Earnings Per Share

6 Months Ended

Jun. 30, 2023

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


	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
	(in millions, except per share amounts)
Net income	$	915.7	$	810.5	$	1,615.5	$	1,572.6

Basic weighted-average common shares outstanding	257.7		255.9		257.6		255.5
Effect of potentially dilutive securities:
Stock options	1.3		1.4		1.2		1.4
Restricted stock units (including PSUs)	1.4		1.4		1.5		1.4
Employee stock purchase program	0.0		0.0		0.0		0.0
Diluted weighted-average common shares outstanding	260.4		258.7		260.3		258.3

Basic net income per common share	$	3.55	$	3.17	$	6.27	$	6.15
Diluted net income per common share	$	3.52	$	3.13	$	6.21	$	6.09

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 June 30,		Six Months Ended June 30,
	2023	2022	2023	2022
	(in millions)
Stock options	0.0	0.0	0.0	0.0
Unvested restricted stock units (including PSUs)	—	0.0	0.3	0.3