CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Statement of Comprehensive Income [Abstract] | |||
| Reclassification of unrealized losses (gains) on cash flow hedges from accumulated other comprehensive income (loss) to net income, tax expense (benefit) | $ (1) | $ (1) | $ (1) |
| Net unrealized gains (losses) on securities still held, tax expense (benefit) | 10 | (1) | 6 |
| Reclassification from accumulated other comprehensive income (loss) to net income, tax expense (benefit) | (2) | (2) | (4) |
| Net gain (loss) and prior service benefit (cost), tax expense (benefit) | 16 | 19 | 7 |
| Reclassification from accumulated other comprehensive income (loss) to net income | 0 | 0 | 0 |
| Other comprehensive income (loss) related to equity method investee, tax expense (benefit) | $ 0 | $ 0 | $ 0 |
| X | ||||||||||
- Definition Other comprehensive income (loss) related to equity method investee, tax No definition available.
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) for reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, before reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of tax (expense) benefit for reclassification adjustment from accumulated other comprehensive (income) loss of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|