Earnings per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net earnings	$ 2,129	$ 1,787
Less: Distributed and undistributed earnings attributable to share-based awards	(5)	(3)
Less: Distributed and undistributed earnings attributable to share-based awards	(5)	(3)
Earnings for basic EPS	2,124	1,784
Earnings for diluted EPS	$ 2,124	$ 1,784
Weighted-average shares for basic EPS (in shares)	1,758,000	1,786,000
Weighted-average shares for diluted EPS (in shares)	1,758,000	1,786,000