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Consolidated Statements of Comprehensive Income (FirstEnergy Corp.) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Statement of Comprehensive Income [Abstract] |  |
Net income (loss) | $ 205 | $ 328
OTHER COMPREHENSIVE INCOME: |  |
Pension and OPEB prior service costs | (18) | (18)
Amortized losses on derivative hedges | 3 | 2
Change in unrealized gains on available-for-sale securities | 16 | 28
Other comprehensive income | 1 | 12
Income taxes on other comprehensive income | 0 | 4
Other comprehensive income, net of tax | 1 | 8
COMPREHENSIVE INCOME | $ 206 | $ 336

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