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Amount and Location in the Income Statement for Derivatives Designed as Cash Flow Hedges (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Derivative Instruments in Cash Flow Hedging Relationships |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) Recognized in AOCI on Derivatives | $ (82) | $ 20 | $ 264 | $ 137
Derivative Instruments in Cash Flow Hedging Relationships | Interest rate contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) Recognized in AOCI on Derivatives | (2) | (2) | (3) | 11
Derivative Instruments in Cash Flow Hedging Relationships | Foreign exchange contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) Recognized in AOCI on Derivatives | (80) | 22 | 267 | 126
Non-derivative Instruments in Net Investment Hedging Relationships |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) Recognized in AOCI on Derivatives | (103) | (67) | 47 | 6
Non-derivative Instruments in Net Investment Hedging Relationships | Foreign exchange contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) Recognized in AOCI on Derivatives | $ (103) | $ (67) | $ 47 | $ 6

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