Other Current Assets and Other Current Financial Assets - Summary of Other Current Financial Assets (Detail) $ in Millions, $ in Millions	Dec. 31, 2017 MXN ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 MXN ($)
Disclosure of other financial assets [abstract]
Restricted cash	$ 504		$ 774
Derivative financial instruments	233		737
Total	$ 737	$ 38	$ 1,511

The amount of current derivative financial assets. [Refer: Derivative financial assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of current financial assets that the entity does not separately disclose in the same statement or note. [Refer: Other financial assets; Current financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents]

+ References

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Disclosure of other financial assets.

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No definition available.

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