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INTANGIBLE ASSETS (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Future Amortization
As of December 31, 2020, intangible assets classified in Other Deferred Charges on FirstEnergy’s Consolidated Balance Sheets include the following:
Intangible AssetsAmortization Expense
ActualEstimated
(In millions)GrossAccumulated AmortizationNet202020212022202320242025Thereafter
NUG contracts(1)
$124 $51 $73 $$$$$$$48 
Coal contracts(2)
102 102 — — — — — — — 
$226 $153 $73 $$$$$$$48 
(1)NUG contracts are subject to regulatory accounting and their amortization does not impact earnings.
(2)    The coal contracts were recorded with a regulatory offset and their amortization does not impact earnings.