Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Revenue Recognition
Net sales	$ 1,691	$ 1,422	$ 3,270	$ 2,821
Transferred at point in time | Net sales
Revenue Recognition
Concentration risk percentage			85.00%
Products
Revenue Recognition
Net sales	1,382	1,153	$ 2,673	2,278
Other
Revenue Recognition
Net sales	31	24	55	49
Pork
Revenue Recognition
Net sales	442	414	908	784
Pork | Products
Revenue Recognition
Net sales	365		726
Pork | Transportation
Revenue Recognition
Net sales	4		8
Pork | Energy
Revenue Recognition
Net sales	66		159
Pork | Other
Revenue Recognition
Net sales	7		15
Commodity Trading and Milling
Revenue Recognition
Net sales	890	701	1,676	1,428
Commodity Trading and Milling | Products
Revenue Recognition
Net sales	885		1,666
Commodity Trading and Milling | Other
Revenue Recognition
Net sales	5		10
Marine
Revenue Recognition
Net sales	263	232	512	466
Marine | Transportation
Revenue Recognition
Net sales	263		512
Sugar
Revenue Recognition
Net sales	61	48	112	88
Sugar | Products
Revenue Recognition
Net sales	60		110
Sugar | Energy
Revenue Recognition
Net sales	1		2
Power
Revenue Recognition
Net sales	31	23	54	47
Power | Energy
Revenue Recognition
Net sales	31		54
All Other
Revenue Recognition
Net sales	4	$ 4	8	$ 8
All Other | Products
Revenue Recognition
Net sales	4		8
Segment Totals
Revenue Recognition
Net sales	1,691		3,270
Segment Totals | Products
Revenue Recognition
Net sales	1,314		2,510
Segment Totals | Transportation
Revenue Recognition
Net sales	267		520
Segment Totals | Energy
Revenue Recognition
Net sales	98		215
Segment Totals | Other
Revenue Recognition
Net sales	$ 12		$ 25