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EQUITY INVESTMENTS (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Other Joint Ventures [Member] |  |
Investments, Equity Method and Joint Ventures, Schedule of Equity Method Investments [Line Items] |  |
Percentage of equity interest in joint venture (in hudredths) | 50.00% |
Equity method investment in joint venture | $ 111 | $ 106
Nanjing Joint Venture [Member] |  |
Investments, Equity Method and Joint Ventures, Schedule of Equity Method Investments [Line Items] |  |
Percentage of equity interest in joint venture (in hudredths) | 50.00% |
Shenzhen Joint Venture [Member] |  |
Investments, Equity Method and Joint Ventures, Schedule of Equity Method Investments [Line Items] |  |
Percentage of equity interest in joint venture (in hudredths) | 50.00% |
Acetate Tow Joint Venture [Member] |  |
Investments, Equity Method and Joint Ventures, Schedule of Equity Method Investments [Line Items] |  |
Percentage of equity interest in joint venture (in hudredths) | 45.00% |

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