FirstEnergy Solutions 10-K 19 Feb 10 2009 FY Annual report Financial data

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (USD $)
In Millions, except Per Share data	12 Months Ended Dec. 31, 2009		12 Months Ended Dec. 31, 2008		12 Months Ended Dec. 31, 2007
REVENUES:
Electric utilities	$11,139		$12,061		$11,305
Unregulated businesses	1,828		1,566		1,497
Total revenues	12,967	[1]	13,627	[3]	12,802	[2]
EXPENSES:
Fuel	1,153		1,340		1,178
Purchased power	4,730		4,291		3,836
Other operating expenses	2,697		3,045		3,083
Provision for depreciation	736		677		638
Amortization of regulatory assets	1,155		1,053		1,019
Deferral of regulatory assets	(136)		(316)		(524)
General taxes	753		778		754
Total expenses	11,088		10,868		9,984
OPERATING INCOME	1,879		2,759		2,818
OTHER INCOME (EXPENSE):
Investment income	204		59		120
Interest expense	(978)		(754)		(775)
Capitalized interest	130		52		32
Total other expense	(644)		(643)		(623)
INCOME BEFORE INCOME TAXES	1,235		2,116		2,195
INCOME TAXES	245		777		883
NET INCOME	990		1,339		1,312
Less: Noncontrolling interest income (loss)	(16)		(3)		3
EARNINGS AVAILABLE TO FIRSTENERGY CORP.	$1,006		$1,342		$1,309
BASIC EARNINGS PER SHARE OF COMMON STOCK	3.31		4.41		4.27
WEIGHTED AVERAGE NUMBER OF BASIC SHARES OUTSTANDING	304		304		306
DILUTED EARNINGS PER SHARE OF COMMON STOCK	3.29		4.38		4.22
WEIGHTED AVERAGE NUMBER OF DILUTED SHARES OUTSTANDING	306		307		310
[1]Includes $395 million of excise tax collections.
[2]Includes $425 million of excise tax collections.
[3]Includes $432 million of excise tax collections.

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)
In Millions	Dec. 31, 2009	Dec. 31, 2008
CURRENT ASSETS:
Cash and cash equivalents	$874	$545
Receivables-
Customers	1,244	1,304
Other	153	167
Materials and supplies, at average cost	647	605
Prepaid taxes	248	283
Other	154	149
Total current assets	3,320	3,053
PROPERTY, PLANT AND EQUIPMENT:
In service	27,826	26,482
Less - Accumulated provision for depreciation	11,397	10,821
Total in service, net of accumulated depreciation	16,429	15,661
Construction work in progress	2,735	2,062
Total property, plant and equipment	19,164	17,723
INVESTMENTS:
Nuclear plant decommissioning trusts	1,859	1,708
Investments in lease obligation bonds	543	598
Other	621	711
Total investments	3,023	3,017
DEFERRED CHARGES AND OTHER ASSETS:
Goodwill	5,575	5,575
Regulatory assets	2,356	3,140
Power purchase contract asset	200	434
Other	666	579
Total deferred charges and other assets	8,797	9,728
Total assets	34,304	33,521
CURRENT LIABILITIES:
Currently payable long-term debt	1,834	2,476
Short-term borrowings	1,181	2,397
Accounts payable	829	794
Accrued taxes	314	333
Other	1,130	1,098
Total current liabilities	5,288	7,098
Common stockholders' equity-
Common stock	31	31
Other paid-in capital	5,448	5,473
Accumulated other comprehensive loss	(1,415)	(1,380)
Retained earnings	4,495	4,159
Total common stockholders' equity	8,559	8,283
Noncontrolling interest	(2)	32
Total equity	8,557	8,315
Long-term debt and other long-term obligations	11,908	9,100
Total capitalization	20,465	17,415
NONCURRENT LIABILITIES:
Accumulated deferred income taxes	2,468	2,163
Asset retirement obligations	1,425	1,335
Deferred gain on sale and leaseback transaction	993	1,027
Power purchase contract liability	643	766
Retirement benefits	1,534	1,884
Lease market valuation liability	262	308
Other	1,226	1,525
Total noncurrent liabilities	8,551	9,008
Total liabilities and capitalization	$34,304	$33,521

PARENTHETICAL DATA TO THE CONSO

PARENTHETICAL DATA TO THE CONSOLIDATED BALANCE SHEETS (USD $)
In Millions, except Share data	Dec. 31, 2009	Dec. 31, 2008
Receivables-
Accumulated provision for uncollectible accounts - customers	$33	$28
Accumulated provision for uncollectible accounts - other	$7	$9
Common stockholders' equity-
Common stock - par value	0.1	0.1
Common stock - shares authorized	375,000,000	375,000,000
Common stock - shares outstanding	304,835,407	304,835,407

