XML 169 R152.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes - Expiration of tax loss carryforwards (Details) - MXN ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Taxes      
Tax loss carryforwards for which deferred taxes were recognized $ 41,363,300    
Benefit from tax loss carryforwards derived from the disposal in 2014 of its investment in GSF 13,996,133    
Tax loss carryforwards derived from disposal of GSF for which deferred taxes were recognized 10,497,100    
2018      
Income Taxes      
Tax loss carryforwards for which deferred taxes were recognized 55,400    
2019      
Income Taxes      
Tax loss carryforwards for which deferred taxes were recognized 819,597    
2020      
Income Taxes      
Tax loss carryforwards for which deferred taxes were recognized 232,925    
2021      
Income Taxes      
Tax loss carryforwards for which deferred taxes were recognized 7,210,423    
2022      
Income Taxes      
Tax loss carryforwards for which deferred taxes were recognized 10,626,630    
Thereafter      
Income Taxes      
Tax loss carryforwards for which deferred taxes were recognized 22,418,325    
Expires between 2019 and 2027      
Income Taxes      
Unused tax loss carryforwards for which no deferred taxes were recognized 2,283,423    
Expires between 2018 and 2036      
Income Taxes      
Tax loss carryforwards of subsidiaries in South America, the United States, and Europe 2,925,562    
Certain Mexican subsidiaries      
Income Taxes      
Utilized tax loss carryforwards $ 5,806,602 $ 1,236,444 $ 2,931,218