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Bank Loans and Notes Payable - Activity (Details) € in Millions, $ in Millions |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 7 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 18, 2020 USD ($) | Feb. 12, 2020 USD ($) | Jan. 22, 2020 USD ($) | Jan. 16, 2020 USD ($) | Mar. 14, 2016 MXN ($) | May 31, 2021 EUR (€) | Sep. 30, 2021 MXN ($) | Jun. 30, 2020 MXN ($) | Dec. 31, 2021 MXN ($) | Dec. 31, 2021 MXN ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2021 USD ($) | Apr. 30, 2021 EUR (€) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 MXN ($) | Mar. 14, 2016 EUR (€)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings |  |  |  |  |  |  |  |  | $ 188,582,000,000 | $ 188,582,000,000 |  | $ 184,196,000,000 |  |  |  |  |  |
Exchange differences (loss) income on the translation of foreign operations and equity method accounted investees |  |  |  |  |  |  |  |  |  | (8,307,000,000) | $ (405) | 489,000,000 | $ (12,556,000,000) |  |  |  |  |
Repayment of borrowings | $ 500 |  | $ 900 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gains (losses) on hedges of net investments in foreign operations, net of tax |  |  |  |  |  |  |  |  | 840,000,000 | 350,000,000 | $ 17 | 1,060,000,000 | 991,000,000 |  |  |  |  |
Mexican peso |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit contracts |  |  |  |  |  |  |  |  |  |  |  | $ 15,650,000,000 | $ 9,400,000,000 |  |  |  |  |
Mexican peso | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 8.39% |  |  |  |  |
Mexican peso | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 7.91% |  |  |  |  |
Mexican peso | Weighted average [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  | 6.04% |  |  |  |  |  |
Argentine peso |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit contracts |  |  |  |  |  |  |  |  |  | 711,000,000 |  |  |  |  |  |  |  |
Uruguayan peso |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit contracts |  |  |  |  |  |  |  |  |  | 759,000,000 |  |  |  |  |  |  |  |
Uruguay, Colombia And Argentina |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit contracts |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,670,000,000 |  |  |  |  |
Argentina And Colombia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit contracts |  |  |  |  |  |  |  |  |  |  |  | $ 1,184,000,000 |  |  |  |  |  |
1.75% Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1,000
Borrowings Term |  |  |  |  | 7 years |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.75%
Basis points over the relevant benchmark |  |  |  |  | 155 |  |  |  |  |  |  |  |  |  |  |  |  |
Total yield percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.824%
Repayment of borrowings | € |  |  |  |  |  | € 1,042 |  |  |  |  |  |  |  |  |  |  |  |
Gains (losses) on hedges of net investments in foreign operations, net of tax |  |  |  |  | $ 232,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
3.500% Senior Unsecured Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  | $ 300 |  | $ 1,500 |  |  |  |  |  |  |  |  |  |  |  | $ 700 |  |
Fixed interest rate |  | 3.50% |  | 3.50% |  |  |  |  |  |  |  |  |  |  |  | 3.50% |  |
Basis points over the relevant benchmark |  | 137.5 |  | 130 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total yield percentage |  | 3.577% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of implicit weighted performance |  |  |  |  |  |  |  | $ 3.358 |  |  |  |  |  |  |  |  |  |
Borrowings |  | $ 1,800 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gains (losses) on hedges of net investments in foreign operations, net of tax |  |  |  |  |  |  |  |  |  | 722,000,000 |  |  |  |  |  |  |  |
7.36% Debt maturing on 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 6,965,000,000 | $ 6,965,000,000 |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 7.36% | 7.36% |  |  |  | 7.36% |  |  |  |
5.46% Debt Bonds Maturing on 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 7,500,000,000 | $ 7,500,000,000 |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 5.46% | 5.46% |  |  |  | 5.46% |  |  |  |
2.75% Senior Notes Maturing 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,250 |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 2.75% | 2.75% |  |  |  | 2.75% |  |  |  |
Debt Certificates Maturing on 2033 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |
Borrowings | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 500 |  |  |
Debt Certificates Maturing on 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |
Borrowings | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 700 |  |  |
5.25% Senior Notes Maturing On November 26, 2045 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600 |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 5.25% | 5.25% |  |  |  | 5.25% |  |  |  |
1.85% Senior Notes Maturing 2032 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 705 |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 1.85% | 1.85% |  |  |  | 1.85% |  |  |  |
Variable Rate Notes Maturing 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 1,500,000,000 | $ 1,500,000,000 |  |  |  |  |  |  |  |
Basis points over the relevant benchmark |  |  |  |  |  |  |  |  |  | 0.25 | 0.25 |  |  |  |  |  |  |
7.87% debt bonds maturing on 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 8,500,000,000 | $ 8,500,000,000 |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 7.87% | 7.87% |  |  |  | 7.87% |  |  |  |
Seven Point Three Five Percentage Debt Bonds Maturing On Two Thousand Twenty Eight |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 3,000,000,000 | $ 3,000,000,000 |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 7.35% | 7.35% |  |  |  | 7.35% |  |  |  |
T I I E Plus Zero Point Zero Eight Percentage Debt Bonds Maturing On Two Thousand Twenty Five |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 1,727,000,000 | $ 1,727,000,000 |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 0.08% | 0.08% |  |  |  | 0.08% |  |  |  |
TIIE Plus Zero Point Zero Five Percentage Debt Bonds Maturing On 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 2,435,000,000 | $ 2,435,000,000 |  |  |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  | 0.05% | 0.05% |  |  |  | 0.05% |  |  |  |
Short term Bank loans | Mexican peso |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,000,000,000 |
First Bonds Linked Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  | $ 9,400,000,000 |  |  |  |  |  |  |  |  |  |  |
Prepaid bilateral loans with maturity of February 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of borrowings |  |  |  |  |  |  | 3,760,000,000 |  |  |  |  |  |  |  |  |  |  |
Prepaid bilateral loans with maturity of August 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of borrowings |  |  |  |  |  |  | $ 5,640,000,000 |  |  |  |  |  |  |  |  |  |  |

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