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Goodwill
 6 Months Ended
Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
The changes in the carrying amounts of goodwill by segment were as follows:
EIGEMGTotal
(In millions)
Balance at December 31, 2024$4,424.9 $2,131.0 $6,555.9 
Goodwill acquired from 2025 acquisitions55.0 — 55.0 
Purchase price allocation adjustments and other4.5 — 4.5 
Foreign currency translation adjustments72.4 36.1 108.5 
Balance at June 30, 2025$4,556.8 $2,167.1 $6,723.9