Quarterly report pursuant to Section 13 or 15(d)

Property Plant and Equipment (Detail)

v3.7.0.1
Property Plant and Equipment (Detail) - USD ($)
$ in Millions
Mar. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 44,509 $ 43,674
Less: Accumulated depreciation and amortization (25,284) (24,874)
Property, plant and equipment, net 19,225 18,800
Vehicles [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 8,729 8,638
Aircraft (including aircraft under capital leases) [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 15,666 15,653
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 1,480 1,397
Buildings [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 3,498 3,439
Building and leasehold improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 3,649 3,612
Plant Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 8,569 8,430
Technology equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 1,774 1,741
Equipment under operating leases [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 29 29
Construction-in-progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 1,115 $ 735