Earnings Per Share

9 Months Ended

Sep. 30, 2022

The following table sets forth the computation of basic and diluted net income per common share for the periods ended:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(in millions, except per share amounts)
Net income	$	930.5	$	851.9	$	2,503.1	$	1,572.0

Basic weighted-average common shares outstanding	256.5		257.9		255.8		258.7
Effect of potentially dilutive securities:
Stock options	1.4		1.0		1.4		1.1
Restricted stock units (including PSUs)	1.6		0.8		1.4		1.1
Employee stock purchase program	0.0		0.0		0.1		0.0
Diluted weighted-average common shares outstanding	259.5		259.7		258.7		260.9

Basic net income per common share	$	3.63	$	3.30	$	9.78	$	6.08
Diluted net income per common share	$	3.59	$	3.28	$	9.68	$	6.03

We did not include the securities in the following table in the computation of the diluted net income per common share because the effect would have been anti-dilutive during each period:


	Three Months Ended September 30,		Nine Months Ended September 30,
	2022	2021	2022	2021
	(in millions)
Stock options	—	1.1	0.0	0.7
Unvested restricted stock units (including PSUs)	0.0	0.2	0.2	0.4