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Property, Machinery and Equipment, Net - Disclosure of Net Change in Property, Machinery and Equipment (Parenthetical) (Detail)
T in Millions, $ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2018
MXN ($)
T
Dec. 31, 2018
USD ($)
T
Dec. 31, 2017
MXN ($)
Dec. 31, 2016
MXN ($)
Dec. 31, 2018
USD ($)
Disclosure of detailed information about property, plant and equipment [line items]          
Carrying amount of assets through leased back $ 1,602   $ 1,690    
Reclassifications $ 101   (1,634) $ (4,549)  
Colombia [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Annual production capacity | T 1.1 1.1      
Reduction in investment $ 483 $ 23      
Impairment loss recognized in other expenses, net 295 14      
Other accounts payable 188       $ 9
Mexico [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets 125   343 281  
United States [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets 371   223 317  
Assets available for sale       1,386  
Spain [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets 158   220    
Reclassifications 580        
France [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets       165  
Pacific Northwest Materials Business [member] | United States [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Reclassifications     1,634    
Concrete Pipe Business Segment [member] | United States [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Reclassifications       2,747  
Construction in progress [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Reclassifications 580   0    
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 5,502 $ 280      
Mobile equipment [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Carrying amount of assets acquired through capital lease $ 88   $ 2,096 $ 7