FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Assets and Liabilities Measured on a Non-Recurring Basis (Details) - Fair Value, Nonrecurring - USD ($) $ in Millions |
Sep. 30, 2019 |
Dec. 31, 2018 |
---|---|---|
Other non-current assets: | ||
Non-current assets held for sale | $ 39 | $ 0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | ||
Other non-current assets: | ||
Non-current assets held for sale | 0 | 0 |
Significant Other Observable Inputs (Level 2) | ||
Other non-current assets: | ||
Non-current assets held for sale | 0 | 0 |
Significant Unobservable Inputs (Level 3) | ||
Other non-current assets: | ||
Non-current assets held for sale | $ 39 | $ 0 |