CONSOLIDATED STATEMENTS OF COMM

CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDERS' EQUITY (USD $)
In Millions, except Share data	Common Stock [Member]	Additional Paid In Capital [Member]	Accumulated Other Comprehensive Income [Member]	Retained Earnings [Member]	Unallocated ESOP Common Stock [Member]	Total
Beginning Balance (in shares) at Dec. 31, 2006	319,205,517
Beginning Balance at Dec. 31, 2006	$32	$6,466	($259)	$2,806	($10)
Earnings available to FirstEnergy Corp.				1,309		1,309
Unrealized gain on derivative hedges			(17)
Unrealized gain on investments			47
Pension and other postretirement benefits			179
Stock options exercised		(40)
Allocation of ESOP shares		26			10
Restricted stock units		23
Stock-based compensation		2
FIN 48 cumulative effect adjustment				(3)
Repurchase of common stock	(1)	(968)
Repurchase of common stock (in shares)	(14,370,110)
Cash dividends declared on common stock				(625)
Ending Balance at Dec. 31, 2007	31	5,509	(50)	3,487	0
Ending Balance (in shares) at Dec. 31, 2007	304,835,407
Earnings available to FirstEnergy Corp.				1,342		1,342
Unrealized gain on derivative hedges			(28)
Unrealized gain on investments			(146)
Pension and other postretirement benefits			(1,156)
Stock options exercised		(36)
Restricted stock units		(1)
Stock-based compensation		1
Cash dividends declared on common stock				(670)
Ending Balance at Dec. 31, 2008	31	5,473	(1,380)	4,159	0	8,315
Ending Balance (in shares) at Dec. 31, 2008	304,835,407					304,835,407
Earnings available to FirstEnergy Corp.				1,006		1,006
Unrealized gain on derivative hedges			27
Unrealized gain on investments			(43)
Pension and other postretirement benefits			(19)
Stock options exercised		(3)
Restricted stock units		7
Stock-based compensation		1
Cash dividends declared on common stock				(670)
Acquisition adjustment of non-contrilling interest		(30)
Ending Balance at Dec. 31, 2009	$31	$5,448	($1,415)	$4,495	$0	$8,557
Ending Balance (in shares) at Dec. 31, 2009	304,835,407					304,835,407

1_PARENTHETICAL DATA TO THE CON

PARENTHETICAL DATA TO THE CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDERS' EQUITY (USD $)
In Millions	1/1/2009 - 12/31/2009	1/1/2008 - 12/31/2008	1/1/2007 - 12/31/2007
Statement of Stockholders' Equity [Abstract]
Unrealized loss on derivative hedges taxes	($24)	$16	$8
Unrealized gain on investments taxes	31	86	(31)
Taxes on Pension and other postretirement taxes	($34)	$697	($169)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Millions	12 Months Ended Dec. 31, 2009	12 Months Ended Dec. 31, 2008	12 Months Ended Dec. 31, 2007
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME	$990	$1,339	$1,312
Adjustments to reconcile net income to net cash from operating activities-
Provision for depreciation	736	677	638
Amortization of regulatory assets	1,155	1,053	1,019
Deferral of regulatory assets	(136)	(316)	(524)
Nuclear fuel and lease amortization	128	112	101
Deferred purchased power and other costs	(338)	(226)	(350)
Deferred income taxes and investment tax credits, net	384	366	(9)
Investment impairment	62	123	26
Deferred rents and lease market valuation liability	(52)	(95)	(99)
Stock-based compensation	20	(64)	(39)
Accrued compensation and retirement benefits	22	(140)	(37)
Gain on asset sales	(27)	(72)	(30)
Electric service prepayment programs	(10)	(77)	(75)
Cash collateral, net	30	(31)	(68)
Gain on sales of investment securities held in trusts	(176)	(63)	(10)
Loss on debt redemption	146	0	0
Commodity derivative transactions, net (Note 6)	229	5	6
Pension trust contribution	(500)	0	(300)
Uncertain tax positions	(210)	(5)	19
Decrease (increase) in operating assets-
Receivables	75	(29)	(136)
Materials and supplies	(11)	(52)	79
Prepayments and other current assets	(19)	(263)	10
Increase (decrease) in operating liabilities-
Accounts payable	50	10	51
Accrued taxes	(103)	(39)	48
Accrued interest	67	4	(8)
Other	(47)	7	75
Net cash provided from operating activities	2,465	2,224	1,699
New Financing-
Long-term debt	4,632	1,367	1,520
Short-term borrowings, net	0	1,494	0
Redemptions and Repayments-
Common stock	0	0	(969)
Long-term debt	(2,610)	(1,034)	(1,070)
Short-term borrowings, net	(1,246)	0	(205)
Common stock dividend payments	(670)	(671)	(616)
Other	(57)	19	(7)
Net cash provided from (used for) financing activities	49	1,175	(1,347)
CASH FLOWS FROM INVESTING ACTIVITIES:
Property additions	(2,203)	(2,888)	(1,633)
Proceeds from asset sales	21	72	42
Proceeds from sale and leaseback transaction	0	0	1,329
Sales of investment securities held in trusts	2,229	1,656	1,294
Purchases of investment securities held in trusts	(2,306)	(1,749)	(1,397)
Cash investments	60	60	72
Other	14	(134)	(20)
Net cash used for investing activities	(2,185)	(2,983)	(313)
Net increase in cash and cash equivalents	329	416	39
Cash and cash equivalents at beginning of year	545	129	90
Cash and cash equivalents at end of year	874	545	129
Cash Paid During the Year-
Interest (net of amounts capitalized)	718	667	744
Income taxes	$173	$685	$710

