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Material Accounting Policies - Additional Information (Detail) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of significant accounting policies [line items] |  |  |  |
Average effective tax rate | (6.80%) | (91.00%) | (29.50%) |
With Effect From First Of January Two Thousand And Twenty Four [Member] | Pillar Two Tax Reform [Member] |  |  |  |
Disclosure of significant accounting policies [line items] |  |  |  |
Minimum alternate tax rate percentage |  |  |  | 15.00%
Minimum annual revenue for the applicability of minimum alternate tax rate |  |  |  | € 750
CEMEX Espana SA [member] | With Effect From First Of January Two Thousand And Twenty Four [Member] | Pillar Two Tax Reform [Member] |  |  |  |
Disclosure of significant accounting policies [line items] |  |  |  |
Minimum alternate tax rate percentage |  |  |  | 15.00%
Computer software [member] |  |  |  |
Disclosure of significant accounting policies [line items] |  |  |  |
Useful life of intangible asset | 5 years |  |  |
Extraction rights [member] |  |  |  |
Disclosure of significant accounting policies [line items] |  |  |  |
Useful life of intangible asset | 83 years |  |  |
Bottom of range [member] |  |  |  |
Disclosure of significant accounting policies [line items] |  |  |  |
Useful life of intangible asset | 3 years |  |  |
Top of range [member] |  |  |  |
Disclosure of significant accounting policies [line items] |  |  |  |
Useful life of intangible asset | 20 years |  |  |
Top of range [member] | CEMEX Espana SA [member] | With Effect From First Of January Two Thousand And Twenty Four [Member] | Pillar Two Tax Reform [Member] |  |  |  |
Disclosure of significant accounting policies [line items] |  |  |  |
Average effective tax rate |  |  |  | 15.00%

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- Definition The tax expense (income) divided by the accounting profit. [Refer: Accounting profit] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2024-03-27 + Details
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