Earnings per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Net earnings	$ 2,375	$ 2,293	$ 5,830	$ 8,225
Less: Distributed and undistributed earnings attributable to share-based awards	(6)	(6)	(17)	(20)
Less: Distributed and undistributed earnings attributable to share-based awards	(6)	(6)	(17)	(20)
Earnings for basic EPS	2,369	2,287	5,813	8,205
Earnings for diluted EPS	$ 2,369	$ 2,287	$ 5,813	$ 8,205
Weighted-average shares for basic EPS (in shares)	1,680,000	1,703,000	1,685,000	1,726,000
Weighted-average shares for diluted EPS (in shares)	1,680,000	1,703,000	1,685,000	1,726,000