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Accumulated Other Comprehensive Income - Reclassification Out of AOCI (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Securities gains, net | $ 20 | $ 16 | $ 8 | $ 7
Interest on securities | 598 | 458 | 1,099 | 910
Interest and fees on loans and leases | 2,607 | 1,881 | 4,900 | 3,696
Income before income taxes | 1,036 | 808 | 1,243 | 1,461
Applicable income tax expense | (235) | (180) | (277) | (319)
Net Income | 801 | 628 | 966 | 1,142
Compensation and benefits | (1,129) | (698) | (2,539) | (1,447)
Other noninterest expense | 332 | 215 | 749 | 438
Reclassification out of AOCI |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Net Income | (49) | (60) | (88) | (127)
Reclassification out of AOCI | Available-for-sale debt securities |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Securities gains, net | (17) | 0 | (18) | 0
Income before income taxes | (17) | 0 | (18) | 0
Applicable income tax expense | 4 | 0 | 4 | 0
Net Income | (13) | 0 | (14) | 0
Reclassification out of AOCI | Available-for-sale debt securities transferred to held-to-maturity securities |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Interest on securities | (30) | (28) | (57) | (60)
Income before income taxes | (30) | (28) | (57) | (60)
Applicable income tax expense | 6 | 6 | 11 | 13
Net Income | (24) | (22) | (46) | (47)
Reclassification out of AOCI | Cash flow hedge derivatives |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Interest and fees on loans and leases | (21) | (50) | (42) | (105)
Income before income taxes | (21) | (50) | (42) | (105)
Applicable income tax expense | 5 | 12 | 10 | 25
Net Income | (16) | (38) | (32) | (80)
Reclassification out of AOCI | Net periodic benefit costs |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Other noninterest expense | 1 | 0 | 1 | 0
Reclassification out of AOCI | Curtailment gain |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Income before income taxes | 5 | 0 | 5 | 0
Applicable income tax expense | (1) | 0 | (1) | 0
Net Income | 4 | 0 | 4 | 0
Other noninterest expense | $ 6 | $ 0 | $ 6 | $ 0

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