Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Net sales:
Total net sales	$ 1,683	$ 1,543
Cost of sales and operating expenses:
Total cost of sales and operating expenses	1,548	1,493
Gross income	135	50
Selling, general and administrative expenses	72	84
Operating income (loss)	63	(34)
Other income (expense):
Interest expense	(5)	(6)
Interest income	7	7
Loss from affiliates	(4)	(18)
Other investment income (loss), net	(225)	113
Foreign currency gains (losses), net	(11)	3
Miscellaneous, net	1
Total other income (loss), net	(237)	99
Earnings (loss) before income taxes	(174)	65
Income tax benefit (expense)	71	(8)
Net earnings (loss)	(103)	57
Less: Net loss (income) attributable to noncontrolling interests	0	0
Net earnings (loss) attributable to Seaboard	$ (103)	$ 57
Earnings (loss) per common share	$ (88.43)	$ 48.79
Average number of shares outstanding (in shares)	1,163,888	1,167,430
Other comprehensive income (loss), net of income tax expense of $0 and $0:
Foreign currency translation adjustment	$ 3	$ (2)
Unrecognized pension cost	2	3
Other comprehensive income, net of tax	5	1
Comprehensive income (loss)	(98)	58
Less: Comprehensive loss (income) attributable to noncontrolling interests	0	0
Comprehensive income (loss) attributable to Seaboard	(98)	58
Products
Net sales:
Total net sales	1,382	1,245
Cost of sales and operating expenses:
Total cost of sales and operating expenses	1,278	1,230
Services
Net sales:
Total net sales	283	269
Cost of sales and operating expenses:
Total cost of sales and operating expenses	256	240
Other
Net sales:
Total net sales	18	29
Cost of sales and operating expenses:
Total cost of sales and operating expenses	$ 14	$ 23