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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, 2017
USD ($)
T
Dec. 31, 2017
MXN ($)
T
Dec. 31, 2016
MXN ($)
Dec. 31, 2015
MXN ($)
Dec. 31, 2017
MXN ($)
Disclosure of detailed information about property, plant and equipment [line items]          
Carrying amount of assets through leased back     $ 1,777   $ 1,690
Reclassifications   $ (1,634) (4,549) $ (3,099)  
Colombia [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Annual production capacity | T 1.1 1.1      
Reduction in investment $ 23 $ 483      
Impairment loss recognized in other expenses, net 14 295      
Other accounts payable 9       188
Investment in plant 340        
Mexico [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets   343 281    
United States [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets   223 317 451  
Assets available for sale     1,386 537  
Spain [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets   220   417  
France [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets     165    
United Kingdom [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Sale of fixed assets       584  
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   0 (86)    
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 $ 333 $ 6,543      
Mobile equipment [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Carrying amount of assets acquired through capital lease     $ 7 $ 63 $ 2,096