Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net sales:
Total net sales	$ 11,243	$ 9,229	$ 7,126
Cost of sales and operating expenses:
Total cost of sales and operating expenses	10,213	8,411	6,552
Gross income	1,030	818	574
Selling, general and administrative expenses	373	360	329
Operating income	657	458	245
Other income (expense):
Interest expense	(40)	(13)	(19)
Interest income	32	22	22
Income (loss) from affiliates	152	7	(18)
Other investment income (loss), net	(239)	133	84
Foreign currency gains (losses), net	5	16	(31)
Miscellaneous, net	12	13	3
Total other income, net	(78)	178	41
Earnings before income taxes	579	636	286
Income tax benefit (expense)	3	(65)	(3)
Net earnings	582	571	283
Less: Net earnings attributable to noncontrolling interests	(2)	(1)	0
Net earnings attributable to Seaboard	$ 580	$ 570	$ 283
Earnings per common share (in dollars per share)	$ 499.66	$ 490.36	$ 244.21
Average number of shares outstanding (in shares)	1,160,779	1,160,779	1,161,526
Other comprehensive income (loss), net of income tax benefit (expense) of $(8), $(8) and $3:
Foreign currency translation adjustment	$ (33)	$ 8	$ (7)
Unrecognized pension cost	43	31	(23)
Other comprehensive income (loss), net of tax	10	39	(30)
Comprehensive income	592	610	253
Less: Comprehensive income attributable to noncontrolling interests	(2)	(1)	(1)
Comprehensive income attributable to Seaboard	590	609	252
Products
Net sales:
Total net sales	8,979	7,714	5,993
Cost of sales and operating expenses:
Total cost of sales and operating expenses	8,707	7,223	5,580
Services
Net sales:
Total net sales	2,100	1,445	1,058
Cost of sales and operating expenses:
Total cost of sales and operating expenses	1,369	1,124	915
Other
Net sales:
Total net sales	164	70	75
Cost of sales and operating expenses:
Total cost of sales and operating expenses	$ 137	$ 64	$ 57