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FINANCIAL INSTRUMENTS - AOCI (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Derivatives, Fair Value |  |
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax | $ (32) | $ (230)
Gain (loss) expected to be reclassified to income in one year or less | 0 |
Foreign currency | Net Investment Hedging |  |
Derivatives, Fair Value |  |
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax | (7) | (1)
Gain (loss) expected to be reclassified to income in one year or less | 0 |
Cross-currency swaps | Net Investment Hedging |  |
Derivatives, Fair Value |  |
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax | (71) | (161)
Gain (loss) expected to be reclassified to income in one year or less | 0 |
Foreign currency-denominated debt | Net Investment Hedging |  |
Derivatives, Fair Value |  |
Accumulated other comprehensive income (loss), cumulative changes in net gain (loss) from hedges, before tax | 46 | $ (68)
Gain (loss) expected to be reclassified to income in one year or less | $ 0 |

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