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Goodwill (Tables)
3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill The following presents our goodwill balance allocated by segment as of March 31, 2021:
(in millions)Gas Distribution OperationsElectric OperationsCorporate and OtherTotal
Goodwill$1,485.9 $— $— $1,485.9