Earnings Per Share - Schedule of Computation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share
Net income	$ 915.7	$ 810.5	$ 1,615.5	$ 1,572.6
Basic weighted-average common shares outstanding (in shares)	257.7	255.9	257.6	255.5
Effect of potentially dilutive securities:
Employee stock purchase program (in shares)	0.0	0.0	0.0	0.0
Diluted weighted-average common shares outstanding (in shares)	260.4	258.7	260.3	258.3
Basic net income per common share (in dollars per share)	$ 3.55	$ 3.17	$ 6.27	$ 6.15
Diluted net income per common share (in dollars per share)	$ 3.52	$ 3.13	$ 6.21	$ 6.09
Stock options
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)	1.3	1.4	1.2	1.4
Restricted stock units (including PSUs)
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)	1.4	1.4	1.5	1.4