Summary of Significant Accounting Policies and Other Matters - Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Net income	$ 1,660	$ 1,346	$ 1,101
Weighted average common shares outstanding – basic (in shares)	354.5	348.4	334.8
Add: Incremental shares attributable to effect of potentially dilutive securities (in shares)	1.3	1.0	0.9
Adjusted weighted average common shares outstanding – diluted (in shares)	355.8	349.4	335.7
Net income per common share — basic (in dollars per share)	$ 4.68	$ 3.86	$ 3.29
Net income per common share — diluted (in dollars per share)	$ 4.66	$ 3.85	$ 3.28