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Property, Plant And Equipment (Details) - USD ($)
$ in Millions
Oct. 02, 2021
Oct. 03, 2020
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 16,516 $ 15,581
Less accumulated depreciation 8,679 7,985
Net property, plant and equipment 7,837 7,596
Amount required to complete construction of buildings and equipment under construction 2,337  
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 210 196
Buildings And Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 5,370 4,961
Machinery And Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 9,507 9,013
Land Improvements And Other [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 453 420
Buildings And Equipment Under Construction [Member]    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 976 $ 991