EQUITY-BASED COMPENSATION - Information Related to Stock Options (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
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

Income tax benefit related to stock options exercised.

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Share-Based Compensation Arrangement by Share Based Payment Award, Options, Vesting, Fair Value

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Tax benefit for stock options exercised classified in operating activities excluding RSU's.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount, after tax, of expense for award under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of share options (or share units) exercised during the current period.

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