INCOME (LOSS) PER COMMON SHARE (Tables)

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Schedule of reconciliations of the numerators and denominators used in the computations of basic and diluted earnings per common share

Reconciliations of the numerators and denominators used in the computations of basic and diluted income (loss) per common share were as follows, in millions: 

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Numerator (basic and diluted):
Net income (loss)	$	278	$	(36)	$	511	$	58
Less: Allocation to redeemable noncontrolling interest	1		—		—		6
Less: Allocation to unvested restricted stock awards	1		—		2		—
Net income (loss) attributable to common shareholders	$	276	$	(36)	$	509	$	52
Denominator:
Basic common shares (based upon weighted average)	231		252		235		254
Add: Stock option dilution	2		—		2		2
Diluted common shares	233		252		237		256

Schedule of the Company's Stock Option Activity

The following stock options and restricted stock units were excluded from the computation of weighted-average diluted common shares outstanding due to their anti-dilutive effect, in thousands:

	Three Months Ended June 30,		Six Months Ended June 30,
	2022	2021	2022	2021
Number of stock options	670	2,802	599	260
Number of restricted stock units	249	464	17	1