Employee Benefits - Summary of Increase (Decrease) Would Have Resulted in the DBO Pension and Other Benefits (Detail) $ in Thousands	Dec. 31, 2022 MXN ($)
-100 [member] \| Discount rate [member]
Disclosure of sensitivity analysis for actuarial assumptions [line items]
DBO pension and other benefits	$ 25,334,948
-100 [member] \| Health care cost trend rate [member]
Disclosure of sensitivity analysis for actuarial assumptions [line items]
DBO pension and other benefits	(388,889)
+100 [member] \| Discount rate [member]
Disclosure of sensitivity analysis for actuarial assumptions [line items]
DBO pension and other benefits	(22,163,575)
+100 [member] \| Health care cost trend rate [member]
Disclosure of sensitivity analysis for actuarial assumptions [line items]
DBO pension and other benefits	$ 444,735

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

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- Definition

The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 145
-Subparagraph a
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-URIDate 2022-03-24

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- Definition

The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]]

+ References

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