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RESTRUCTURING RESERVES RESTRUCTURING (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2019
Selling, General and Administrative Expenses [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring Costs $ 47 $ 116  
Employee Related Liabilities, Current [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve $ 47   $ 10