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Property, Machinery and Equipment, Net - Summary of Recognized Impairment Losses (Detail) - MXN ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | $ 984 | $ 1,899 | $ 1,145
Spain [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 452 | 0 | 392
Czech Republic [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 157 | 0 | 0
United States [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 153 | 277 | 269
Panama [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 56 | 0 | 118
France [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 50 | 0 | 0
Latvia [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 46 | 0 | 126
Mexico [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 45 | 46 | 46
Puerto Rico [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 0 | 1,087 | 172
Colombia [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | 0 | 454 | 0
Other countries [member] |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |
Impairment losses | $ 25 | $ 35 | $ 22

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- Definition The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 130 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130_b&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 130 -Subparagraph d -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130_d_ii&doctype=Standard -URIDate 2017-03-09 + Details
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