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ACQUISITIONS AND INVESTMENTS (Details) - USD ($) $ in Millions | Oct. 01, 2021 | Feb. 10, 2021 | Sep. 30, 2021 | Mar. 31, 2021 | Feb. 29, 2020
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Kount |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, percentage of voting interests acquired |  | 100.00% |  |  |
Consideration transferred |  | $ 640 |  |  |
Hiretech and i2Verify |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, percentage of voting interests acquired |  |  |  | 100.00% |
Health e(fx) and Teletrack |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, percentage of voting interests acquired |  |  | 100.00% |  |
Appriss Insights | Subsequent Event |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition, percentage of voting interests acquired | 100.00% |  |  |  |
Consideration transferred | $ 1,825 |  |  |  |
India Joint Venture |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Remaining ownership interest acquired (as a percent) |  |  |  |  | 40.60%

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