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STOCK-BASED COMPENSATION - Pre-tax Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Stock-based compensation
Pre-tax compensation expense	$ 27	$ 30
Restricted stock units
Stock-based compensation
Pre-tax compensation expense	19	19
Performance restricted stock units
Stock-based compensation
Pre-tax compensation expense	1	2
Stock options
Stock-based compensation
Pre-tax compensation expense	5	4
Long-term stock awards
Stock-based compensation
Pre-tax compensation expense	2	3
Phantom stock awards
Stock-based compensation
Pre-tax compensation expense	$ 0	$ 2

X

- Definition

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

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