Consolidated Statements of Income and Comprehensive Income (FirstEnergy Solutions Corp.) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
REVENUES:
Electric sales	$ 1,450		$ 1,335
Total revenues	4,189	[1]	3,723	[1]
OPERATING EXPENSES:
Fuel	617		630
Purchased power	1,455		946
Other operating expenses	1,182		882
Provision for depreciation	294		293
General taxes	271		265
Total operating expenses	3,791		3,075
OPERATING INCOME (LOSS)	398		648
OTHER INCOME (EXPENSE):
Loss on debt redemptions	(7)		(117)
Investment income	22		18
Interest expense	(265)		(258)
Capitalized interest	22		15
Total other income (expense)	(228)		(342)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	170		306
INCOME TAXES (BENEFITS)	48		114
INCOME FROM CONTINUING OPERATIONS	122		192
Discontinued operations (net of income taxes of $70 and $2, respectively) (Note 13)	86		4
NET INCOME (LOSS)	208		196
STATEMENTS OF COMPREHENSIVE INCOME
NET INCOME	208		196
OTHER COMPREHENSIVE INCOME (LOSS):
Pension and OPEB prior service costs	(42)		(46)
Amortized loss (gain) on derivative hedges	0		1
Change in unrealized gain on available-for-sale securities	21		5
Other comprehensive income (loss)	(21)		(40)
Income taxes (benefits) on other comprehensive income (loss)	(8)		(16)
Net other comprehensive income (loss)	(13)		(24)
COMPREHENSIVE INCOME (LOSS)	195		172
FES
REVENUES:
Other	40		34
Total revenues	1,829		1,524
OPERATING EXPENSES:
Fuel	319		300
Other operating expenses	452		379
Provision for depreciation	74		75
General taxes	39		37
Total operating expenses	1,977		1,429
OPERATING INCOME (LOSS)	(148)		95
OTHER INCOME (EXPENSE):
Loss on debt redemptions	(5)		(71)
Investment income	20		17
Miscellaneous income	0		2
Capitalized interest	12		9
Total other income (expense)	(11)		(96)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(159)		(1)
INCOME TAXES (BENEFITS)	(56)		0
INCOME FROM CONTINUING OPERATIONS	(103)		(1)
Discontinued operations (net of income taxes of $70 and $2, respectively) (Note 13)	116		3
NET INCOME (LOSS)	13		2
STATEMENTS OF COMPREHENSIVE INCOME
NET INCOME	13		2
OTHER COMPREHENSIVE INCOME (LOSS):
Pension and OPEB prior service costs	(5)		(6)
Amortized loss (gain) on derivative hedges	(2)		(1)
Change in unrealized gain on available-for-sale securities	19		5
Other comprehensive income (loss)	12		(2)
Income taxes (benefits) on other comprehensive income (loss)	4		(1)
Net other comprehensive income (loss)	8		(1)
COMPREHENSIVE INCOME (LOSS)	21		1
FES | Affiliates
REVENUES:
Electric sales	349		156
OPERATING EXPENSES:
Purchased power	64		132
OTHER INCOME (EXPENSE):
Interest expense	(2)		(1)
FES | Non-Affiliates
REVENUES:
Electric sales	1,440		1,334
OPERATING EXPENSES:
Purchased power	1,029		506
OTHER INCOME (EXPENSE):
Interest expense	$ (36)		$ (52)

[1] Includes excise tax collections of $117 million and $122 million in the three months ended March 31, 2014 and 2013, respectively.