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v3.19.1

Basis of Preparation of the Consolidated Financial Statements and Summary of Significant Accounting Policies and Practices - Schedule of Impact in Consolidated Financial Statements upon Application of Hyperinflation (Detail) $ in Thousands, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 MXN ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 MXN ($) | Dec. 31, 2016 MXN ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2015 MXN ($)
Disclosure of corporate information [Line Items] |  |  |  |  |  |
Operating revenues | $ 1,038,207,681 | $ 52,747 | $ 1,021,633,535 | $ 975,412,488 |  |
Gain on net monetary positions | 4,429,145 | 225 |  |  |  |
Income tax | (46,477,079) | (2,361) | (24,941,511) | (11,398,856) |  |
Operating income | 139,557,171 | $ 7,090 | 100,143,303 | 109,610,310 |  |
Current assets | 349,055,524 |  | 342,235,218 |  | $ 17,734 |
Total liabilities | 1,183,350,970 |  | 1,225,578,335 | 1,244,018,507 | 60,121 |
Total equity | 245,872,422 |  | $ 260,633,517 | $ 271,023,767 | $ 12,492 | $ 160,854,186
Argentina [member] | Impact of application of hyperinflation adjustments in 2018 [member] |  |  |  |  |  |
Disclosure of corporate information [Line Items] |  |  |  |  |  |
Operating revenues | 6,286,140 |  |  |  |  |
Operating loss | (1,423,252) |  |  |  |  |
Financial loss | (1,289,317) |  |  |  |  |
Gain on net monetary positions | 4,429,145 |  |  |  |  |
Income tax | (770,928) |  |  |  |  |
Operating income | 945,647 |  |  |  |  |
Current assets | 1,866,674 |  |  |  |  |
Non-current assets | 19,796,073 |  |  |  |  |
Total liabilities | 4,890,166 |  |  |  |  |
Total equity | $ 16,772,581 |  |  |  |  |

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