Investments In And Advances To Affiliates (Combined Balance Sheets And Statements Of Earnings Of The Company's Unconsolidated Affiliates) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Combined balance sheets and statements of earnings of the Company's unconsolidated affiliates:
Current assets	$ 29,767				$ 35,410				$ 29,767	$ 35,410
Current liabilities	(18,662)				(24,191)				(18,662)	(24,191)
Non-current liabilities	(11,504)				(10,967)				(11,504)	(10,967)
Noncontrolling interests	(13)				(33)				(13)	(33)
Revenues	22,978	$ 21,695	$ 25,190	$ 24,072	25,939	$ 24,683	$ 27,284	$ 23,650	93,935	101,556	$ 85,249
Gross Profit	1,740	$ 1,810	$ 1,883	$ 2,080	1,762	$ 1,811	$ 2,100	$ 1,897	7,513	7,570	5,987
Net earnings including noncontrolling interests									3,466	4,365	2,735
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Combined balance sheets and statements of earnings of the Company's unconsolidated affiliates:
Current assets	41,032				41,407				41,032	41,407
Non-current assets	29,773				30,589				29,773	30,589
Current liabilities	(33,812)				(36,091)				(33,812)	(36,091)
Non-current liabilities	(8,973)				(9,300)				(8,973)	(9,300)
Noncontrolling interests	(2,489)				(2,641)				(2,489)	(2,641)
Net assets	$ 25,531				$ 23,964				25,531	23,964
Revenues									85,754	109,448	87,528
Gross Profit									4,261	8,946	7,719
Net earnings including noncontrolling interests									$ 2,452	$ 3,140	$ 2,315