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PROPERTY, PLANT AND EQUIPMENT - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Property, Plant and Equipment [Abstract]          
Property, plant and equipment purchased on account $ 365   $ 365   $ 319
Impairment charges on property plant and equipment $ 0 $ 0 $ 30 $ 0