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Significant Accounting Policies - Additional Information (Detail)
MT in Millions, $ in Millions
 12 Months Ended
Jan. 30, 2023
USD ($)
t
Jan. 25, 2023
shares
Dec. 31, 2022
USD ($)
Employees
MT
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Jan. 24, 2023
USD ($)
Disclosure of significant accounting policies [line items]            
Minimum equity interest for significant influence     20.00%      
Increase decrease in financing obligations connected with leases     $ 296 $ 227 $ 213  
Emissions of Co2 gross | MT     50      
Percentage of Co2 released directly related to production process     60.00%      
Percentage of Co2 released directly related to electric consumption     20.00%      
Percentage of Co2 released through activity of supply and transportation     20.00%      
Loss from catastrophes     $ 1 5 1  
Acquistion Of Subsidiary [Member] | SHTANG Recycle Limited [Member]            
Disclosure of significant accounting policies [line items]            
Proportion of ownership interest in subsidiary 51.00%          
Payment to acquire interest in subsidiaries $ 13          
Aggregate Processing Capacity Per Annum | t 600,000          
Period For Which License Has Been Rewarded 13 years          
Tender Offer Report Filed For Acquiring Shares [Member] | CEMEX Asian South East Corporation [Member]            
Disclosure of significant accounting policies [line items]            
Date of commencement of offer   Feb. 16, 2023        
Period of validiy of the offer   20 days        
Executive Variable Compensation [Member]            
Disclosure of significant accounting policies [line items]            
Precease of decrease in annual executive variable compensation     10.00%      
Precease of increase in annual executive variable compensation     10.00%      
Number of employees | Employees     4,400      
Two Thousand and Twenty Year Baseline [Member]            
Disclosure of significant accounting policies [line items]            
Percentage reduction of Co2 emissions     25.00%      
Percentage decrease in transportation emissions     30.00%      
Percentage decrease of scope 3 emissions per ton of purchased fuels     40.00%      
Percentage decrease of absolute scope 3 emissions from the use of traded fuels     42.00%      
Scope Three [Member]            
Disclosure of significant accounting policies [line items]            
Percentage reduction of Co2 emissions     0.00%      
Altantic Minerals [Member] | Definitive Agreement For The Purhcase Of Assets [Member]            
Disclosure of significant accounting policies [line items]            
Business combination aggegate consideration           $ 75
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      
Percentage of Co2 released     5.00%      
Bottom of range [member] | Tender Offer Report Filed For Acquiring Shares [Member] | CEMEX Asian South East Corporation [Member]            
Disclosure of significant accounting policies [line items]            
Number of shares to be acquired pursuant to offer | shares   1        
Bottom of range [member] | Scope One [Member]            
Disclosure of significant accounting policies [line items]            
Percentage reduction of Co2 emissions     35.00%      
Bottom of range [member] | Scope Two [Member]            
Disclosure of significant accounting policies [line items]            
Percentage reduction of Co2 emissions     58.00%      
Top of range [member]            
Disclosure of significant accounting policies [line items]            
Useful life of intangible asset     20 years      
Percentage of Co2 released     7.00%      
Top of range [member] | Tender Offer Report Filed For Acquiring Shares [Member] | CEMEX Asian South East Corporation [Member]            
Disclosure of significant accounting policies [line items]            
Number of shares to be acquired pursuant to offer | shares   1,614,000,000        
Top of range [member] | Scope One [Member]            
Disclosure of significant accounting policies [line items]            
Percentage reduction of Co2 emissions     47.00%      
Top of range [member] | Scope Two [Member]            
Disclosure of significant accounting policies [line items]            
Percentage reduction of Co2 emissions     65.00%      
Mobile equipment [member]            
Disclosure of significant accounting policies [line items]            
Carrying amount of assets acquired through capital lease     $ 296 $ 227 $ 213