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Consolidated Statements of Common Stockholders' Equity (FirstEnergy Solutions Corp.) - USD ($) $ in Millions | Total | Common Stock | Accumulated Other Comprehensive Income | Retained Earnings (Accumulated Deficit) | FES | FES Common Stock | FES Accumulated Other Comprehensive Income | FES Retained Earnings (Accumulated Deficit)
--- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance, Shares at Dec. 31, 2013 |  | 418,628,559 |  |  |  | 7 |  |
Beginning Balance at Dec. 31, 2013 |  | $ 42 | $ 284 | $ 2,590 |  | $ 3,080 | $ 54 | $ 2,178
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net Income (loss) | $ 299 |  |  |  | $ (244) |  |  | (244)
Amortized loss on derivative hedges, net of income taxes |  |  | (1) |  |  |  | (6) |
Change in unrealized gain on investments, net of income taxes |  |  | 16 |  |  |  | 13 |
Pensions and OPEB, net of income taxes |  |  | (53) |  |  |  | (4) |
Equity contribution from parent |  |  |  |  | 500 | 500 |  |
Stock-based compensation |  |  |  |  |  | 7 |  |
Consolidated tax benefit allocation |  |  |  |  |  | $ 7 |  |
Cash dividends declared on common stock |  |  |  | (604) |  |  |  |
Ending Balance, Shares at Dec. 31, 2014 |  | 421,102,570 |  |  |  | 7 |  |
Ending Balance at Dec. 31, 2014 |  | $ 42 | 246 | 2,285 |  | $ 3,594 | 57 | 1,934
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net Income (loss) | $ 578 |  |  |  | $ 82 |  |  | 82
Amortized loss on derivative hedges, net of income taxes |  |  | 4 |  |  |  | (2) |
Change in unrealized gain on investments, net of income taxes |  |  | (7) |  |  |  | (5) |
Pensions and OPEB, net of income taxes |  |  | (72) |  |  |  | (4) |
Equity contribution from parent |  |  |  |  |  | 0 |  |
Stock-based compensation |  |  |  |  |  | 10 |  |
Consolidated tax benefit allocation |  |  |  |  |  | $ 9 |  |
Cash dividends declared on common stock |  |  |  | (607) |  |  |  | (70)
Ending Balance, Shares at Dec. 31, 2015 | 423,560,397 | 423,560,397 |  |  | 7 | 7 |  |
Ending Balance at Dec. 31, 2015 | $ 12,421 | $ 42 | 171 | 2,256 | $ 5,605 | $ 3,613 | 46 | 1,946
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net Income (loss) | $ (6,177) |  |  |  | (5,455) |  |  | (5,455)
Amortized loss on derivative hedges, net of income taxes |  |  | 5 |  |  |  |  |
Change in unrealized gain on investments, net of income taxes |  |  | 34 |  |  |  | 32 |
Pensions and OPEB, net of income taxes |  |  | (36) |  |  |  | (9) |
Equity contribution from parent |  |  |  |  | $ 0 |  |  |
Inter-company asset transfer |  |  |  |  |  | 28 |  |
Stock-based compensation |  |  |  |  |  | 9 |  |
Consolidated tax benefit allocation |  |  |  |  |  | $ 8 |  |
Cash dividends declared on common stock |  |  |  | (611) |  |  |  |
Ending Balance, Shares at Dec. 31, 2016 | 442,344,218 | 442,344,218 |  |  | 7 | 7 |  |
Ending Balance at Dec. 31, 2016 | $ 6,241 | $ 44 | $ 174 | $ (4,532) | $ 218 | $ 3,658 | $ 69 | $ (3,509)

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