Consolidated Statements of Operations and Comprehensive Income (Loss) (FirstEnergy Solutions Corp.) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
REVENUES:
Electric sales		$ 937	$ 957	$ 2,010	$ 2,054
Total revenues	[1]	3,401	3,465	7,270	7,362
OPERATING EXPENSES:
Fuel		438	383	819	896
Purchased power		889	989	2,013	2,102
Other operating expenses		964	900	1,882	1,957
Provision for depreciation		334	322	663	641
General taxes		241	242	521	511
Impairment of assets (Note 2)		1,447	16	1,447	16
Total operating expenses		4,376	2,911	7,469	6,214
OPERATING INCOME (LOSS)		(975)	554	(199)	1,148
OTHER INCOME (EXPENSE):
Investment income (loss)		19	(3)	47	14
Interest expense		(289)	(282)	(577)	(561)
Capitalized interest		26	33	51	67
Total other expense		(244)	(252)	(479)	(480)
INCOME (LOSS) BEFORE INCOME TAXES (BENEFITS)		(1,219)	302	(678)	668
INCOME TAXES (BENEFITS)		(130)	115	83	259
NET INCOME (LOSS)		(1,089)	187	(761)	409
STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
NET INCOME (LOSS)		(1,089)	187	(761)	409
OTHER COMPREHENSIVE INCOME (LOSS):
Pension and OPEB prior service costs		(18)	(32)	(36)	(63)
Amortized gains on derivative hedges		2	1	4	2
Change in unrealized gains on available-for-sale securities		35	(14)	63	(10)
Other comprehensive income (loss)		19	(45)	31	(71)
Income taxes (benefits) on other comprehensive income (loss)		7	(17)	11	(27)
Other comprehensive income (loss), net of tax		12	(28)	20	(44)
COMPREHENSIVE INCOME (LOSS)		(1,077)	159	(741)	365
FES
REVENUES:
Other		42	48	87	95
Total revenues		1,102	1,119	2,301	2,496
OPERATING EXPENSES:
Fuel		228	191	393	421
Other operating expenses		369	337	609	750
Provision for depreciation		84	81	167	161
General taxes		19	25	45	54
Impairment of assets (Note 2)		540	16	540	16
Total operating expenses		1,673	1,119	2,646	2,484
OPERATING INCOME (LOSS)		(571)	0	(345)	12
OTHER INCOME (EXPENSE):
Investment income (loss)		19	1	32	14
Miscellaneous income		1	4	3	4
Capitalized interest		8	9	18	18
Total other expense		(10)	(25)	(23)	(42)
INCOME (LOSS) BEFORE INCOME TAXES (BENEFITS)		(581)	(25)	(368)	(30)
INCOME TAXES (BENEFITS)		(143)	(4)	(61)	(6)
NET INCOME (LOSS)		(438)	(21)	(307)	(24)
STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
NET INCOME (LOSS)		(438)	(21)	(307)	(24)
OTHER COMPREHENSIVE INCOME (LOSS):
Pension and OPEB prior service costs		(3)	(4)	(7)	(8)
Amortized gains on derivative hedges		(1)	(1)	(1)	(2)
Change in unrealized gains on available-for-sale securities		33	(12)	56	(9)
Other comprehensive income (loss)		29	(17)	48	(19)
Income taxes (benefits) on other comprehensive income (loss)		12	(6)	19	(7)
Other comprehensive income (loss), net of tax		17	(11)	29	(12)
COMPREHENSIVE INCOME (LOSS)		(421)	(32)	(278)	(36)
FES | Affiliates
REVENUES:
Electric sales		102	157	249	412
OPERATING EXPENSES:
Purchased power		167	77	249	147
OTHER INCOME (EXPENSE):
Interest expense		(1)	(2)	(3)	(4)
FES | Non-Affiliates
REVENUES:
Electric sales		958	914	1,965	1,989
OPERATING EXPENSES:
Purchased power		266	392	643	935
OTHER INCOME (EXPENSE):
Interest expense		$ (37)	$ (37)	$ (73)	$ (74)

[1] Includes excise tax collections of $92 million and $96 million in the three months ended June 30, 2016 and 2015, respectively, and $199 million and $211 million in the six months ended June 30, 2016 and 2015, respectively.