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STOCK BASED COMPENSATION - Summary Of Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Number of Shares
Beginning balance (in shares)	379,985
Exercised (in shares)	(73,118)
Ending balance (in shares)	306,867	379,985
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 15.10
Exercised (in dollars per share)	10.20
Ending balance (in dollars per share)	$ 16.20	$ 15.10
Weighted Average Remaining Contractual Term (in years)	2 years 2 months 12 days	3 years 2 months 12 days
Aggregate intrinsic value, beginning balance	$ 25
Aggregate intrinsic value, ending balance	$ 24	$ 25

X

- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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