,000 | 0 | 1,000,000 |
| Leveraged Loans | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 65,000,000 | 71,000,000 | 68,000,000 | 72,000,000 |
| Provision | 7,000,000 | (4,000,000) | 13,000,000 | 1,000,000 |
| Charge-offs | (1,000,000) | (11,000,000) | (10,000,000) | (17,000,000) |
| Ending balance | 71,000,000 | 56,000,000 | 71,000,000 | 56,000,000 |
| Other Loans | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 6,000,000 | 4,000,000 | 4,000,000 | 3,000,000 |
| Provision | 1,000,000 | 0 | 3,000,000 | 1,000,000 |
| Charge-offs | 0 | 0 | 0 | 0 |
| Ending balance | 7,000,000 | 4,000,000 | 7,000,000 | 4,000,000 |
| Other Loans | Fund Finance | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Ending balance | 5,000,000 | 3,000,000 | 5,000,000 | 3,000,000 |
| Other Loans | Other Loans | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Ending balance | 2,000,000 | 1,000,000 | 2,000,000 | 1,000,000 |
| Commercial Real Estate | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 105,000,000 | 60,000,000 | 102,000,000 | 60,000,000 |
| Provision | 19,000,000 | 16,000,000 | 22,000,000 | 41,000,000 |
| Charge-offs | (23,000,000) | 0 | (23,000,000) | (25,000,000) |
| Ending balance | 101,000,000 | 76,000,000 | 101,000,000 | 76,000,000 |
| Off-Balance Sheet Commitments | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 10,000,000 | 10,000,000 | 9,000,000 | 14,000,000 |
| Provision | 2,000,000 | (2,000,000) | 3,000,000 | (6,000,000) |
| Charge-offs | 0 | 0 | 0 | |
| Ending balance | 12,000,000 | 8,000,000 | 12,000,000 | 8,000,000 |
| All Other | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 0 | 0 | ||
| Provision | 1,000,000 | 1,000,000 | ||
| Charge-offs | 0 | |||
| Ending balance | 1,000,000 | 1,000,000 | ||
| Total | ||||
| Financing Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | 186,000,000 | 146,000,000 | 183,000,000 | 150,000,000 |
| Provision | 30,000,000 | 10,000,000 | 42,000,000 | 37,000,000 |
| Charge-offs | (24,000,000) | (11,000,000) | (33,000,000) | (42,000,000) |
| Ending balance | $ 192,000,000 | $ 145,000,000 | $ 192,000,000 | $ 145,000,000 |