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EARNINGS PER SHARE
 3 Months Ended
Mar. 31, 2025
Earnings Per Share [Abstract]  
EARNINGS PER SHARE EARNINGS PER SHARE
Basic earnings per share (Basic EPS) is computed by dividing Net earnings attributable to Labcorp Holdings Inc. by the weighted-average number of common shares outstanding. Diluted earnings per common share (Diluted EPS) is computed by dividing Net earnings attributable to Labcorp Holdings Inc., and if applicable, including the impact of dilutive adjustments by the weighted-average number of common shares outstanding plus potentially dilutive shares, as if they had been issued at the earlier of the date of issuance or the beginning of the period presented. Potentially dilutive common shares result primarily from the Company’s outstanding stock options, restricted stock units, and performance share awards.
The following represents a reconciliation of Basic EPS to Diluted EPS:
Three Months Ended March 31,
 20252024
Basic EPSDilutive EffectDiluted EPSBasic EPSDilutive EffectDiluted EPS
Net earnings attributable to LHI$212.8 $212.8 $228.0 $228.0 
Weighted-average common shares outstanding83.6 0.7 84.3 84.1 0.6 84.7
Per common share amount$2.54 $2.52 $2.71 $2.69 
The following table summarizes the potential common shares not included in the computation of Diluted EPS because their impact would have been antidilutive:
Three Months Ended March 31,
 20252024
Employee stock options and awards0.3 0.3