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Segment Information-Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Dec. 31, 2018
Segment Information
Sales to External Customers	$ 1,822	$ 1,691	$ 3,365	$ 3,270
Operating Income (Loss)	53	32	19	129
Income (loss) from affiliates	(16)	(16)	(34)	(22)
Total Assets	5,901		5,901		$ 5,307
Investment in and Advances to Affiliates	783		783		804
Pork
Segment Information
Sales to External Customers	492	442	895	908
Operating Income (Loss)	25	17	(9)	109
Income (loss) from affiliates	(6)	(6)	(14)	(13)
Investment in and Advances to Affiliates	188		188		192
CT&M
Segment Information
Sales to External Customers	1,002	890	1,831	1,676
Operating Income (Loss)	29	(2)	36	9
Income (loss) from affiliates	(5)	(4)	(5)	(6)
Investment in and Advances to Affiliates	252		252		255
Marine
Segment Information
Sales to External Customers	259	263	513	512
Operating Income (Loss)	4	4	4
Income (loss) from affiliates		1	1	1
Investment in and Advances to Affiliates	31		31		28
Sugar and Alcohol
Segment Information
Sales to External Customers	30	61	55	112
Operating Income (Loss)	(4)	10	(8)	12
Income (loss) from affiliates	1		1
Investment in and Advances to Affiliates	5		5		4
Power
Segment Information
Sales to External Customers	33	31	62	54
Operating Income (Loss)	8	6	12	6
Income (loss) from affiliates	2	1	2	3
Investment in and Advances to Affiliates	32		32		30
Turkey
Segment Information
Income (loss) from affiliates	(8)	(8)	(19)	(7)
Investment in and Advances to Affiliates	275		275		295
All Other
Segment Information
Sales to External Customers	6	4	9	8
Operating Income (Loss)		1	1	1
Segment Totals
Segment Information
Sales to External Customers	1,822	1,691	3,365	3,270
Operating Income (Loss)	62	36	36	137
Income (loss) from affiliates	(16)	(16)	(34)	(22)
Total Assets	4,272		4,272		3,716
Segment Totals \| Pork
Segment Information
Sales to External Customers		442
Total Assets	1,548		1,548		1,304
Segment Totals \| CT&M
Segment Information
Sales to External Customers		890
Total Assets	1,516		1,516		1,423
Segment Totals \| Marine
Segment Information
Sales to External Customers		263
Total Assets	534		534		345
Segment Totals \| Sugar and Alcohol
Segment Information
Sales to External Customers		61
Total Assets	138		138		138
Segment Totals \| Power
Segment Information
Sales to External Customers		31
Total Assets	250		250		203
Segment Totals \| Turkey
Segment Information
Total Assets	275		275		295
Segment Totals \| All Other
Segment Information
Sales to External Customers		4
Total Assets	11		11		8
Corporate Items
Segment Information
Operating Income (Loss)	(9)	$ (4)	(17)	$ (8)
Total Assets	$ 1,629		$ 1,629		$ 1,591