1. ORGANIZATION AND BASIS OF PR

1. ORGANIZATION AND BASIS OF PRESENTATION
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
1. ORGANIZATION AND BASIS OF PRESENTATION	1.ORGANIZATION AND BASIS OF PRESENTATION FirstEnergy is a diversified energy company that holds, directly or indirectly, all of the outstanding common stock of its principal subsidiaries: OE, CEI, TE, Penn (a wholly owned subsidiary of OE), ATSI, JCPL, Met-Ed, Penelec, FENOC, FES and its subsidiaries FGCO and NGC, and FESC. FirstEnergy and its subsidiaries follow GAAP and comply with the regulations, orders, policies and practices prescribed by the SEC, FERC and, as applicable, the PUCO, PPUC and NJBPU. The preparation of financial statements in conformity with GAAP requires management to make periodic estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and disclosure of contingent assets and liabilities. Actual results could differ from these estimates. The reported results of operations are not indicative of results of operations for any future period. In preparing the financial statements, FirstEnergy and its subsidiaries have evaluated events and transactions for potential recognition or disclosure through February 18, 2010, the date the financial statements were issued. FirstEnergy and its subsidiaries consolidate all majority-owned subsidiaries over which they exercise control and, when applicable, entities for which they have a controlling financial interest. Intercompany transactions and balances are eliminated in consolidation unless otherwise prescribed by GAAP (see Note 16). FirstEnergy consolidates a VIE (see Note 8) when it is determined to be the VIE's primary beneficiary. Investments in non-consolidated affiliates over which FirstEnergy and its subsidiaries have the ability to exercise significant influence, but not control (20-50% owned companies, joint ventures and partnerships) are accounted for under the equity method. Under the equity method, the interest in the entity is reported as an investment in the Consolidated Balance Sheets and the percentage share of the entitys earnings is reported in the Consolidated Statements of Income. These footnotes combine results of FE, FES, OE, CEI, TE, JCPL, Met-Ed and Penelec. Certain prior year amounts have been reclassified to conform to the current year presentation. Unless otherwise indicated, defined terms used herein have the meanings set forth in the accompanying Glossary of Terms.

2. SIGNIFICANT ACCOUNTING POLIC

2. SIGNIFICANT ACCOUNTING POLICIES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	2.SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (A)ACCOUNTING FOR THE EFFECTS OF REGULATION FirstEnergy accounts for the effects of regulation through the application of regulatory accounting to its operating utilities since their rates: are established by a third-party regulator with the authority to set rates that bind customers; are cost-based; and can be charged to and collected from customers. An enterprise meeting all of these criteria capitalizes costs that would otherwise be charged to expense (regulatory assets) if the rate actions of its regulator make it probable that those costs will be recovered in future revenue. Regulatory accounting is applied only to the parts of the business that meet the above criteria. If a portion of the business applying regulatory accounting no longer meets those requirements, previously recorded net regulatory assets are removed from the balance sheet in accordance with GAAP. Regulatory assets on the Balance Sheets are comprised of the following: Regulatory Assets FE OE CEI TE JCPL Met-Ed Penelec (In millions) December 31, 2009 Regulatory transition costs $ 1,100 $ 73 $ 8 $ 8 $ 965 $ 116 $ (70 ) Customer shopping incentives 154 - 154 - - - - Customer receivables for future income taxes 329 58 3 1 31 114 122 Loss (Gain) on reacquired debt 51 18 1 (3 ) 22 8 5 Employee postretirement benefit costs 23 - 5 2 10 6 - Nuclear decommissioning, decontamination and spent fuel disposal costs (162 ) - - - (22 ) (83 ) (57 ) Asset removal costs (231 ) (23 ) (43 ) (17 ) (148 ) - - MISO/PJM transmission costs 148 (15 ) (15 ) (3 ) - 187 (6 ) Fuel costs 369 115 222 32 - - - Distribution costs 482 230 197 55 - - - Other 93 9 14 (5 ) 30 9 15 Total $ 2,356 $ 465 $ 546 $ 70 $ 888 $ 357 $ 9 December 31, 2008* Regulatory transition costs $ 1,452 $ 112 $ 80 $ 12 $ 1,236 $ 12 $ - Customer shopping incentives 420 - 420 - - - - Customer receivables for future income taxes 245 68 4 1 59 113 - Loss (Gain) on reacquired debt 51 20 1 (3 ) 24 9 - Employee postretirement benefit costs 31 - 7 3 13 8 - Nuclear decommissioning, decontamination and spent fuel disposal costs (57 ) - - - (2 ) (55 ) - Asset removal costs (215 )

