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Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2016
Statement of Comprehensive Income [Abstract] |
Schedule of Accumulated Other Comprehensive Income | The changes in AOCI for the years ended December 31, 2016, 2015 and 2014 for FES are shown in the following table:
FES |  |  |  |  |  |  |  |
|  | Gains & Losses on Cash Flow Hedges |  | Unrealized Gains on AFS Securities |  | Defined Benefit Pension & OPEB Plans |  | Total
|  | (In millions)
AOCI Balance, January 1, 2014 |  | $ | (1 | ) |  | $ | 8 |  |  | $ | 47 |  |  | $ | 54 |
Other comprehensive income before reclassifications |  | — |  |  | 80 |  |  | 13 |  |  | 93 |
Amounts reclassified from AOCI |  | (10 | ) |  | (59 | ) |  | (19 | ) |  | (88 | )
Other comprehensive income (loss) |  | (10 | ) |  | 21 |  |  | (6 | ) |  | 5 |
Income tax (benefits) on other comprehensive income (loss) |  | (4 | ) |  | 8 |  |  | (2 | ) |  | 2 |
Other comprehensive income (loss), net of tax |  | (6 | ) |  | 13 |  |  | (4 | ) |  | 3 |
AOCI Balance, December 31, 2014 |  | $ | (7 | ) |  | $ | 21 |  |  | $ | 43 |  |  | $ | 57 |
Other comprehensive income before reclassifications |  | — |  |  | 15 |  |  | 10 |  |  | 25 |
Amounts reclassified from AOCI |  | (3 | ) |  | (24 | ) |  | (16 | ) |  | (43 | )
Other comprehensive loss |  | (3 | ) |  | (9 | ) |  | (6 | ) |  | (18 | )
Income tax benefits on other comprehensive loss |  | (1 | ) |  | (4 | ) |  | (2 | ) |  | (7 | )
Other comprehensive loss, net of tax |  | (2 | ) |  | (5 | ) |  | (4 | ) |  | (11 | )
AOCI Balance, December 31, 2015 |  | $ | (9 | ) |  | $ | 16 |  |  | $ | 39 |  |  | $ | 46 |
Other comprehensive income before reclassifications |  | — |  |  | 100 |  |  | — |  |  | 100 |
Amounts reclassified from AOCI |  | — |  |  | (48 | ) |  | (14 | ) |  | (62 | )
Other comprehensive income (loss) |  | — |  |  | 52 |  |  | (14 | ) |  | 38 |
Income tax (benefits) on other comprehensive income (loss) |  | — |  |  | 20 |  |  | (5 | ) |  | 15 |
Other comprehensive income (loss), net of tax |  | — |  |  | 32 |  |  | (9 | ) |  | 23 |
AOCI Balance, December 31, 2016 |  | $ | (9 | ) |  | $ | 48 |  |  | $ | 30 |  |  | $ | 69 |
The changes in AOCI for the years ended December 31, 2016, 2015 and 2014 for FirstEnergy are shown in the following table:
FirstEnergy |  |  |  |  |  |  |  |
|  | Gains & Losses on Cash Flow Hedges |  | Unrealized Gains on AFS Securities |  | Defined Benefit Pension & OPEB Plans |  | Total
|  | (In millions)
AOCI Balance, January 1, 2014 |  | $ | (36 | ) |  | $ | 9 |  |  | $ | 311 |  |  | $ | 284 |
Other comprehensive income before reclassifications |  | — |  |  | 89 |  |  | 92 |  |  | 181 |
Amounts reclassified from AOCI |  | (2 | ) |  | (63 | ) |  | (168 | ) |  | (233 | )
Other comprehensive income (loss) |  | (2 | ) |  | 26 |  |  | (76 | ) |  | (52 | )
Income tax (benefits) on other comprehensive income (loss) |  | (1 | ) |  | 10 |  |  | (23 | ) |  | (14 | )
Other comprehensive income (loss), net of tax |  | (1 | ) |  | 16 |  |  | (53 | ) |  | (38 | )
AOCI Balance, December 31, 2014 |  | $ | (37 | ) |  | $ | 25 |  |  | $ | 258 |  |  | $ | 246 |
Other comprehensive income before reclassifications |  | — |  |  | 14 |  |  | 10 |  |  | 24 |
Amounts reclassified from AOCI |  | 5 |  |  | (25 | ) |  | (126 | ) |  | (146 | )
Other comprehensive income (loss) |  | 5 |  |  | (11 | ) |  | (116 | ) |  | (122 | )
Income tax (benefits) on other comprehensive income (loss) |  | 1 |  |  | (4 | ) |  | (44 | ) |  | (47 | )
Other comprehensive income (loss), net of tax |  | 4 |  |  | (7 | ) |  | (72 | ) |  | (75 | )
AOCI Balance, December 31, 2015 |  | $ | (33 | ) |  | $ | 18 |  |  | $ | 186 |  |  | $ | 171 |
