Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Revenue Recognition
Net sales	$ 1,808	$ 1,822	$ 3,491	$ 3,365
Transferred at point in time | Net sales
Revenue Recognition
Concentration risk percentage	85.00%	85.00%	85.00%	85.00%
Products
Revenue Recognition
Net sales	$ 1,589	$ 1,513	$ 2,971	$ 2,758
Other
Revenue Recognition
Net sales	13	34	31	63
Pork
Revenue Recognition
Net sales	459	492	914	895
Pork | Products
Revenue Recognition
Net sales	409	427	814	784
Pork | Transportation
Revenue Recognition
Net sales	2	3	4	7
Pork | Energy
Revenue Recognition
Net sales	40	53	80	87
Pork | Other
Revenue Recognition
Net sales	8	9	16	17
CT&M
Revenue Recognition
Net sales	1,123	1,002	2,037	1,831
CT&M | Products
Revenue Recognition
Net sales	1,119	999	2,029	1,825
CT&M | Other
Revenue Recognition
Net sales	4	3	8	6
Marine
Revenue Recognition
Net sales	192	259	461	513
Marine | Transportation
Revenue Recognition
Net sales	192	259	461	513
Sugar and Alcohol
Revenue Recognition
Net sales	18	30	40	55
Sugar and Alcohol | Products
Revenue Recognition
Net sales	18	29	39	54
Sugar and Alcohol | Energy
Revenue Recognition
Net sales		1	1	1
Power
Revenue Recognition
Net sales	13	33	30	62
Power | Energy
Revenue Recognition
Net sales	13	33	30	62
All Other
Revenue Recognition
Net sales	3	6	9	9
All Other | Products
Revenue Recognition
Net sales	3	5	9	8
All Other | Transportation
Revenue Recognition
Net sales		1		1
Segment Totals
Revenue Recognition
Net sales	1,808	1,822	3,491	3,365
Segment Totals | Products
Revenue Recognition
Net sales	1,549	1,460	2,891	2,671
Segment Totals | Transportation
Revenue Recognition
Net sales	194	263	465	521
Segment Totals | Energy
Revenue Recognition
Net sales	53	87	111	150
Segment Totals | Other
Revenue Recognition
Net sales	$ 12	$ 12	$ 24	$ 23