v3.25.2
Cover Page - shares
shares in Millions
 6 Months Ended
Jun. 30, 2025
Jul. 31, 2025
Document Information [Table]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 1-11353  
Entity Registrant Name LABCORP HOLDINGS INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 99-2588107  
Entity Address, Address Line One 358 South Main Street  
Entity Address, City or Town Burlington  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 27215  
City Area Code 336  
Local Phone Number 229-1127  
Title of 12(b) Security Common Stock, $0.10 par value  
Trading Symbol LH  
Security Exchange Name NYSE  
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   83.1
Entity Central Index Key 0000920148  
Amendment Flag false  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q2