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Goodwill
 9 Months Ended
Sep. 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 acquisitions530.5 — 530.5 
Purchase price allocation adjustments and other4.5 — 4.5 
Foreign currency translation adjustments62.2 32.2 94.4 
Balance at September 30, 2025$5,022.1 $2,163.2 $7,185.3