Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Net sales:
Total net sales	$ 2,388	$ 2,895	$ 7,280	$ 8,577
Cost of sales and operating expenses:
Total cost of sales and operating expenses	2,223	2,648	6,985	7,813
Gross income	165	247	295	764
Selling, general and administrative expenses	98	92	295	271
Operating income (loss)	67	155		493
Other income (expense):
Interest expense	(9)	(13)	(41)	(23)
Interest income	18	9	45	21
Income from affiliates	23	48	74	94
Other investment income (loss), net	(7)	(64)	43	(291)
Foreign currency gains, net		9	3	21
Miscellaneous, net	1	1	4	11
Total other income (expense), net	26	(10)	128	(167)
Earnings before income taxes	93	145	128	326
Income tax benefit	33	1	34	32
Net earnings	126	146	162	358
Less: Net earnings attributable to noncontrolling interests	0	0	0	(1)
Net earnings attributable to Seaboard	$ 126	$ 146	$ 162	$ 357
Earnings per common share (in dollars per share)	$ 108.55	$ 125.78	$ 139.56	$ 307.55
Average number of shares outstanding (in shares)	1,160,779	1,160,779	1,160,779	1,160,779
Other comprehensive income (loss), net of income tax expense of $0, $1, $0 and $1:
Foreign currency translation adjustment	$ (3)	$ (15)	$ 10	$ (18)
Unrecognized pension cost		3	4	4
Other comprehensive income (loss), net of tax	(3)	(12)	14	(14)
Comprehensive income	123	134	176	344
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	(1)
Comprehensive income attributable to Seaboard	123	134	176	343
Products
Net sales:
Total net sales	1,966	2,299	5,907	6,901
Cost of sales and operating expenses:
Total cost of sales and operating expenses	1,905	2,254	5,981	6,677
Services
Net sales:
Total net sales	349	541	1,185	1,556
Cost of sales and operating expenses:
Total cost of sales and operating expenses	276	351	882	1,032
Other
Net sales:
Total net sales	73	55	188	120
Cost of sales and operating expenses:
Total cost of sales and operating expenses	$ 42	$ 43	$ 122	$ 104