Other comprehensive income before reclassifications |  | — |  |  | 106 |  |  | 13 |  |  | 119 |
Amounts reclassified from AOCI |  | 8 |  |  | (51 | ) |  | (72 | ) |  | (115 | )
Other comprehensive income (loss) |  | 8 |  |  | 55 |  |  | (59 | ) |  | 4 |
Income tax (benefits) on other comprehensive income (loss) |  | 3 |  |  | 21 |  |  | (23 | ) |  | 1 |
Other comprehensive income (loss), net of tax |  | 5 |  |  | 34 |  |  | (36 | ) |  | 3 |
AOCI Balance, December 31, 2016 |  | $ | (28 | ) |  | $ | 52 |  |  | $ | 150 |  |  | $ | 174 |
Reclassification out of Accumulated Other Comprehensive Income | The following amounts were reclassified from AOCI for FirstEnergy in the years ended December 31, 2016, 2015 and 2014:
FirstEnergy |  | Year Ended December 31 |  | Affected Line Item in Consolidated Statements of Income (Loss)
Reclassifications from AOCI (2) |  | 2016 |  | 2015 |  | 2014 |
|  | (In millions) |  |
Gains & losses on cash flow hedges |  |  |  |  |  |  |  |
Commodity contracts |  | $ | — |  |  | $ | (3 | ) |  | $ | (10 | ) |  | Other operating expenses
Long-term debt |  | 8 |  |  | 8 |  |  | 8 |  |  | Interest expense
|  | 8 |  |  | 5 |  |  | (2 | ) |  | Total before taxes
|  | (3 | ) |  | (1 | ) |  | 1 |  |  | Income taxes (benefits)
|  | $ | 5 |  |  | $ | 4 |  |  | $ | (1 | ) |  | Net of tax
Unrealized gains on AFS securities |  |  |  |  |  |  |  |
Realized gains on sales of securities |  | $ | (51 | ) |  | $ | (25 | ) |  | $ | (63 | ) |  | Investment income (loss)
|  | 19 |  |  | 9 |  |  | 24 |  |  | Income taxes (benefits)
|  | $ | (32 | ) |  | $ | (16 | ) |  | $ | (39 | ) |  | Net of tax
Defined benefit pension and OPEB plans |  |  |  |  |  |  |  |
Prior-service costs |  | $ | (72 | ) |  | $ | (126 | ) |  | $ | (168 | ) |  | (1)
|  | 27 |  |  | 49 |  |  | 65 |  |  | Income taxes (benefits)
|  | $ | (45 | ) |  | $ | (77 | ) |  | $ | (103 | ) |  | Net of tax
(1) These AOCI components are included in the computation of net periodic pension cost. See Note 4, Pension and Other Postemployment Benefits for additional details.
(2) Parenthesis represent credits to the Consolidated Statements of Income (Loss) from AOCI.
The following amounts were reclassified from AOCI for FES in the years ended December 31, 2016, 2015 and 2014:
FES |  | Year Ended December 31 |  | Affected Line Item in Consolidated Statements of Income (Loss)
Reclassifications from AOCI (2) |  | 2016 |  | 2015 |  | 2014 |
|  | (In millions) |  |
Gains & losses on cash flow hedges |  |  |  |  |  |  |  |
Commodity contracts |  | $ | — |  |  | $ | (3 | ) |  | $ | (10 | ) |  | Other operating expenses
|  | — |  |  | 1 |  |  | 4 |  |  | Income taxes (benefits)
|  | $ | — |  |  | $ | (2 | ) |  | $ | (6 | ) |  | Net of tax
Unrealized gains on AFS securities |  |  |  |  |  |  |  |
Realized gains on sales of securities |  | $ | (48 | ) |  | $ | (24 | ) |  | $ | (59 | ) |  | Investment income (loss)
|  | 18 |  |  | 9 |  |  | 22 |  |  | Income taxes (benefits)
|  | $ | (30 | ) |  | $ | (15 | ) |  | $ | (37 | ) |  | Net of tax
Defined benefit pension and OPEB plans |  |  |  |  |  |  |  |
Prior-service costs |  | $ | (14 | ) |  | $ | (16 | ) |  | $ | (19 | ) |  | (1)
|  | 5 |  |  | 6 |  |  | 7 |  |  | Income taxes (benefits)
|  | $ | (9 | ) |  | $ | (10 | ) |  | $ | (12 | ) |  | Net of tax
(1) These AOCI components are included in the computation of net periodic pension cost. See Note 4, Pension and Other Postemployment Benefits for additional details.
(2) Parenthesis represent credits to the Consolidated Statements of Income (Loss) from AOCI.

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