Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Revenue Recognition
Net sales	$ 1,651	$ 1,402	$ 4,921	$ 4,223
Transferred at point in time | Net sales
Revenue Recognition
Concentration risk percentage			85.00%
Products
Revenue Recognition
Net sales	1,338	1,135	$ 4,011	3,413
Other
Revenue Recognition
Net sales	40	29	95	78
Pork
Revenue Recognition
Net sales	412	404	1,320	1,188
Pork | Products
Revenue Recognition
Net sales	334		1,060
Pork | Transportation
Revenue Recognition
Net sales	4		12
Pork | Energy
Revenue Recognition
Net sales	66		225
Pork | Other
Revenue Recognition
Net sales	8		23
Commodity Trading and Milling
Revenue Recognition
Net sales	898	694	2,574	2,122
Commodity Trading and Milling | Products
Revenue Recognition
Net sales	894		2,560
Commodity Trading and Milling | Other
Revenue Recognition
Net sales	4		14
Marine
Revenue Recognition
Net sales	259	225	771	691
Marine | Transportation
Revenue Recognition
Net sales	259		771
Sugar
Revenue Recognition
Net sales	43	50	155	138
Sugar | Products
Revenue Recognition
Net sales	39		149
Sugar | Energy
Revenue Recognition
Net sales	4		6
Power
Revenue Recognition
Net sales	34	25	88	72
Power | Energy
Revenue Recognition
Net sales	34		88
All Other
Revenue Recognition
Net sales	5	$ 4	13	$ 12
All Other | Products
Revenue Recognition
Net sales	5		13
Segment Totals
Revenue Recognition
Net sales	1,651		4,921
Segment Totals | Products
Revenue Recognition
Net sales	1,272		3,782
Segment Totals | Transportation
Revenue Recognition
Net sales	263		783
Segment Totals | Energy
Revenue Recognition
Net sales	104		319
Segment Totals | Other
Revenue Recognition
Net sales	$ 12		$ 37