Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Revenue Recognition
Net sales	$ 1,683	$ 1,543
Transferred at point in time | Net sales
Revenue Recognition
Concentration risk percentage	85.00%	85.00%
Products
Revenue Recognition
Net sales	$ 1,382	$ 1,245
Other
Revenue Recognition
Net sales	18	29
Pork
Revenue Recognition
Net sales	455	403
Pork | Products
Revenue Recognition
Net sales	405	357
Pork | Transportation
Revenue Recognition
Net sales	2	4
Pork | Energy
Revenue Recognition
Net sales	40	34
Pork | Other
Revenue Recognition
Net sales	8	8
CT&M
Revenue Recognition
Net sales	914	829
CT&M | Products
Revenue Recognition
Net sales	910	826
CT&M | Other
Revenue Recognition
Net sales	4	3
Marine
Revenue Recognition
Net sales	269	254
Marine | Transportation
Revenue Recognition
Net sales	269	254
Sugar and Alcohol
Revenue Recognition
Net sales	22	25
Sugar and Alcohol | Products
Revenue Recognition
Net sales	21	25
Sugar and Alcohol | Energy
Revenue Recognition
Net sales	1
Power
Revenue Recognition
Net sales	17	29
Power | Energy
Revenue Recognition
Net sales	17	29
All Other
Revenue Recognition
Net sales	6	3
All Other | Products
Revenue Recognition
Net sales	6	3
Segment Totals
Revenue Recognition
Net sales	1,683	1,543
Segment Totals | Products
Revenue Recognition
Net sales	1,342	1,211
Segment Totals | Transportation
Revenue Recognition
Net sales	271	258
Segment Totals | Energy
Revenue Recognition
Net sales	58	63
Segment Totals | Other
Revenue Recognition
Net sales	$ 12	$ 11