Net Income Per Common Share (Tables)

3 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Calculations For Basic And Diluted Earnings Per Share

The table shows calculations for basic and diluted earnings per share:

(In millions, except per share data)	Three months ended March 31,
	2022		2021
Numerator:
Net income (loss)—basic and diluted	$	(273)	$	620
Denominator:
Basic weighted-average common shares outstanding	160.4		161.0
Effect of share-based awards:
Stock options	—		0.9
Nonvested shares	—		0.6
Diluted weighted-average shares	160.4		162.5
Earnings (loss) per share:
Basic	$	(1.70)	$	3.85
Diluted	$	(1.70)	$	3.82
Number of anti-dilutive share-based awards	2.3		1.0