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Property, Machinery and Equipment, Net and Assets For The Right-Of-Use, Net - Disclosure of Net Change in Property, Machinery and Equipment (Parenthetical) (Detail)
T in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2020
USD ($)
T
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Disclosure of detailed information about property, plant and equipment [line items]      
Reclassifications $ (88) $ (402) $ 6
Mexico [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Annual production capacity | T 1.1    
Sale of fixed assets     6
United States [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Sale of fixed assets $ 18   19
Reclassifications   134  
Spain [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Sale of fixed assets     8
Reclassifications   86 $ 30
France [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Sale of fixed assets   12  
United Kingdom [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Sale of fixed assets 28 6  
Reclassifications   182  
Germany [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Sale of fixed assets   32  
Construction in progress [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value of adjustment in investment property 23    
Reclassifications   $ (13)  
Construction in progress [member] | Colombia [member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Net book value of adjustment in investment property $ 270