Post-Employment and Other Non-current Employee Benefits - Summary of Assumptions, Amounts of Benefits Expected to be Paid (Detail) $ in Millions	Dec. 31, 2020 MXN ($)
Pension and Retirement Plans
Disclosure of defined benefit plans [line items]
2021	$ 305
2022	173
2023	226
2024	247
2025	289
2026 to 2030	1,854
Seniority Premiums
Disclosure of defined benefit plans [line items]
2021	66
2022	59
2023	61
2024	63
2025	67
2026 to 2030	$ 176

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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No definition available.

+ Details

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- Definition

Defined benefit plan expected future benefit payments in year five

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No definition available.

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- Definition

Defined benefit plan expected future benefit payments year four

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No definition available.

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- Definition

Defined benefit plan expected future benefit payments year three

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No definition available.

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- Definition

Defined benefit plan expected future benefit payments year two

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No definition available.

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- Definition

Defined benefit plan expected future benefit Payments five fiscal years thereafter

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No definition available.

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- Definition

Defined benefit plan expected future benefit payments next twelve months

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No definition available.

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