3. PENSION AND OTHER POSTRETIRE

3. PENSION AND OTHER POSTRETIREMENT BENEFITS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
3. PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS	3.PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS FirstEnergy provides a noncontributory qualified defined benefit pension plan that covers substantially all of its employees and non-qualified pension plans that cover certain employees. The plans provide defined benefits based on years of service and compensation levels. FirstEnergy's funding policy is based on actuarial computations using the projected unit credit method. On September 2, 2009, the Utilities and ATSI made a combined $500 million voluntary contribution to their qualified pension plan. Due to the significance of the voluntary contribution, FirstEnergy elected to remeasure its qualified pension plan as of August 31, 2009. FirstEnergy estimates that additional cash contributions will not be required by law before 2012. FirstEnergy provides a minimum amount of noncontributory life insurance to retired employees in addition to optional contributory insurance. Health care benefits, which include certain employee contributions, deductibles and co-payments, are also available upon retirement to employees hired prior to January 1, 2005, their dependents and, under certain circumstances, their survivors. FirstEnergy recognizes the expected cost of providing other postretirement benefits to employees and their beneficiaries and covered dependents from the time employees are hired until they become eligible to receive those benefits. During 2006, FirstEnergy amended the OPEB plan effective in 2008 to cap the monthly contribution for many of the retirees and their spouses receiving subsidized health care coverage. During 2008, FirstEnergy further amended the OPEB plan effective in 2010 to limit the monthly contribution for pre-1990 retirees. On June 2, 2009, FirstEnergy amended its health care benefits plan for all employees and retirees eligible to participate in that plan. The amendment, which reduces future health care coverage subsidies paid by FirstEnergy on behalf of participants, triggered a remeasurement of FirstEnergys other postretirement benefit plans as of May 31, 2009. FirstEnergy also has obligations to former or inactive employees after employment, but before retirement, for disability-related benefits. Pension and OPEB costs are affected by employee demographics (including age, compensation levels, and employment periods), the level of contributions made to the plans and earnings on plan assets. Pension and OPEB costs may also be affected by changes in key assumptions, including anticipated rates of return on plan assets, the discount rates and health care trend rates used in determining the projected benefit obligations for pension and OPEB costs. FirstEnergy uses a December 31 measurement date for its pension and OPEB plans. The fair value of the plan assets represents the actual market value as of the measurement date. In the third quarter of 2009, FirstEnergy incurred a $13 million net postretirement benefit cost (including amounts capitalized) related to a liability created by the VERO offered by FirstEnergy to qualified employees. The special termination benefits of the VERO included additional health care coverage subsidies paid by FirstEnergy to those qu

4. STOCK-BASED COMPENSATION PLA

4. STOCK-BASED COMPENSATION PLANS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
4. STOCK-BASED COMPENSATION PLANS	4.STOCK-BASED COMPENSATION PLANS FirstEnergy has four stock-based compensation programs LTIP, EDCP, ESOP and DCPD. In 2001, FirstEnergy also assumed responsibility for two stock-based plans as a result of its acquisition of GPU. No further stock-based compensation can be awarded under GPUs Stock Option and Restricted Stock Plan for MYR Group Inc. Employees (MYR Plan) or 1990 Stock Plan for Employees of GPU, Inc. and Subsidiaries (GPU Plan). All options and restricted stock under both plans have been converted into FirstEnergy options and restricted stock. Options under the GPU Plan became fully vested on November 7, 2001, and will expire on or before June 1, 2010. (A) LTIP FirstEnergys LTIP includes four stock-based compensation programs restricted stock, restricted stock units, stock options and performance shares. Under FirstEnergys LTIP, total awards cannot exceed 29.1 million shares of common stock or their equivalent. Only stock options, restricted stock and restricted stock units have currently been designated to pay out in common stock, with vesting periods ranging from two months to ten years. Performance share awards are currently designated to be paid in cash rather than common stock and therefore do not count against the limit on stock-based awards. As of December 31, 2009, 7.9 million shares were available for future awards. FirstEnergy records the actual tax benefit realized for tax deductions when awards are exercised or distributed. Realized tax benefits during the years ended December 31, 2009, 2008, and 2007 were $9 million, $43 million, and $34 million, respectively. The excess of the deductible amount over the recognized compensation cost is recorded to stockholders equity and reported as an other financing activity within the Consolidated Statements of Cash Flows. Restricted Stock and Restricted Stock Units Eligible employees receive awards of FirstEnergy common stock or stock units subject to restrictions. Those restrictions lapse over a defined period of time or based on performance. Dividends are received on the restricted stock and are reinvested in additional shares. Restricted common stock grants under the LTIP were as follows: 2009 2008 2007 Restricted common shares granted 73,255 82,607 77,388 Weighted average market price $ 43.68 $ 68.98 $ 67.98 Weighted average vesting period (years) 4.42 5.03 4.61 Dividends restricted Yes Yes Yes Vesting activity for restricted common stock during the year was as follows (forfeitures were not material): Weighted Number Average of Grant-Date Restricted Stock Shares Fair Value Nonvested as of January 1, 2009 667,933 $ 49.54 Nonvested as of December 31, 2009 648,293 48.84 Granted in 2009 73,255 43.68 Vested in 2009 85,881 42.73 FirstEnergy grants two types of restricted stock unit awards: discretionary-based and performance-based. With the discretionary-based, FirstEnergy grants the right to receive, at the end of the period of rest

