Segment Information-Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020	Dec. 31, 2020
Segment Information
Operating Income (Loss)	$ 112	$ 39	$ 369	$ 111
Income (loss) from affiliates	(1)	(6)		(27)
Total assets	7,257		7,257		$ 6,399
Investment in and Advances to Affiliates	656		656		698
Pork segment
Segment Information
Income (loss) from affiliates			(2)	(3)
Investment in and Advances to Affiliates	147		147		172
Commodity Trading and Milling
Segment Information
Income (loss) from affiliates	7	(3)	17	(2)
Investment in and Advances to Affiliates	227		227		222
Marine
Segment Information
Income (loss) from affiliates	2	1	4	3
Investment in and Advances to Affiliates	31		31		30
Sugar and Alcohol
Segment Information
Investment in and Advances to Affiliates	3		3		6
Power
Segment Information
Investment in and Advances to Affiliates	3		3		3
Turkey
Segment Information
Income (loss) from affiliates	(10)	(4)	(19)	(25)
Investment in and Advances to Affiliates	245		245		265
Segment Totals
Segment Information
Operating Income (Loss)	116	58	385	135
Income (loss) from affiliates	(1)	(6)		(27)
Total assets	5,511		5,511		4,746
Segment Totals | Pork segment
Segment Information
Operating Income (Loss)	52	14	242	55
Total assets	2,226		2,226		1,927
Segment Totals | Commodity Trading and Milling
Segment Information
Operating Income (Loss)	25	28	57	82
Total assets	1,918		1,918		1,585
Segment Totals | Marine
Segment Information
Operating Income (Loss)	42	14	95	(3)
Total assets	629		629		508
Segment Totals | Sugar and Alcohol
Segment Information
Operating Income (Loss)		(1)		(4)
Total assets	153		153		153
Segment Totals | Power
Segment Information
Operating Income (Loss)	(3)	3	(10)	4
Total assets	332		332		302
Segment Totals | Turkey
Segment Information
Total assets	245		245		265
Segment Totals | All Other
Segment Information
Operating Income (Loss)			1	1
Total assets	8		8		6
Corporate Items
Segment Information
Operating Income (Loss)	(4)	$ (19)	(16)	$ (24)
Total assets	$ 1,746		$ 1,746		$ 1,653