Earnings per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net earnings	$ 2,117	$ 891	$ 3,904	$ 2,850
Less: Distributed and undistributed earnings attributable to share-based awards	(4)	(2)	(7)	(6)
Less: Distributed and undistributed earnings attributable to share-based awards	(4)	(2)	(7)	(6)
Earnings for basic EPS	2,113	889	3,897	2,844
Earnings for diluted EPS	$ 2,113	$ 889	$ 3,897	$ 2,844
Weighted-average shares for basic EPS (in shares)	1,782,000	1,809,000	1,784,000	1,813,000
Weighted-average shares for diluted EPS (in shares)	1,782,000	1,809,000	1,784,000	1,813,000