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Other Accounts Receivable - Summary of Consolidated Other Accounts Receivable (Detail) - MXN ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Miscellaneous current assets [abstract]    
Non-trade accounts receivable $ 1,918 $ 2,527
Interest and notes receivable 1,125 1,286
Current portion of valuation of derivative financial instruments 1,056 236
Loans to employees and others 233 188
Refundable taxes 638 1,001
Other accounts receivable $ 4,970 $ 5,238