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Inventories (Details) - USD ($)
$ in Millions
Apr. 04, 2021
Jan. 03, 2021
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 1,557 $ 1,410
Goods in process 2,034 2,040
Finished goods 6,361 5,894
Total inventories $ 9,952 $ 9,344