v3.26.1
GOODWILL AND INTANGIBLE ASSETS (Changes in Carrying Amount of Goodwill) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Goodwill [Line Items]    
Goodwill $ 7,030.1 $ 6,789.5
Goodwill acquired, excluding measurement period adjustments 263.1  
Foreign currency impact and other adjustments (22.5)  
Goodwill Impairment, Cumulative 648.5 648.5
Diagnostics    
Goodwill [Line Items]    
Goodwill 5,693.8 5,434.8
Goodwill acquired, excluding measurement period adjustments 263.1  
Foreign currency impact and other adjustments (4.1)  
Biopharma Laboratory Services    
Goodwill [Line Items]    
Goodwill 1,336.3 $ 1,354.7
Goodwill acquired, excluding measurement period adjustments 0.0  
Foreign currency impact and other adjustments $ (18.4)