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Bank Loans and Notes Payables - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 MXN ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2020 USD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |
Fixed interest rate | 5.46% |  |  | 5.46%
Repayment of bonds |  | $ 500 |  |
Mexico |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Proceeds from bank loan | $ 15,650 |  | $ 9,400 |
Uruguay Colombia and Argentina |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Proceeds from bank loan | $ 1,184 |  | $ 1,670 |
Top of Range |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Fixed interest rate | 6.04% |  | 8.39% | 6.04%
Bottom of Range |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Fixed interest rate |  |  | 7.91% |
Argentine peso |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount | $ 711 |  |  |
Uruguayan peso |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount | 759 |  |  |
8.27% Debt Bonds, Maturing in 2021 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount | $ 2,500 |  |  |
Maturity date | 2021 | 2021 |  |
Fixed interest rate | 8.27% |  |  | 8.27%
5.46% Debt Bonds Maturing in 2023 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount | $ 7,500 |  |  |
Maturity date | 2023 | 2023 |  |
TIIE + 0.25% Debt Bonds Maturing on 2022 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount | $ 1,500 |  |  |
Maturity date | 2022 | 2022 |  |
Floating interest rate | 0.25% |  |  | 0.25%
7.87% Senior Notes, Maturity Date on Nov. 26, 2027 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount | $ 8,500 |  |  |
Maturity date | 2027 | 2027 |  |
Fixed interest rate | 7.87% |  |  | 7.87%
TIIE + 0.08% Debt Bonds Maturing on 2025 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount | $ 1,727 |  |  |
Floating interest rate | 0.08% |  |  | 0.08%
7. 35 Debt Bonds Maturing in 2028 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount | $ 3,000 |  |  |
Fixed interest rate | 7.35% |  |  | 7.35%
2.75 Senior Notes, Maturity Date on January 22, 2030 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount |  |  |  | $ 1,250
Fixed interest rate | 2.75% |  |  | 2.75%
1.85% Senior Notes, Maturity Date on September 1, 2032 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount |  |  |  | $ 705
Fixed interest rate | 1.85% |  |  | 1.85%
5.25% Senior Notes, Maturity Date on Nov. 26, 2043 |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |
Notional amount |  |  |  | $ 600
Maturity date | November 26, 2043 | November 26, 2043 |  |
Fixed interest rate | 5.25% |  |  | 5.25%

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