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DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Amount and Location in the Income Statement for Derivatives Designed as Cash Flow Hedges (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Cash Flow Hedging |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | $ (253) | $ 256
Cash Flow Hedging | Interest rate contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | 0 | 6
Cash Flow Hedging | Foreign currency exchange contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | (253) | 250
Net Investment Hedging |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | (265) | 75
Net Investment Hedging | Foreign currency exchange contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Amount of Gain (Loss) Recognized in AOCI on Derivative (Effective Portion) | $ (265) | $ 75

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