Consolidated Statements of Income (FirstEnergy Corp.) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
REVENUES:
Electric utilities	$ 2,530		$ 2,670		$ 7,139		$ 7,533
Unregulated businesses	1,506		1,382		4,131		4,247
Total revenues	4,036	[1]	4,052	[1]	11,270	[1]	11,780	[1]
OPERATING EXPENSES:
Fuel	657		636		1,915		1,833
Purchased power	1,120		1,063		2,932		3,367
Other operating expenses	877		861		2,645		2,597
Provision for depreciation	316		272		909		834
Amortization of regulatory assets, net	312		61		443		198
General taxes	242		257		747		760
Impairment of long-lived assets	0		0		473		0
Total operating expenses	3,524		3,150		10,064		9,589
OPERATING INCOME (LOSS)	512		902		1,206		2,191
OTHER INCOME (EXPENSE):
Gain (loss) on debt redemptions	9		0		(132)		0
Investment income	5		39		8		63
Interest expense	(257)		(230)		(771)		(750)
Capitalized interest	17		18		51		54
Total other income (expense)	(226)		(173)		(844)		(633)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	286		729		362		1,558
INCOME TAXES	77		307		129		650
NET INCOME FROM CONTINUING OPERATIONS	209		422		233		908
Discontinued operations (net of income taxes of $3, $2, $9 and $8, respectively) (Note 16)	9		3		17		11
NET INCOME (LOSS)	218		425		250		919
Income attributable to noncontrolling interest	0		0		0		1
EARNINGS AVAILABLE TO FIRSTENERGY CORP.	$ 218		$ 425		$ 250		$ 918
EARNINGS PER SHARE OF COMMON STOCK:
Basic - Continuing Operations, in dollars per share	$ 0.50		$ 1.01		$ 0.56		$ 2.17
Basic - Discontinued Operations (Note 16), in dollars per share	$ 0.02		$ 0.01		$ 0.04		$ 0.03
Basic - Earnings Available to FirstEnergy Corp., in dollars per share	$ 0.52		$ 1.02		$ 0.60		$ 2.20
Diluted - Continuing Operations, in dollars per share	$ 0.50		$ 1.00		$ 0.56		$ 2.16
Diluted - Discontinued Operations (Note 16), in dollars per share	$ 0.02		$ 0.01		$ 0.04		$ 0.03
Diluted - Earnings Available to FirstEnergy Corp., in dollars per share	$ 0.52		$ 1.01		$ 0.60		$ 2.19
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING:
Basic, in shares	418		417		418		418
Diluted, in shares	419		419		419		419
DIVIDENDS DECLARED PER SHARE OF COMMON STOCK, in dollars per share	$ 1.10		$ 1.10		$ 1.65		$ 1.65

[1] Includes excise tax collections of $117 million and $123 million in the three months ended September 30, 2013 and 2012, respectively, and $346 million and $351 million in the nine months ended September 30, 2013 and 2012, respectively.