Fair Value of Financial Instruments (Details) - USD ($) |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Financial assets | ||
| Loans held-for-sale | $ 2,271,000,000 | $ 2,214,000,000 |
| Financial liabilities | ||
| Long-term debt | 72,591,000,000 | 50,005,000,000 |
| Demand deposits | 1,100,000,000,000 | 892,900,000,000 |
| Stated maturities | 0 | 0 |
| Carrying Value | ||
| Financial assets | ||
| Loans | 1,149,093,000,000 | 1,060,629,000,000 |
| Loans held-for-sale | 5,165,000,000 | 9,545,000,000 |
| Financial liabilities | ||
| Deposits | 2,018,729,000,000 | 1,965,467,000,000 |
| Long-term debt | 317,816,000,000 | 283,279,000,000 |
| Commercial unfunded lending commitments | 1,244,000,000 | 1,240,000,000 |
| Estimate of Fair Value Measurement | ||
| Financial assets | ||
| Loans | 1,136,439,000,000 | 1,043,106,000,000 |
| Loans held-for-sale | 5,165,000,000 | 9,545,000,000 |
| Financial liabilities | ||
| Deposits | 2,020,072,000,000 | 1,967,061,000,000 |
| Long-term debt | 324,406,000,000 | 287,750,000,000 |
| Commercial unfunded lending commitments | 6,740,000,000 | 3,694,000,000 |
| Estimate of Fair Value Measurement | Level 2 | ||
| Financial assets | ||
| Loans | 51,136,000,000 | 50,971,000,000 |
| Loans held-for-sale | 4,720,000,000 | 6,707,000,000 |
| Financial liabilities | ||
| Deposits | 2,020,072,000,000 | 1,967,061,000,000 |
| Long-term debt | 323,681,000,000 | 287,098,000,000 |
| Commercial unfunded lending commitments | 67,000,000 | 55,000,000 |
| Estimate of Fair Value Measurement | Level 3 | ||
| Financial assets | ||
| Loans | 1,085,303,000,000 | 992,135,000,000 |
| Loans held-for-sale | 445,000,000 | 2,838,000,000 |
| Financial liabilities | ||
| Deposits | 0 | 0 |
| Long-term debt | 725,000,000 | 652,000,000 |
| Commercial unfunded lending commitments | $ 6,673,000,000 | $ 3,639,000,000 |