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Goodwill
6 Months Ended
Jun. 30, 2021
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, 2020$3,050.3 $1,174.6 $4,224.9 
Goodwill acquired916.9 5.9 922.8 
Purchase price allocation adjustments and other1.9  1.9 
Foreign currency translation adjustments(6.1)(3.7)(9.8)
Balance at June 30, 2021$3,963.0 $1,176.8 $5,139.8