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Stockholders' Equity - Additional Information (Detail)
$ / shares in Units, $ in Millions, $ in Millions
 12 Months Ended
Mar. 30, 2017
MXN ($)
$ / shares
shares
Mar. 31, 2016
MXN ($)
$ / shares
shares
Mar. 26, 2015
MXN ($)
$ / shares
shares
Dec. 31, 2017
MXN ($)
shares
Dec. 31, 2016
MXN ($)
shares
Dec. 31, 2015
MXN ($)
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2017
MXN ($)
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2016
MXN ($)
shares
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2015
MXN ($)
shares
Disclosure of Classes of Share Capital [Line Items]                        
Investment in CPOs       $ 301 $ 327              
Investment in CPOs | shares       20,541,277 19,751,229              
Increase in variable common stock issued through the capitalization of retained earning | shares 1,687,000,000 1,616,000,000 1,500,000,000                  
Increase in common stock $ 5 $ 4 $ 4                  
Nominal value of common stock per CPO | $ / shares $ 0.00833 $ 0.00833 $ 0.00833                  
Additional paid-in capital $ 9,459 $ 6,966 $ 7,613         $ 140,483   $ 123,174    
Increase in variable common stock issued to preserve the anti-dilutive rights of note holders | shares 258,000,000 297,000,000 297,000,000                  
Percentage of net income allocation toward legal reserve       5.00%                
Legal reserve               1,804        
Non-controlling interest and perpetual debentures               30,879   28,951    
Other equity reserve               13,483   24,793    
Additional paid-in capital [member]                        
Disclosure of Classes of Share Capital [Line Items]                        
Additional paid-in capital               817   742   $ 655
Non-controlling Interest [Member]                        
Disclosure of Classes of Share Capital [Line Items]                        
Non-controlling interest and perpetual debentures               22,095   19,876    
Net income attributable to noncontroling interest       $ 1,417 $ 1,173 $ 923            
Interest Expense [Member]                        
Disclosure of Classes of Share Capital [Line Items]                        
Other equity reserve               482   507   432
Caribbean TCL [member] | Trinidad Cement Limited [member]                        
Disclosure of Classes of Share Capital [Line Items]                        
Non-controlling ownership interest percentage       30.20%                
Perpetual Subordinated Bonds [Member]                        
Disclosure of Classes of Share Capital [Line Items]                        
Non-controlling interest and perpetual debentures             $ 447 $ 8,784 $ 438 $ 9,075 $ 440 $ 7,581
CPO [Member]                        
Disclosure of Classes of Share Capital [Line Items]                        
Increase in variable common stock issued through the capitalization of retained earning | shares 562,000,000 539,000,000 500,000,000                  
Increase in variable common stock issued to preserve the anti-dilutive rights of note holders | shares 86,000,000 99,000,000 99,000,000                  
Number of shares issued | shares             53,200,000 53,200,000 53,900,000 53,900,000 49,200,000 49,200,000