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Goodwill and Intangible Assets, Net - Additional Information (Detail) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Feb. 28, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about intangible assets [line items]          
Risk free rate   4.79% 3.58% 1.82% 2.20%
Increase in pre-tax discount rate   1.00%      
Decrease in long-term growth rate   1.00%      
Weighted average Operating EBITDA multiple   10.9 11.3 11.5  
Impairment of finite lived intangible assets   $ 7      
Market risk premium percentage     1.70% 5.80% 5.70%
Percentage reduction in long term growth rate   1.20%      
Stock volatility factor   1.07 1.08 1.12 1.19
Impairment losses of goodwill   $ 0 $ 365    
Weight of Debt   22.50% 27.00%    
Other expenses [member]          
Disclosure of detailed information about intangible assets [line items]          
Impairment losses related to intangible assets       $ 53  
Neoris NV [member]          
Disclosure of detailed information about intangible assets [line items]          
Impairment losses of goodwill       27  
Operating segments [member]          
Disclosure of detailed information about intangible assets [line items]          
Impairment of finite lived intangible assets     $ 365    
Internally Developed Software [member]          
Disclosure of detailed information about intangible assets [line items]          
Impairment losses related to intangible assets       $ 49  
Cemex [Member]          
Disclosure of detailed information about intangible assets [line items]          
Funding cost percentage 4.10% 6.70% 6.70% 4.10%  
Decrease In Weighing Of Debt Percentage       26.90% 34.60%
Cemex [Member] | Operating segments [member]          
Disclosure of detailed information about intangible assets [line items]          
Discount rates       0.10% 0.50%
Top of range [member]          
Disclosure of detailed information about intangible assets [line items]          
Funding cost percentage   6.67%      
Weighted average [member] | Cemex [Member] | Operating segments [member]          
Disclosure of detailed information about intangible assets [line items]          
Discount rates   1.20% 2.00%    
United States [member]          
Disclosure of detailed information about intangible assets [line items]          
Discount rates   10.10% 9.10% 7.20%  
United States [member] | Operating segments [member]          
Disclosure of detailed information about intangible assets [line items]          
Discount rates   1.00%      
Impairment of finite lived intangible assets     $ 273    
Percentage of goodwill   80.00%      
United States [member] | Goodwill [member] | Operating segments [member]          
Disclosure of detailed information about intangible assets [line items]          
Impairment of finite lived intangible assets       $ 440  
United States [member] | Top of range [member]          
Disclosure of detailed information about intangible assets [line items]          
Risk free rate   4.79%      
Mexico [member]          
Disclosure of detailed information about intangible assets [line items]          
Discount rates   11.60% 10.30% 8.40%  
Percentage reduction in long term growth rate   1.00% 1.00% 1.00%  
Spain [member]          
Disclosure of detailed information about intangible assets [line items]          
Discount rates   10.70% 9.40% 7.60%  
Spain [member] | Operating segments [member]          
Disclosure of detailed information about intangible assets [line items]          
Impairment of finite lived intangible assets     $ 92    
Spain [member] | Goodwill [member]          
Disclosure of detailed information about intangible assets [line items]          
Non cash impairment charges       $ 317  
Egypt [member]          
Disclosure of detailed information about intangible assets [line items]          
Percentage reduction in long term growth rate   3.00% 2.85% 2.80%  
UAE [Member] | Goodwill [member]          
Disclosure of detailed information about intangible assets [line items]          
Non cash impairment charges       $ 96  
Israel [member]          
Disclosure of detailed information about intangible assets [line items]          
Percentage reduction in long term growth rate   2.10%