Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT (Detail)

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PROPERTY, PLANT AND EQUIPMENT (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 62,091 $ 59,727
Less: Accumulated depreciation and amortization (29,837) (29,245)
Property, plant and equipment, net 32,254 30,482
Vehicles    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 9,786 10,613
Aircraft    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 20,549 19,045
Land    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 2,052 2,087
Buildings    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 5,425 5,046
Building and leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 4,921 4,898
Plant equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 14,684 13,849
Technology equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 2,626 2,206
Construction-in-progress    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 2,048 $ 1,983