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Derivative Financial Instruments - Notional Amounts and Fair Values for All Derivative Instruments Included in the Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions | Jun. 30, 2026 | Dec. 31, 2025
--- | --- | ---
Derivatives, Fair Value |  |
Derivative Assets | $ 2,478 | $ 1,868
Derivative Liabilities | 2,666 | 2,034
Derivative assets, fair value, gross assets | 2,471 | 1,863
Derivative liabilities, fair value, gross liabilities | 2,666 | 2,034
Amount of variation margin payment applied to derivative asset contracts | 412 | 270
Amount of variation margin payment applied to derivative liability contracts | 649 | 415
Designated as Hedging Instrument |  |
Derivatives, Fair Value |  |
Derivative Assets | 2 | 8
Derivative Liabilities | 17 | 0
Designated as Hedging Instrument | Fair Value Hedging |  |
Derivatives, Fair Value |  |
Derivative Assets | 1 | 1
Derivative Liabilities | 17 | 0
Designated as Hedging Instrument | Fair Value Hedging | Interest rate swap | Long-term debt |  |
Derivatives, Fair Value |  |
Notional Amount | 7,314 | 4,205
Derivative Assets | 1 | 1
Derivative Liabilities | 17 | 0
Designated as Hedging Instrument | Cash Flow Hedging |  |
Derivatives, Fair Value |  |
Derivative Assets | 1 | 7
Derivative Liabilities | 0 | 0
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap | Commercial and industrial |  |
Derivatives, Fair Value |  |
Notional Amount | 7,850 | 6,850
Derivative Assets | 0 | 5
Derivative Liabilities | 0 | 0
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap | Commercial mortgage and commercial construction |  |
Derivatives, Fair Value |  |
Notional Amount | 4,000 |
Derivative Assets | 1 |
Derivative Liabilities | 0 |
Designated as Hedging Instrument | Cash Flow Hedging | Forward starting interest rate swap | Commercial mortgage and commercial construction |  |
Derivatives, Fair Value |  |
Notional Amount |  | 4,000
Derivative Assets |  | 2
Derivative Liabilities |  | 0
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap forward starting | Commercial and industrial |  |
Derivatives, Fair Value |  |
Notional Amount | 2,000 |
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap forward starting | Commercial Loans |  |
Derivatives, Fair Value |  |
Derivative Assets | 0 |
Derivative Liabilities | 0 |
Not Designated as Hedging Instrument |  |
Derivatives, Fair Value |  |
Derivative Assets | 2,476 | 1,860
Derivative Liabilities | 2,649 | 2,034
Not Designated as Hedging Instrument | Risk Management and Other Business Purposes |  |
Derivatives, Fair Value |  |
Derivative Assets | 28 | 7
Derivative Liabilities | 74 | 130
Not Designated as Hedging Instrument | Risk Management and Other Business Purposes | Interest rate contracts related to residential MSR portfolio |  |
Derivatives, Fair Value |  |
Notional Amount | 4,880 | 4,275
Derivative Assets | 7 | 6
Derivative Liabilities | 1 | 1
Not Designated as Hedging Instrument | Risk Management and Other Business Purposes | Forward contracts related to residential mortgage loans measured at fair value | Loans Measured At Fair Value |  |
Derivatives, Fair Value |  |
Notional Amount | 1,021 | 1,072
Derivative Assets | 2 | 1
Derivative Liabilities | 3 | 3
Not Designated as Hedging Instrument | Risk Management and Other Business Purposes | Swap |  |
Derivatives, Fair Value |  |
Notional Amount | 2,335 | 2,678
Derivative Assets | 0 | 0
Derivative Liabilities | 70 | 124
Not Designated as Hedging Instrument | Risk Management and Other Business Purposes | Foreign exchange contracts |  |
Derivatives, Fair Value |  |
Notional Amount | 493 | 150
Derivative Assets | 19 | 0
Derivative Liabilities | 0 | 2
Not Designated as Hedging Instrument | Risk Management and Other Business Purposes | Other |  |
Derivatives, Fair Value |  |
Notional Amount | 82 | 82
Derivative Assets | 0 | 0
Derivative Liabilities | 0 | 0
Not Designated as Hedging Instrument | Customer Accommodation |  |
Derivatives, Fair Value |  |
Derivative Assets | 2,448 | 1,853
Derivative Liabilities | 2,575 | 1,904
Not Designated as Hedging Instrument | Customer Accommodation | Foreign exchange contracts |  |
Derivatives, Fair Value |  |
Notional Amount | 22,698 | 26,166
Derivative Assets | 484 | 659
Derivative Liabilities | 437 | 626
Not Designated as Hedging Instrument | Customer Accommodation | Interest rate contracts |  |
Derivatives, Fair Value |  |
Notional Amount | 103,146 | 82,901
Derivative Assets | 601 | 443
Derivative Liabilities | 781 | 540
Amount of variation margin payment applied to derivative asset contracts | 263 | 120
Amount of variation margin payment applied to derivative liability contracts | 39 | 29
Not Designated as Hedging Instrument | Customer Accommodation | Interest rate lock commitments |  |
Derivatives, Fair Value |  |
Notional Amount | 418 | 317
Derivative Assets | 7 | 5
Derivative Liabilities | 0 | 0
Not Designated as Hedging Instrument | Customer Accommodation | Commodity contracts |  |
Derivatives, Fair Value |  |
Notional Amount | 31,815 | 16,945
Derivative Assets | 1,356 | 746
Derivative Liabilities | 1,357 | 738
Not Designated as Hedging Instrument | Customer Accommodation | TBA securities |  |
Derivatives, Fair Value |  |
Notional Amount | 30 | 31
Derivative Assets | 0 | 0
Derivative Liabilities | $ 0 | $ 0

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