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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%

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