Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Net sales:
Net sales	$ 1,663	$ 1,651	$ 5,028	$ 4,921
Cost of sales and operating expenses:
Total cost of sales and operating expenses	1,589	1,529	4,768	4,511
Gross income	74	122	260	410
Selling, general and administrative expenses	80	85	247	244
Operating income (loss)	(6)	37	13	166
Other income (expense):
Interest expense	(9)	(12)	(27)	(31)
Interest income	10	3	25	9
Loss from affiliates	(15)	(18)	(49)	(40)
Other investment income, net	2	40	152	15
Foreign currency gains, net	1	9	3	7
Miscellaneous, net	(1)	1	(1)	(1)
Total other income (expense), net	(12)	23	103	(41)
Earnings (loss) before income taxes	(18)	60	116	125
Income tax benefit (expense)	11	(26)	(8)	(52)
Net earnings (loss)	(7)	34	108	73
Less: Net loss attributable to noncontrolling interests	0	1	0	1
Net earnings (loss) attributable to Seaboard	$ (7)	$ 35	$ 108	$ 74
Earnings (loss) per common share	$ (6.00)	$ 29.93	$ 92.97	$ 62.96
Average number of shares outstanding (in shares)	1,165,081	1,170,550	1,166,073	1,170,550
Other comprehensive income (loss), net of income tax benefit of $0, $(1), $0 and $0:
Foreign currency translation adjustment	$ 2	$ (25)	$ (9)	$ (52)
Unrecognized pension cost	1	1	7	(1)
Other comprehensive income (loss), net of tax	3	(24)	(2)	(53)
Comprehensive income (loss)	(4)	10	106	20
Less: Comprehensive loss attributable to noncontrolling interests	0	1	0	1
Comprehensive income (loss) attributable to Seaboard	(4)	11	106	21
Products
Net sales:
Net sales	1,359	1,338	4,117	4,011
Cost of sales and operating expenses:
Total cost of sales and operating expenses	1,329	1,267	3,981	3,721
Services
Net sales:
Net sales	270	273	814	815
Cost of sales and operating expenses:
Total cost of sales and operating expenses	239	235	717	717
Other
Net sales:
Net sales	34	40	97	95
Cost of sales and operating expenses:
Total cost of sales and operating expenses	$ 21	$ 27	$ 70	$ 73