Earnings Per Share - Computation of Basic Earnings Per Share, Assuming Dilution (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net Earnings	$ 1,111	$ 1,178	$ 859	$ 968	$ 1,173	$ 706	$ 3,148	$ 2,847
Denominator:
Average Common Shares Outstanding (in shares)	2,122			2,237			2,156	2,263
Other Potentially Dilutive Common Shares (in shares)	4			5			5	5
Average Common Shares Outstanding, Assuming Dilution (in shares)	2,126			2,242			2,161	2,268
Net Earnings Per Share, Basic (in dollars per share)	$ 0.52			$ 0.43			$ 1.46	$ 1.26
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.52			$ 0.43			$ 1.46	$ 1.26