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TAXES ON INCOME (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Apr. 01, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Effective income tax rate 21.60% 25.50% 22.90% 24.40%  
Share-based compensation, excess tax benefit, amount $ 5 $ 4 $ 9 $ 12  
Disposed of by Sale | Q2 Solutions          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Effective income tax rate 17.60%   17.60%    
Percent of ownership interest sold         40.00%