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Other Accounts Receivable - Summary of Consolidated Other Accounts Receivable (Detail) - MXN ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Miscellaneous current assets [abstract]    
Non-trade accounts receivable $ 2,712 $ 1,918
Interest and notes receivable 895 1,125
Current portion of valuation of derivative financial instruments 8 1,056
Loans to employees and others 243 233
Refundable taxes 2,291 638
Other accounts receivable $ 6,149 $ 4,970