Consolidated Statements of Income and Comprehensive Income (FirstEnergy Solutions Corp.) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
REVENUES:
Electric sales	$ 5,178		$ 5,441		$ 5,473
Total revenues	15,049	[1]	14,892	[1]	15,255	[1]
OPERATING EXPENSES:
Fuel	2,280		2,496		2,471
Purchased power	4,716		3,963		4,246
Other operating expenses	3,962		3,593		3,760
Pension and OPEB mark-to-market adjustment	835		(256)		609
Provision for depreciation	1,220		1,202		1,119
General taxes	962		978		984
Total operating expenses	13,987		13,310		13,121
OPERATING INCOME (LOSS)	1,062		1,582		2,134
OTHER INCOME (EXPENSE):
Loss on debt redemptions	(8)		(132)		0
Investment income	72		33		77
Interest expense	(1,073)		(1,016)		(1,001)
Capitalized financing costs	118		103		90
Total other expense	(891)		(1,012)		(834)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	171		570		1,300
INCOME TAXES (BENEFITS)	(42)		195		545
INCOME FROM CONTINUING OPERATIONS	213		375		755
Discontinued operations (net of income taxes of $70, $8 and $8, respectively) (Note 19)	86		17		16
NET INCOME (LOSS)	299		392		771
STATEMENTS OF COMPREHENSIVE INCOME
NET INCOME	299		392		771
OTHER COMPREHENSIVE INCOME (LOSS):
Pension and OPEB prior service costs	(76)		(160)		(115)
Amortized loss (gain) on derivative hedges	(2)		3		1
Change in unrealized gain on available-for-sale securities	26		(10)		(6)
Other comprehensive income (loss)	(52)		(167)		(120)
Income taxes (benefits) on other comprehensive income (loss)	(14)		(66)		(79)
Other comprehensive loss, net of tax	(38)		(101)		(41)
COMPREHENSIVE INCOME (LOSS)	261		291		730
Excise tax collections included in Revenue	420		458		484
FES
REVENUES:
Other	169		143		126
Total revenues	6,144	[2]	6,173	[2]	5,894	[2]
OPERATING EXPENSES:
Fuel	1,253		1,262		1,287
Other operating expenses	1,635		1,487		1,356
Pension and OPEB mark-to-market adjustment	297		(81)		166
Provision for depreciation	319		306		272
General taxes	128		138		136
Total operating expenses	6,674		5,931		5,555
OPERATING INCOME (LOSS)	(530)		242		339
OTHER INCOME (EXPENSE):
Loss on debt redemptions	(6)		(103)		0
Investment income	61		16		66
Miscellaneous income	6		28		35
Capitalized financing costs	34		39		37
Total other expense	(58)		(190)		(63)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(588)		52		276
INCOME TAXES (BENEFITS)	(228)		6		103
INCOME FROM CONTINUING OPERATIONS	(360)		46		173
Discontinued operations (net of income taxes of $70, $8 and $8, respectively) (Note 19)	116		14		14
NET INCOME (LOSS)	(244)		60		187
STATEMENTS OF COMPREHENSIVE INCOME
NET INCOME	(244)		60		187
OTHER COMPREHENSIVE INCOME (LOSS):
Pension and OPEB prior service costs	(6)		(15)		6
Amortized loss (gain) on derivative hedges	(10)		(6)		(9)
Change in unrealized gain on available-for-sale securities	21		(8)		(5)
Other comprehensive income (loss)	5		(29)		(8)
Income taxes (benefits) on other comprehensive income (loss)	2		(11)		(4)
Other comprehensive loss, net of tax	3		(18)		(4)
COMPREHENSIVE INCOME (LOSS)	(241)		42		183
Excise tax collections included in Revenue	69		78		77
FES | Affiliates
REVENUES:
Electric sales	861		652		515
OPERATING EXPENSES:
Purchased power	271		486		451
OTHER INCOME (EXPENSE):
Interest expense	(7)		(10)		(10)
FES | Non-Affiliates
REVENUES:
Electric sales	5,114		5,378		5,253
OPERATING EXPENSES:
Purchased power	2,771		2,333		1,887
OTHER INCOME (EXPENSE):
Interest expense	$ (146)		$ (160)		$ (191)

[1] Includes excise tax collections of $420 million, $458 million and $484 million in 2014, 2013 and 2012, respectively.

[2] Includes excise tax collections of $69 million, $78 million and $77 million in 2014, 2013 and 2012, respectively.