FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Foreign Exchange Contracts Included on Consolidated Statements of Operations and Consolidated Statements of Cash Flows (Details) - Foreign currency exchange contracts - Not Designated as Hedging Instrument - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||
Gain (loss) related to changes in fair value | $ 2 | $ 0 | $ 7 | $ (1) |
Loss related to settlements | $ (5) | $ (14) | $ (1) | |
Gain related to settlements | $ 3 |