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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%