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Derivative Financial Instruments - Schedule of Derivative Financial Instruments Contracted (Detail) € in Thousands, $ in Thousands, $ in Thousands, ¥ in Millions, £ in Millions, SFr in Millions, R$ in Millions | Dec. 31, 2018 MXN ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 BRL (R$) | Dec. 31, 2018 EUR (€) | Dec. 31, 2018 GBP (£) | Dec. 31, 2018 JPY (¥) | Dec. 31, 2017 MXN ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2017 BRL (R$) | Dec. 31, 2017 EUR (€) | Dec. 31, 2017 CHF (SFr) | Dec. 31, 2017 GBP (£) | Dec. 31, 2017 JPY (¥)
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Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value, Asset | $ 5,287,548 | $ 269,000 |  |  |  |  | $ 8,037,384 |  |  |  |  |  |
Fair value, Liabilities | (17,107,579) |  |  |  |  |  | (14,359,460) |  |  |  |  |  |
Non-current liability | (3,567,863) | (181,000) |  |  |  |  | (3,756,921) |  |  |  |  |  |
Total current liability | (13,539,716) | (688,000) |  |  |  |  | (10,602,539) |  |  |  |  |  |
Swaps US Dollar-Mexican peso [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset |  | 3,490,000 |  |  |  |  |  | $ 2,800,000 |  |  |  |  |
Fair value, Asset | 2,058,831 |  |  |  |  |  | 4,766,102 |  |  |  |  |  |
Swaps Yen-US Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset | ¥ |  |  |  |  |  | ¥ 13,000 |  |  |  |  |  |  | ¥ 13,000
Fair value, Asset | 581,948 |  |  |  |  |  | 521,270 |  |  |  |  |  |
Forwards US Dollar-Mexican peso [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset |  |  |  |  |  |  |  | 1,744,000 |  |  |  |  |
Fair value, Asset |  |  |  |  |  |  | 1,600,666 |  |  |  |  |  |
Notional amount, Liabilities |  | 977,000 |  |  |  |  |  |  |  |  |  |  |
Fair value, Liabilities |  | (772,704) |  |  |  |  |  |  |  |  |  |  |
Forwards US Dollar - Brazilian real [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset |  | 150,000 |  |  |  |  |  | 100,000 |  |  |  |  |
Fair value, Asset | 126,287 |  |  |  |  |  | 44,280 |  |  |  |  |  |
Swaps Swiss Franc-US Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset | SFr |  |  |  |  |  |  |  |  |  |  | SFr 475 |  |
Fair value, Asset |  |  |  |  |  |  | 178,710 |  |  |  |  |  |
Swaps Euro-Brazilianreal [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset | R$ |  |  | R$ 300 |  |  |  |  |  | R$ 450 |  |  |  |
Fair value, Asset | 1,080,552 |  |  |  |  |  | 359,671 |  |  |  |  |  |
Interest rate swaps in Mexican peso [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset |  |  |  |  |  |  | 200,000 |  |  |  |  |  |
Fair value, Asset |  |  |  |  |  |  | 916 |  |  |  |  |  |
Forwards Brazilian Real - US Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset | R$ |  |  | R$ 2,823 |  |  |  |  |  |  |  |  |  |
Fair value, Asset | 1,107,630 |  |  |  |  |  |  |  |  |  |  |  |
Forwards Euro- Brazilian real [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset | € |  |  |  | € 150,000 |  |  |  |  |  | € 400,000 |  |  |
Fair value, Asset | 123,005 |  |  |  |  |  |  |  |  | 330,427 |  |  |
Forwards US Dollar - Swiss franc [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset | SFr |  |  |  |  |  |  |  |  |  |  | SFr 75 |  |
Fair value, Asset |  |  |  |  |  |  | 121,981 |  |  |  |  |  |
Forwards Euro-US Dollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Asset | € |  |  |  | 710,000 |  |  |  |  |  | 204,000 |  |  |
Fair value, Asset | 209,295 |  |  |  |  |  |  |  |  | 113,361 |  |  |
Notional amount, Liabilities | € |  |  |  | 950,000 |  |  |  |  |  |  |  |  |
Fair value, Liabilities | (333,586) |  |  |  |  |  |  |  |  |  |  |  |
Swaps Dollar- Euro [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Liabilities |  | $ 2,025,000 |  |  |  |  |  | $ 2,092,000 |  |  |  |  |
Fair value, Liabilities | (5,114,863) |  |  |  |  |  | (8,340,970) |  |  |  |  |  |
Swaps Pound sterling-Euro [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Liabilities | £ |  |  |  |  | £ 740 |  |  |  |  |  |  | £ 740 |
Fair value, Liabilities | (4,027,312) |  |  |  |  |  | (3,376,091) |  |  |  |  |  |
Swap Pound sterling-USDollar [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Liabilities | £ |  |  |  |  | £ 2,010 |  |  |  |  |  |  | £ 2,010 |
Fair value, Liabilities | (5,836,607) |  |  |  |  |  | (1,676,636) |  |  |  |  |  |
Call spread option [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Liabilities | € |  |  |  |  |  |  |  |  |  | 750,000 |  |  |
Fair value, Liabilities |  |  |  |  |  |  | (48,422) |  |  |  |  |  |
Put option [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Liabilities | € |  |  |  | 374,000 |  |  |  |  |  | 374,000 |  |  |
Fair value, Liabilities | (988,669) |  |  |  |  |  | (482,645) |  |  |  |  |  |
Call spread option [member] |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount, Liabilities | € |  |  |  | € 3,000,000 |  |  |  |  |  | € 3,000,000 |  |  |
Fair value, Liabilities | $ (33,838) |  |  |  |  |  | $ (434,696) |  |  |  |  |  |

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