5. FAIR VALUE OF FINANCIAL INST

5. FAIR VALUE OF FINANCIAL INSTRUMENTS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
5. FAIR VALUE OF FINANCIAL INSTRUMENTS	5.FAIR VALUE OF FINANCIAL INSTRUMENTS (A) LONG-TERM DEBT AND OTHER LONG-TERM OBLIGATIONS All borrowings with initial maturities of less than one year are considered as short-term financial instruments and are reported on the Consolidated Balance Sheets at cost (which approximates their fair market value) under the caption "short-term borrowings." The following table provides the approximate fair value and related carrying amounts of long-term debt and other long-term obligations as of December 31, 2009 and 2008: December31, 2009 December31, 2008 Carrying Fair Carrying Fair Value Value Value Value (In millions) FirstEnergy $ 13,753 $ 14,502 $ 11,585 $ 11,146 FES 4,224 4,306 2,552 2,528 OE 1,169 1,299 1,232 1,223 CEI 1,873 2,032 1,741 1,618 TE 600 638 300 244 JCPL 1,840 1,950 1,569 1,520 Met-Ed 842 909 542 519 Penelec 1,144 1,177 779 721 The fair values of long-term debt and other long-term obligations reflect the present value of the cash outflows relating to those securities based on the current call price, the yield to maturity or the yield to call, as deemed appropriate at the end of each respective period. The yields assumed were based on securities with similar characteristics offered by corporations with credit ratings similar to those of FES and the Utilities. (B) INVESTMENTS All temporary cash investments purchased with an initial maturity of three months or less are reported as cash equivalents on the Consolidated Balance Sheets at cost, which approximates their fair market value. Investments other than cash and cash equivalents include held-to-maturity securities, available-for-sale securities, and notes receivable. FES and the Utilities periodically evaluate their investments for other-than-temporary impairment. They first consider their intent and ability to hold an equity investment until recovery and then consider, among other factors, the duration and the extent to which the security's fair value has been less than cost and the near-term financial prospects of the security issuer when evaluating an investment for impairment. For debt securities, FES and the Utilities consider their intent to hold the security, the likelihood that they will be required to sell the security before recovery of their cost basis, and the likelihood of recovery of the security's entire amortized cost basis. Available-For-Sale Securities FES and the Utilities hold debt and equity securities within their nuclear decommissioning trusts, nuclear fuel disposal trusts and NUG trusts. These trust investments are considered as available-for-sale at fair market value. FES and the Utilities have no securities held for trading purposes. The following table summarizes the cost basis, unrealized gains and losses and fair values of investments in available-for-sale securities as of December 31, 2009 and 2008: December31, 2009(1)

6. DERIVATIVE INSTRUMENTS

6. DERIVATIVE INSTRUMENTS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
6. DERIVATIVE INSTRUMENTS	6. DERIVATIVE INSTRUMENTS FirstEnergy is exposed to financial risks resulting from fluctuating interest rates and commodity prices, including prices for electricity, natural gas, coal and energy transmission. To manage the volatility relating to these exposures, FirstEnergy uses a variety of derivative instruments, including forward contracts, options, futures contracts and swaps. The derivatives are used for risk management purposes. In addition to derivatives, FirstEnergy also enters into master netting agreements with certain third parties. FirstEnergy's Risk Policy Committee, comprised of members of senior management, provides general management oversight for risk management activities throughout FirstEnergy. The Committee is responsible for promoting the effective design and implementation of sound risk management programs and oversees compliance with corporate risk management policies and established risk management practices. FirstEnergy accounts for derivative instruments on its Consolidated Balance Sheets at fair value unless they meet the normal purchase and normal sales criteria. Derivatives that meet those criteria are accounted for at cost under the accrual method of accounting. The changes in the fair value of derivative instruments that do not meet the normal purchase and normal sales criteria are included in purchased power, other expense, unrealized gain (loss) on derivative hedges in other comprehensive income (loss), or as part of the value of the hedged item. A hypothetical 10% adverse shift (an increase or decrease depending on the derivative position) in quoted market prices in the near term on its derivative instruments would not have had a material effect on FirstEnergys consolidated financial position (assets, liabilities and equity) or cash flows as of December 31, 2009. Based on derivative contracts held as of December 31, 2009, an adverse 10% change in commodity prices would decrease net income by approximately $9 million during the next 12 months. Interest Rate Risk FirstEnergy uses a combination of fixed-rate and variable-rate debt to manage interest rate exposure. Fixed-to-floating interest rate swaps are used, which are typically designated as fair value hedges, as a means to manage interest rate exposure. In addition, FirstEnergy uses interest rate derivatives to lock in interest rate levels in anticipation of future financings, which are typically designated as cash-flow hedges. Cash Flow Hedges Under the revolving credit facility (see Note 14), FirstEnergy and its subsidiaries, incur variable interest charges based on LIBOR. FirstEnergy currently holds a swap with a notional value of $100 million to hedge against changes in associated interest rates. This hedge will expire in January 2010 and is accounted for as a cash flow hedge. As of December 31, 2009, the fair value of the outstanding swap was immaterial. FirstEnergy uses forward starting swap agreements to hedge a portion of the consolidated interest rate risk associated with issuances of fixed-rate, long-term debt securities of its subsidiaries. These derivatives are treated as cash flow hedges, protecting against the risk of c

