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EQUITY-BASED COMPENSATION - Information Related to Stock Options (Details) - USD ($) shares in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Proceeds from stock options exercised | $ 63 | $ 71 | $ 66
Income tax benefit related to stock options exercised |  |  |
Tax benefit classified in operating activities in the Consolidated Statements of Cash Flows | 13 | 10 | 4
Intrinsic value of stock options exercised | 69 | 50 | 29
Total fair value of stock options vested | $ 14 | $ 9 | $ 9
Stock options exercised | 0.9 | 1.1 | 1.2
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Pre-tax expense for equity awards | $ 14 | $ 9 | $ 9
After-tax expense for equity awards | 11 | 7 | 7
Proceeds from stock options exercised | $ 63 | $ 70 | $ 67

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- Definition Tax benefit for stock options exercised classified in operating activities excluding RSU's. + References No definition available. + Details
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