Earnings per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net earnings	$ 1,787	$ 1,959
Less: Distributed and undistributed earnings attributable to share-based awards	(3)	(4)
Earnings for basic EPS	1,784	1,955
Earnings for diluted EPS	$ 1,784	$ 1,955
Weighted-average shares for basic EPS (in shares)	1,786,000	1,818,000
Weighted-average shares for diluted EPS (in shares)	1,786,000	1,818,000