v3.20.4
Property, Plant and Equipment, Net - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property Plant And Equipment [Line Items]      
Interest expense capitalized $ 48 $ 31  
Depreciation expense 1,570 1,370 $ 1,110
Gross finance leased assets 2,280 2,080  
Accumulated depreciation on property and equipment under finance leases 816 483  
Property, plant and equipment, net 12,747 10,396  
Incentives for making manufacturing equipment investments 122 85  
Incentives received in cash 123 46  
Incentives received in form of assets and services   39  
Production Equipment [Member]      
Property Plant And Equipment [Line Items]      
Property, plant and equipment, net $ 1,770 $ 1,730