Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Net sales:
Total net sales	$ 2,191	$ 2,499
Cost of sales and operating expenses:
Total cost of sales and operating expenses	2,104	2,465
Gross income	87	34
Selling, general and administrative expenses	107	97
Operating loss	(20)	(63)
Other income (expense):
Interest expense	(12)	(12)
Interest income (includes $1 and $2 from affiliates)	19	13
Income from affiliates	19	26
Other investment income, net	18	27
Foreign currency losses, net	(1)	(4)
Miscellaneous, net	0	0
Total other income, net	43	50
Earnings (loss) before income taxes	23	(13)
Income tax expense	(1)	(3)
Net earnings (loss)	22	(16)
Net earnings (loss) attributable to Seaboard	$ 22	$ (16)
Earnings (loss) per common share (in dollars per share)	$ 22.66	$ (13.78)
Average number of shares outstanding (in shares)	971,055	1,160,779
Other comprehensive income, net of income tax expense of $0, $0:
Foreign currency translation adjustment	$ (2)	$ 12
Unrecognized pension cost	2	2
Other comprehensive income, net of tax	0	14
Comprehensive income (loss)	22	(2)
Comprehensive income (loss) attributable to Seaboard	22	(2)
Products
Net sales:
Total net sales	1,792	1,984
Cost of sales and operating expenses:
Total cost of sales and operating expenses	1,769	2,094
Services
Net sales:
Total net sales	350	463
Cost of sales and operating expenses:
Total cost of sales and operating expenses	297	331
Other
Net sales:
Total net sales	49	52
Cost of sales and operating expenses:
Total cost of sales and operating expenses	$ 38	$ 40