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Segment Information-Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019	Dec. 31, 2019
Segment Information
Sales to External Customers	$ 1,808	$ 1,822	$ 3,491	$ 3,365
Operating Income (Loss)	11	53	74	19
Income (loss) from affiliates	(17)	(16)	(21)	(34)
Total Assets	5,873		5,873		$ 6,285
Investment in and Advances to Affiliates	706		706		735
Pork
Segment Information
Sales to External Customers	459	492	914	895
Operating Income (Loss)	11	25	43	(9)
Income (loss) from affiliates	(4)	(6)	(3)	(14)
Investment in and Advances to Affiliates	181		181		183
CT&M
Segment Information
Sales to External Customers	1,123	1,002	2,037	1,831
Operating Income (Loss)	24	29	54	36
Income (loss) from affiliates		(5)	1	(5)
Investment in and Advances to Affiliates	231		231		237
Marine
Segment Information
Sales to External Customers	192	259	461	513
Operating Income (Loss)	(11)	4	(17)	4
Income (loss) from affiliates	1		2	1
Investment in and Advances to Affiliates	32		32		32
Sugar and Alcohol
Segment Information
Sales to External Customers	18	30	40	55
Operating Income (Loss)	(2)	(4)	(3)	(8)
Income (loss) from affiliates		1		1
Investment in and Advances to Affiliates	6		6		5
Power
Segment Information
Sales to External Customers	13	33	30	62
Operating Income (Loss)	(1)	8	1	12
Income (loss) from affiliates		2		2
Investment in and Advances to Affiliates	3		3		3
Turkey
Segment Information
Income (loss) from affiliates	(14)	(8)	(21)	(19)
Investment in and Advances to Affiliates	253		253		275
All Other
Segment Information
Sales to External Customers	3	6	9	9
Operating Income (Loss)			1	1
Segment Totals
Segment Information
Sales to External Customers	1,808	1,822	3,491	3,365
Operating Income (Loss)	21	62	79	36
Income (loss) from affiliates	(17)	(16)	(21)	(34)
Total Assets	4,516		4,516		4,684
Segment Totals \| Pork
Segment Information
Total Assets	1,759		1,759		1,802
Segment Totals \| CT&M
Segment Information
Total Assets	1,570		1,570		1,621
Segment Totals \| Marine
Segment Information
Total Assets	504		504		554
Segment Totals \| Sugar and Alcohol
Segment Information
Total Assets	141		141		139
Segment Totals \| Power
Segment Information
Total Assets	282		282		283
Segment Totals \| Turkey
Segment Information
Total Assets	253		253		275
Segment Totals \| All Other
Segment Information
Total Assets	7		7		10
Corporate
Segment Information
Operating Income (Loss)	(10)	$ (9)	(5)	$ (17)
Total Assets	$ 1,357		$ 1,357		$ 1,601