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Fixed Assets - Summary of Fixed Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Property Plant And Equipment [Line Items]    
Fixed assets gross $ 28,386 $ 29,077
Less: Accumulated depreciation 21,779 22,648
Fixed assets less accumulated depreciation 6,607 6,429
Land    
Property Plant And Equipment [Line Items]    
Fixed assets gross 326 372
Buildings & improvements    
Property Plant And Equipment [Line Items]    
Fixed assets gross 4,328 4,371
Machinery & equipment    
Property Plant And Equipment [Line Items]    
Fixed assets gross $ 23,732 $ 24,334