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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator for Basic and Diluted Earnings Per Share -
Net Income	$ 2,238	$ 907	$ 2,628	$ 1,584
Denominator for Basic Earnings Per Share -
Weighted average shares (in shares)	583	580	582	580
Denominator for Diluted Earnings Per Share -
Adjusted diluted weighted average shares (in shares)	588	584	587	583
Net Income Per Share
Basic (in USD per share)	$ 3.84	$ 1.56	$ 4.52	$ 2.73
Diluted ( in USD per share)	$ 3.81	$ 1.55	$ 4.48	$ 2.72
Stock Options/SARs/ESPP
Potential Dilutive Common Shares -
Common shares attributable to dilutive effect of share-based payment arrangements (in shares)	2	1	2	1
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	3	2