Earnings Per Share - Computation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net Earnings	$ 3,715	$ 4,166	$ 3,781
Denominator:
Average Common Shares Outstanding (in shares)	2,008	2,136	2,250
Other Potentially Dilutive Common Shares (in shares)	5	5	5
Average Common Shares Outstanding, Assuming Dilution (in shares)	2,013	2,141	2,255
Net Earnings Per Share, Basic (in dollars per share)	$ 1.85	$ 1.95	$ 1.68
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 1.85	$ 1.95	$ 1.68