Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Revenue Recognition
Net sales	$ 1,663	$ 1,651	$ 5,028	$ 4,921
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	$ 1,359	$ 1,338	$ 4,117	$ 4,011
Other
Revenue Recognition
Net sales	34	40	97	95
Pork
Revenue Recognition
Net sales	423	412	1,318	1,320
Pork | Products
Revenue Recognition
Net sales	381	334	1,165	1,060
Pork | Transportation
Revenue Recognition
Net sales		4	7	12
Pork | Energy
Revenue Recognition
Net sales	35	66	122	225
Pork | Other
Revenue Recognition
Net sales	7	8	24	23
CT&M
Revenue Recognition
Net sales	913	898	2,744	2,574
CT&M | Products
Revenue Recognition
Net sales	906	894	2,731	2,560
CT&M | Other
Revenue Recognition
Net sales	7	4	13	14
Marine
Revenue Recognition
Net sales	256	259	769	771
Marine | Transportation
Revenue Recognition
Net sales	256	259	769	771
Sugar and Alcohol
Revenue Recognition
Net sales	36	43	91	155
Sugar and Alcohol | Products
Revenue Recognition
Net sales	32	39	86	149
Sugar and Alcohol | Energy
Revenue Recognition
Net sales	4	4	5	6
Power
Revenue Recognition
Net sales	30	34	92	88
Power | Energy
Revenue Recognition
Net sales	30	34	92	88
All Other
Revenue Recognition
Net sales	5	5	14	13
All Other | Products
Revenue Recognition
Net sales	5	5	13	13
All Other | Transportation
Revenue Recognition
Net sales			1
Segment Totals
Revenue Recognition
Net sales	1,663	1,651	5,028	4,921
Segment Totals | Products
Revenue Recognition
Net sales	1,324	1,272	3,995	3,782
Segment Totals | Transportation
Revenue Recognition
Net sales	256	263	777	783
Segment Totals | Energy
Revenue Recognition
Net sales	69	104	219	319
Segment Totals | Other
Revenue Recognition
Net sales	$ 14	12	$ 37	$ 37
Segment Totals | Pork
Revenue Recognition
Net sales		412
Segment Totals | CT&M
Revenue Recognition
Net sales		898
Segment Totals | Marine
Revenue Recognition
Net sales		259
Segment Totals | Sugar and Alcohol
Revenue Recognition
Net sales		43
Segment Totals | Power
Revenue Recognition
Net sales		34
Segment Totals | All Other
Revenue Recognition
Net sales		$ 5