Net Income Per Share - Schedule of Computation of Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator for Basic and Diluted Earnings Per Share -
Net income -basic	$ 2,030	$ 2,854	$ 5,606	$ 5,482
Net income - diluted	$ 2,030	$ 2,854	$ 5,606	$ 5,482
Denominator for Basic Earnings Per Share -
Weighted average shares (in shares)	579	583	581	583
Denominator for Diluted Earnings Per Share -
Adjusted diluted weighted average shares (in shares)	583	587	584	587
Net Income Per Share
Basic (in USD per share)	$ 3.51	$ 4.90	$ 9.65	$ 9.40
Diluted ( in USD per share)	$ 3.48	$ 4.86	$ 9.60	$ 9.34
Stock Options/SARs/ESPP
Potential Dilutive Common Shares -
Common shares attributable to dilutive effect of share-based payment arrangements (in shares)	1	1	1	2
Restricted Stock/Units and Performance Units
Potential Dilutive Common Shares -
Common shares attributable to dilutive effect of share-based payment arrangements (in shares)	3	3	2	2