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Derivatives and Hedging Activities - Fair Value of Derivative Assets by Type (Details) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Credit Derivatives [Line Items] |  |
Derivative assets before collateral | $ 1,438 | $ 1,735
Plus(Less): Related collateral | 86 | 63
Total derivative assets | 1,524 | 1,798
Interest rate |  |
Credit Derivatives [Line Items] |  |
Derivative assets before collateral | 858 | 1,448
Foreign exchange |  |
Credit Derivatives [Line Items] |  |
Derivative assets before collateral | 55 | 52
Commodity |  |
Credit Derivatives [Line Items] |  |
Derivative assets before collateral | 492 | 178
Credit |  |
Credit Derivatives [Line Items] |  |
Derivative assets before collateral | 0 | (1)
Other |  |
Credit Derivatives [Line Items] |  |
Derivative assets before collateral | $ 33 | $ 58

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