Other Liabilities, Provisions, Contingencies and Commitments - Schedule of Future Minimum Lease Payments (Detail) - MXN ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Disclosure of financial liabilities [line items]
Minimum payments	$ 132	$ 135
Present value of minimum lease payments	116	112
Minimum Payments [Member]
Disclosure of financial liabilities [line items]
Less amount representing finance charges	16	23
Present value of minimum lease payments	116	112
Less than 1 year [member]
Disclosure of financial liabilities [line items]
Minimum payments	41	32
Present value of minimum lease payments	34	(68)
1-5 years [Member]
Disclosure of financial liabilities [line items]
Minimum payments	91	103
Present value of minimum lease payments	$ 82	83
Later than 5 years [member]
Disclosure of financial liabilities [line items]
Present value of minimum lease payments		$ 97

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- Definition

The amount representing the difference between the future minimum finance lease payments and their present value. Minimum lease payments are payments over the lease term that the lessee is or can be required to make, excluding contingent rent, costs for services and taxes to be paid by, and reimbursed to, the lessor, together with: (a) for a lessee, any amounts guaranteed by the lessee or by a party related to the lessee; or (b) for a lessor, any residual value guaranteed to the lessor by: (i) the lessee; (ii) a party related to the lessee; or (iii) a third party unrelated to the lessor that is financially capable of discharging the obligations under the guarantee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2019-01-01
-Name IAS
-Number 17
-IssueDate 2017-01-01
-Paragraph 31
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2017-03-02&anchor=para_31_b&doctype=Standard&book=B
-URIDate 2017-03-09

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- Definition

The amount of payments over the finance lease term that the lessee is or can be required to make, excluding contingent rent, costs for services and taxes to be paid by, and reimbursed to, the lessor, together with any amounts guaranteed by the lessee or by a party related to the lessee.

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- Definition

The present value of minimum finance lease payments payable. [Refer: Minimum finance lease payments payable]

+ References

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