Inventories (Details) - USD ($) $ in Millions	Apr. 03, 2021	Dec. 31, 2020
At lower of FIFO cost and net realizable value (NRV):
Hogs and materials	$ 467	$ 437
Pork products and materials	56	46
Grains, oilseeds and other commodities	472	380
Biodiesel	101	72
Sugar produced and in process	26	24
Other	50	61
Total inventories at lower of FIFO cost and NRV	1,172	1,020
Grain, flour and feed at lower of weighted average cost and NRV	188	158
Total inventories	$ 1,360	$ 1,178