v3.25.2
Cover - shares
 6 Months Ended
Jun. 30, 2025
Jul. 23, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-32846  
Entity Registrant Name CRH public limited company  
Entity Tax Identification Number 98-0366809  
Entity Address, Address Line One Stonemason’s Way  
Entity Address, Address Line Two Rathfarnham  
Entity Address, City or Town Dublin  
Entity Address, Postal Zip Code D16 KH51  
Entity Address, Country IE  
Country Region +353  
City Area Code 1  
Local Phone Number 404 1000  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   672,659,283
Amendment Flag false  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0000849395  
Current Fiscal Year End Date --12-31  
Entity Incorporation, State or Country Code L2  
Common stock    
Document Information [Line Items]    
Title of 12(b) Security Ordinary Shares  
Trading Symbol CRH  
Security Exchange Name NYSE  
5.200% Guaranteed Notes due 2029    
Document Information [Line Items]    
Title of 12(b) Security 5.200% Guaranteed Notes due 2029  
Trading Symbol CRH/29  
Security Exchange Name NYSE  
5.125% Guaranteed Notes due 2030    
Document Information [Line Items]    
Title of 12(b) Security 5.125% Guaranteed Notes due 2030  
Trading Symbol CRH/30  
Security Exchange Name NYSE  
6.400% Notes due 2033    
Document Information [Line Items]    
Title of 12(b) Security 6.400% Notes due 2033  
Trading Symbol CRH/33A  
Security Exchange Name NYSE  
5.400% Guaranteed Notes due 2034    
Document Information [Line Items]    
Title of 12(b) Security 5.400% Guaranteed Notes due 2034  
Trading Symbol CRH/34  
Security Exchange Name NYSE  
5.500% Guaranteed Notes due 2035    
Document Information [Line Items]    
Title of 12(b) Security 5.500% Guaranteed Notes due 2035  
Trading Symbol CRH/35  
Security Exchange Name NYSE  
5.875% Guaranteed Notes due 2055    
Document Information [Line Items]    
Title of 12(b) Security 5.875% Guaranteed Notes due 2055  
Trading Symbol CRH/55  
Security Exchange Name NYSE