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Goodwill
 3 Months Ended
Mar. 31, 2023
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, 2022$4,236.1 $1,136.5 $5,372.6 
Goodwill acquired from 2023 acquisitions— 22.4 22.4 
Purchase price allocation adjustments and other22.9 — 22.9 
Foreign currency translation adjustments6.3 6.3 12.6 
Balance at March 31, 2023$4,265.3 $1,165.2 $5,430.5