Net Income Per Common Share (Tables)

12 Months Ended

Dec. 31, 2021

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)	Years ended December 31,
	2021		2020		2019
Numerator:
Net income—basic and diluted	$	2,946	$	1,216	$	1,997
Denominator:
Basic weighted-average common shares outstanding	161.0		161.2		163.2
Effect of share-based awards:
Stock options	1.1		0.7		1.2
Nonvested shares	0.6		0.5		0.7
Diluted weighted-average shares	162.7		162.4		165.1
Earnings per share:
Basic	$	18.29	$	7.55	$	12.24
Diluted	18.10		7.49		12.10
Number of anti-dilutive share-based awards	0.8		1.4		—