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Equity Accounted Investees, Other Investments and Non-Current Accounts Receivable - Summary of Share of Profit of Equity Accounted Investees by Geographic Operating Segment (Detail) - MXN ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of associates [line items]      
Share of profit of equity accounted investees $ 588 $ 688 $ 737
Mexico [member]      
Disclosure of associates [line items]      
Share of profit of equity accounted investees 269 452 330
United States [member]      
Disclosure of associates [line items]      
Share of profit of equity accounted investees 266 253 92
Europe [member]      
Disclosure of associates [line items]      
Share of profit of equity accounted investees 108 54 339
Corporate and others [member]      
Disclosure of associates [line items]      
Share of profit of equity accounted investees $ (55) $ (71) $ (24)