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Main Subsidiaries - Summary of Main Subsidiaries Interests (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2021
CEMEX Colombia S.A [member]
Disclosure of subsidiaries [line items]
Percentage of interest	99.00%
Cemento Bayano, S.A. [member]
Disclosure of subsidiaries [line items]
Interest held on treasury	0.516%
Percentage of indirectly interest	99.483%
Trinidad Cement Limited [member]
Disclosure of subsidiaries [line items]
Percentage of ownership interest	74.08%
Caribbean Cement Company Limited [member]
Disclosure of subsidiaries [line items]
Percentage of ownership interest	79.04%
Other Subsidiaries [Member]
Disclosure of subsidiaries [line items]
Percentage of equity interest	51.00%
Another Subsidiary [Member]
Disclosure of subsidiaries [line items]
Percentage of ownership interest	4.96%
Percentage of indirectly interest	1.00%
CEMEX Espana SA [member]
Disclosure of subsidiaries [line items]
Percentage of equity interest	49.00%

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- Definition

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- Definition

Percentage of indirectly interest.

+ References

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- Definition

Percentage of ownership interest held on treasury.

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- Definition

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- Definition

Proportion of ownership in indirect interest.

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- Definition

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- Definition

Percentage of ownership interest.

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- Definition

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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No definition available.

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- Details

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