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Other Current Assets and Other Current Financial Assets - Summary of Other Current Financial Assets (Detail) $ in Millions, $ in Millions | Dec. 31, 2017 MXN ($) | Dec. 31, 2017 USD ($) | [1] | Dec. 31, 2016 MXN ($)
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Disclosure Of Other Current Financial Assets [Abstract] |  |  |
Restricted cash | $ 504 |  | $ 774
Derivative financial instruments (see Note 20) | 233 |  | 1,917
Short term note receivable | 19 |  | 14
Other current financial assets | $ 756 | $ 38 | $ 2,705
[1] | Convenience translation to U.S. dollars ($) - See Note 2.2.3

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