7. LEASES

7. LEASES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
7. LEASES	7. LEASES FirstEnergy leases certain generating facilities, office space and other property and equipment under cancelable and noncancelable leases. In 1987, OE sold portions of its ownership interests in Perry Unit 1 and Beaver Valley Unit 2 and entered into operating leases on the portions sold for basic lease terms of approximately 29 years. In that same year, CEI and TE also sold portions of their ownership interests in Beaver Valley Unit 2 and Bruce Mansfield Units 1, 2 and 3 and entered into similar operating leases for lease terms of approximately 30 years. During the terms of their respective leases, OE, CEI and TE are responsible, to the extent of their leasehold interests, for costs associated with the units including construction expenditures, operation and maintenance expenses, insurance, nuclear fuel, property taxes and decommissioning. They have the right, at the expiration of the respective basic lease terms, to renew their respective leases. They also have the right to purchase the facilities at the expiration of the basic lease term or any renewal term at a price equal to the fair market value of the facilities. The basic rental payments are adjusted when applicable federal tax law changes. On July 13, 2007, FGCO completed a sale and leaseback transaction for its 93.825% undivided interest in Bruce Mansfield Unit 1, representing 779 MW of net demonstrated capacity. The purchase price of approximately $1.329 billion (net after-tax proceeds of approximately $1.2 billion) for the undivided interest was funded through a combination of equity investments by affiliates of AIG Financial Products Corp. and Union Bank of California, N.A. in six lessor trusts and proceeds from the sale of $1.135 billion aggregate principal amount of 6.85% pass through certificates due 2034. A like principal amount of secured notes maturing June 1, 2034 were issued by the lessor trusts to the pass through trust that issued and sold the certificates. The lessor trusts leased the undivided interest back to FGCO for a term of approximately 33 years under substantially identical leases. FES has unconditionally and irrevocably guaranteed all of FGCOs obligations under each of the leases. This transaction, which is classified as an operating lease for FES and FirstEnergy, generated tax capital gains of approximately $815 million, all of which were offset by existing tax capital loss carryforwards. Accordingly, FirstEnergy reduced its tax loss carryforward valuation allowances in 2007, with a corresponding reduction to goodwill (see Note 2(E)). Effective October 16, 2007 CEI and TE assigned their leasehold interests in the Bruce Mansfield Plant to FGCO and FGCO assumed all of CEIs and TEs obligations arising under those leases. FGCO subsequently transferred the Unit 1 portion of these leasehold interests, as well as FGCOs leasehold interests under its July 13, 2007 Bruce Mansfield Unit 1 sale and leaseback transaction, to a newly formed wholly-owned subsidiary on December 17, 2007. The subsidiary assumed all of the lessee obligations associated with the assigned interests. However, CEI and TE remain primarily liable on the 1987 leases and r

8. VARIABLE INTEREST ENTITIES

8. VARIABLE INTEREST ENTITIES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
8. VARIABLE INTEREST ENTITIES	8. VARIABLE INTEREST ENTITIES FirstEnergy and its subsidiaries consolidate VIEs when they are determined to be the VIE's primary beneficiary. FirstEnergy and its subsidiaries reflect the portion of VIEs not owned by them in the caption noncontrolling interest within the consolidated financial statements. The change in noncontrolling interest during 2009 is the result of net losses of the noncontrolling interests ($16 million), the acquisition of additional interest in certain joint ventures and other adjustments ($13 million), and distributions to owners ($5 million). Mining Operations On July 16, 2008, FEV entered into a joint venture with the Boich Companies, a Columbus, Ohio-based coal company, to acquire a majority stake in the Signal Peak mining and coal transportation operations near Roundup, Montana. FEV made a $125 million equity investment in the joint venture, which acquired 80% of the mining operations (Signal Peak Energy, LLC) and 100% of the transportation operations, with FEV owning a 45% economic interest and an affiliate of the Boich Companies owning a 55% economic interest in the joint venture. Both parties have a 50% voting interest in the joint venture. FEV consolidates the mining and transportation operations of this joint venture in its financial statements. In March 2009, FEV agreed to pay a total of $8.5 million to affiliates of the Boich Companies to purchase an additional 5% economic interest in the Signal Peak mining and coal transportation operations. Voting interests remained unchanged after the sale was completed in July 2009. Effective August 21, 2009, the joint venture acquired the remaining 20% stake in the mining operations by issuing a five-year note for $47.5 million. For both acquisitions, the difference between the consideration paid and the adjustment to the noncontrolling interest resulted in a charge to other paid in capital of approximately $30 million. Trusts FirstEnergy's consolidated financial statements include PNBV and Shippingport, VIEs created in 1996 and 1997, respectively, to refinance debt originally issued in connection with sale and leaseback transactions. PNBV and Shippingport financial data are included in the consolidated financial statements of OE and CEI, respectively. PNBV was established to purchase a portion of the lease obligation bonds issued in connection with OE's 1987 sale and leaseback of its interests in the Perry Plant and Beaver Valley Unit 2. OE used debt and available funds to purchase the notes issued by PNBV for the purchase of lease obligation bonds. Ownership of PNBV includes a 3% equity interest by an unaffiliated third party and a 3% equity interest held by OES Ventures, a wholly owned subsidiary of OE. Shippingport was established to purchase all of the lease obligation bonds issued in connection with CEI's and TE's Bruce Mansfield Plant sale and leaseback transaction in 1987. CEI and TE used debt and available funds to purchase the notes issued by Shippingport. Loss Contingencies FES and the Ohio Companies are exposed to losses under their applicable sale-leaseback agreements upon the occurrence of certain contingent events that eac

