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Derivatives and Hedging Activities - Schedule of Fair Values, Volume of Activity and Gain (Loss) Information Related to Derivative Instruments (Details) - USD ($) $ in Millions | Jun. 30, 2026 | Dec. 31, 2025
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Notional Amount | $ 155,423 | $ 154,866
Derivative Assets | 543 | 472
Derivative assets, netting adjustments | (347) | (297)
Derivative Assets, net of collateral | 196 | 153
Derivative Liabilities | 1,017 | 927
Derivative liabilities, netting adjustments | (323) | (274)
Derivative Liabilities, net | 694 | 652
Amount of offset in excess of collateral posted | 122 | 165
Amount of offset in excess of securities collateral posted | 225 | 218
Amount of offset in excess of cash collateral held | (11) | (3)
Amount of offset in excess of securities collateral held |  | 78
Hedge accounting basis adjustment - discontinued hedges |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 92,636 | 90,638
Derivative Assets | 565 | 485
Derivative Liabilities | 1,007 | 923
Interest rate | Hedge accounting basis adjustment - active hedges |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 62,787 | 64,228
Derivative Assets | (22) | (13)
Derivative Liabilities | 10 | 4
Interest rate | Hedge accounting basis adjustment - discontinued hedges |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 74,644 | 74,994
Derivative Assets | 126 | 145
Derivative Liabilities | 625 | 573
Foreign exchange | Hedge accounting basis adjustment - discontinued hedges |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 6,437 | 5,767
Derivative Assets | 99 | 83
Derivative Liabilities | 95 | 80
Commodity | Hedge accounting basis adjustment - discontinued hedges |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 6,058 | 5,553
Derivative Assets | 284 | 249
Derivative Liabilities | 273 | 237
Credit | Hedge accounting basis adjustment - discontinued hedges |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 88 | 107
Derivative Assets | 0 | 0
Derivative Liabilities | 5 | 8
Other | Hedge accounting basis adjustment - discontinued hedges |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 5,409 | 4,217
Derivative Assets | 56 | 8
Derivative Liabilities | 9 | 25
Net derivatives |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 155,423 | 154,866
Derivative Assets, net of collateral | 196 | 175
Derivative Liabilities, net | 694 | 653
Other collateral |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 0 | 0
Derivative Assets, net of collateral | 0 | (22)
Derivative Liabilities, net | $ 0 | $ (1)

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