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Inventories Components of Inventories (Details) - USD ($)
$ in Millions
Dec. 25, 2021
Dec. 26, 2020
Inventory Disclosure [Abstract]    
Packaging and ingredients $ 571 $ 482
Spare parts 208 219
Work in process 268 268
Finished product 1,682 1,804
Inventories $ 2,729 $ 2,773