9. DIVESTITURES

9. DIVESTITURES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
9. DIVESTITURES	9. DIVESTITURES On March 7, 2008, FirstEnergy sold certain telecommunication assets, resulting in a net after-tax gain of $19.3 million. The sale of assets did not meet the criteria for classification as discontinued operations as of December 31, 2008.

10. TAXES

10. TAXES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
10. TAXES	10. TAXES Income Taxes FirstEnergy records income taxes in accordance with the liability method of accounting. Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts recognized for tax purposes. Investment tax credits, which were deferred when utilized, are being amortized over the recovery period of the related property. Deferred income tax liabilities related to temporary tax and accounting basis differences and tax credit carryforward items are recognized at the statutory income tax rates in effect when the liabilities are expected to be paid. Deferred tax assets are recognized based on income tax rates expected to be in effect when they are settled. Details of income taxes for the three years ended December 31, 2009 are shown below: PROVISION FOR INCOME TAXES FE FES OE CEI TE JCPL Met-Ed Penelec (In millions) 2009 Currently payable- Federal $ (183 ) $ 87 $ 21 $ 40 $ 6 $ 40 $ (34 ) $ (21 ) State 44 8 4 2 - 26 (4 ) 4 (139 ) 95 25 42 6 66 (38 ) (17 ) Deferred, net- Federal 351 200 40 (52 ) - 41 60 60 State 42 24 3 1 2 2 7 4 393 224 43 (51 ) 2 43 67 64 Investment tax credit amortization (9 ) (4 ) (2 ) (1 ) - - - (1 ) Total provision for income taxes $ 245 $ 315 $ 66 $ (10 ) $ 8 $ 109 $ 29 $ 46 2008 Currently payable- Federal $ 355 $ 156 $ 79 $ 119 $ 46 $ 101 $ 5 $ (34 ) State 56 20 4 6 - 34 6 (3 ) 411 176 83 125 46 135 11 (37 ) Deferred, net- Federal 343 109 22 16 (12 ) 9 47 84 State 36 12 (2 ) (2 ) (4 ) 4 4 12 379 121 20 14 (16 ) 13 51 96 Investment tax credit amortization (13 ) (4 ) (4 ) (2 ) - - (1 ) (1 ) Total provision for income taxes $ 777 $ 293 $ 99 $ 137 $ 30 $ 148 $ 61 $ 58 2007 Currently payable- Federal $ 706 $ 528 $ 105 $ 166 $ 73 $ 138 $ 26 $ 41 State 187 111 (4 ) 20 7 42 7 12 893 639 101 186 80 180

