XML 208 R166.htm IDEA: XBRL DOCUMENT v3.8.0.1
Legal Proceedings - Additional Information (Detail)
$ in Millions, $ in Millions
 1 Months Ended 12 Months Ended
Jul. 13, 2013
Dec. 31, 2017
USD ($)
Dec. 31, 2017
MXN ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2016
MXN ($)
Dec. 31, 2015
MXN ($)
Dec. 31, 2016
MXN ($)
Disclosure of Commitments and Contingencies [Line Items]              
Lease contract for a period 5 years            
Cash advances by CEMEX Colombia   $ 13.4          
Interest for advances   $ 1.2          
Purchase of the assets related to the project in Colombian pesos       $ 14.3     $ 295
Impairment loss     $ 984   $ 1,899 $ 1,145  
VAT Payable [member]              
Disclosure of Commitments and Contingencies [Line Items]              
Accounts payable       9.2     191
Bottom of range [member]              
Disclosure of Commitments and Contingencies [Line Items]              
Expiration of property over the aforementioned assets   5 years 5 years        
Top of range [member]              
Disclosure of Commitments and Contingencies [Line Items]              
Expiration of property over the aforementioned assets   10 years 10 years        
Maceo plant [member]              
Disclosure of Commitments and Contingencies [Line Items]              
Impairment loss       0.0      
Consideration transferred       $ 9.1     $ 188
Investment in plant   $ 340.0          
Net book value of adjustment in investment property   $ 333.0 $ 6,543