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INCOME TAXES (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
Income Tax Contingency [Line Items]          
Effective tax rate, percent 20.50% 4.10% 15.80% 30.40%  
Federal statutory tax rate, percent     21.00% 21.00%  
Unrecognized tax benefits $ 97   $ 97   $ 84
Unrecognized tax benefits, income tax penalties and interest accrued $ 31   $ 31   $ 31
Tax and Customs Administration, Netherlands          
Income Tax Contingency [Line Items]          
Federal statutory tax rate, percent     25.00%    
Effective income tax rate at innovation box tax rate, percent     9.00% 7.00%