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Valuation of derivatives interest cost from labor obligations and other financial items net - Schedule of Valuation of Derivatives and Other Financial Items (Detail) $ in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2019 MXN ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 MXN ($) | Dec. 31, 2017 MXN ($)
Disclosure of detailed information about financial instruments [abstract] |  |  |  |
Gain (loss) in valuation of derivatives, net | $ 4,432,023 |  | $ (4,686,407) | $ 8,192,567
Capitalized interest expense (Note 10 c) | 2,233,358 |  | 2,020,288 | 2,875,034
Commissions | (2,820,477) |  | (1,901,473) | (1,263,701)
Interest cost of labor obligations (Note 18) | (11,377,054) |  | (9,968,526) | (8,722,611)
Interest expense on taxes | (516,522) |  | (555,921) | (1,503,981)
Dividend received (Note 4) | 1,773,336 |  | 2,605,333 | 2,385,559
Gain on net monetary positions | 4,267,194 | $ 226 | 4,429,145 |
Other financial cost | (5,067,200) |  | (2,118,755) | (3,906,627)
Total | $ (7,075,342) | $ (375) | $ (10,176,316) | $ (1,943,760)

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- Definition Interest expense on taxes. + References No definition available. + Details
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- Definition Net finance cost on gross debt including related derivatives. + References No definition available. + Details
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- Definition Valuation of derivatives, interest cost from labor obligations and other financial items, net. + References No definition available. + Details
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- Definition The amount of expense relating to fees and commissions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_85&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The gains (losses) representing the difference resulting from the restatement of non-monetary assets, owners' equity and items in the statement of comprehensive income and the adjustment of index linked assets and liabilities in hyperinflationary reporting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 29 -IssueDate 2019-01-01 -Paragraph 9 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=29&code=ifrs-tx-2019-en-r&anchor=para_9&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The gains resulting from change in the fair value of derivatives recognised in profit or loss. [Refer: Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_85&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of interest costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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