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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Taxes [Line Items]      
Undistributed earnings of certain foreign subsidiaries $ 6,150    
Income taxes paid, net 336 $ 484  
Income tax loss carryforwards 2,920    
Tax credit carryforwards 64    
Total losses 1,900    
Gross unrecognized tax benefits 182 192 $ 198
Gross unrecognized tax benefits that would affect the Company's effective tax rate 165 174  
Interest and penalties on the unrecognized tax benefits 43 46  
(Decrease)/Increase in expenses related to changes in its reserves for interest and penalties (3) $ 7  
Decrease in gross unrecognized tax benefits 66    
Amount of decrease of gross unrecognized tax benefits that would affect effective tax rate if recognized $ 58    
Income tax examination in germany 2007    
Income tax examination in mexico 2014    
Income tax examination in canada us federal jurisdiction and austria 2015    
Minimum [Member]      
Income Taxes [Line Items]      
Expiry date of operating losses and tax credit carryforwards 2021    
Maximum [Member]      
Income Taxes [Line Items]      
Expiry date of operating losses and tax credit carryforwards 2040