11. REGULATORY MATTERS

11. REGULATORY MATTERS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
11. REGULATORY MATTERS	11. REGULATORY MATTERS (A) RELIABILITY INITIATIVES In 2005, Congress amended the FPA to provide for federally-enforceable mandatory reliability standards. The mandatory reliability standards apply to the bulk power system and impose certain operating, record-keeping and reporting requirements on the Utilities and ATSI. The NERC is charged with establishing and enforcing these reliability standards, although it has delegated day-to-day implementation and enforcement of its responsibilities to eight regional entities, including ReliabilityFirst Corporation. All of FirstEnergys facilities are located within the ReliabilityFirst region. FirstEnergy actively participates in the NERC and ReliabilityFirst stakeholder processes, and otherwise monitors and manages its companies in response to the ongoing development, implementation and enforcement of the reliability standards. FirstEnergy believes that it is in compliance with all currently-effective and enforceable reliability standards. Nevertheless, it is clear that the NERC, ReliabilityFirst and the FERC will continue to refine existing reliability standards as well as to develop and adopt new reliability standards. The financial impact of complying with new or amended standards cannot be determined at this time. However, the 2005 amendments to the FPA provide that all prudent costs incurred to comply with the new reliability standards be recovered in rates. Still, any future inability on FirstEnergys part to comply with the reliability standards for its bulk power system could result in the imposition of financial penalties that could have a material adverse effect on its financial condition, results of operations and cash flows. In April 2007, ReliabilityFirst performed a routine compliance audit of FirstEnergys bulk-power system within the Midwest ISO region and found it to be in full compliance with all audited reliability standards. Similarly, in October 2008, ReliabilityFirst performed a routine compliance audit of FirstEnergys bulk-power system within the PJM region and found it to be in full compliance with all audited reliability standards .Our MISO facilities are next due for the periodic audit by ReliabilityFirst later this year. On December 9, 2008, a transformer at JCPLs Oceanview substation failed, resulting in an outage on certain bulk electric system (transmission voltage) lines out of the Oceanview and Atlantic substations, with customers in the affected area losing power. Power was restored to most customers within a few hours and to all customers within eleven hours. On December 16, 2008, JCPL provided preliminary information about the event to certain regulatory agencies, including the NERC. On March 31, 2009, the NERC initiated a Compliance Violation Investigation in order to determine JCPLs contribution to the electrical event and to review any potential violation of NERC Reliability Standards associated with the event. The initial phase of the investigation required JCPL to respond to the NERCs request for factual data about the outage. JCPL submitted its written response on May 1, 2009. The NERC conducted on site interviews with personnel inv

12. CAPITALIZATION

12. CAPITALIZATION
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
12. CAPITALIZATION	12. CAPITALIZATION (A) COMMON STOCK Retained Earnings and Dividends As of December 31, 2009, FirstEnergy's unrestricted retained earnings were $4.5 billion. Dividends declared in 2009 were $2.20, which included four quarterly dividends of $0.55 per share paid in the second, third and fourth quarters of 2009 and payable in the first quarter of 2010. Dividends declared in 2008 were $2.20, which included four quarterly dividends of $0.55 per share paid in the second, third and fourth quarters of 2008 and first quarter of 2009. The amount and timing of all dividend declarations are subject to the discretion of the Board of Directors and its consideration of business conditions, results of operations, financial condition and other factors. In addition to paying dividends from retained earnings, each of FirstEnergys electric utility subsidiaries has authorization from the FERC to pay cash dividends to FirstEnergy from paid-in capital accounts, as long as its equity to total capitalization ratio (without consideration of retained earnings) remains above 35%. The articles of incorporation, indentures and various other agreements relating to the long-term debt of certain FirstEnergy subsidiaries contain provisions that could further restrict the payment of dividends on their common stock. None of these provisions materially restricted FirstEnergys subsidiaries ability to pay cash dividends to FirstEnergy as of December 31, 2009. (B) PREFERRED AND PREFERENCE STOCK FirstEnergys and the Utilities preferred stock and preference stock authorizations are as follows: Preferred Stock Preference Stock Shares Par Shares Par Authorized Value Authorized Value FirstEnergy 5,000,000 $ 100 OE 6,000,000 $ 100 8,000,000 no par OE 8,000,000 $ 25 Penn 1,200,000 $ 100 CEI 4,000,000 no par 3,000,000 no par TE 3,000,000 $ 100 5,000,000 $ 25 TE 12,000,000 $ 25 JCPL 15,600,000 no par Met-Ed 10,000,000 no par Penelec 11,435,000 no par No preferred shares or preference shares are currently outstanding. (C) LONG-TERM DEBT AND OTHER LONG-TERM OBLIGATIONS The following table presents the outstanding consolidated long-term debt and other long-term obligations of FirstEnergy as of December 31, 2009 and 2008: Weighted Average December 31, Interest Rate (%) 2009 2008 (In millions) FMBs: Due 2009-2013 5.96 $ 28 $ 29 Due 2014-2018 8.84 330 330 Due 2019-2023 6.22 107 7 Due 2024-2028 8.75 314 14 Due 2038 8.25 275 275 Total FMBs 1,054 655 Secured Notes: Due 2009-2013 7.68 356 607 Due 2014-2018 7.35 557 613 Due 2019-2023 7.05 341 70 Total Secured No

13. ASSET RETIREMENT OBLIGATION

13. ASSET RETIREMENT OBLIGATIONS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
13. ASSET RETIREMENT OBLIGATIONS	13.ASSET RETIREMENT OBLIGATIONS FirstEnergy has recognized applicable legal obligations for AROs and their associated cost for nuclear power plant decommissioning, reclamation of a sludge disposal pond and closure of two coal ash disposal sites. In addition, FirstEnergy has recognized conditional retirement obligations (primarily for asbestos remediation). The ARO liabilities for FES, OE and TE primarily relate to the decommissioning of the Beaver Valley, Davis-Besse and Perry nuclear generating facilities (OE for its leasehold interest in Beaver Valley Unit 2 and Perry and TE for its leasehold interest in Beaver Valley Unit 2). The ARO liabilities for JCPL, Met-Ed and Penelec primarily relate to the decommissioning of the TMI-2 nuclear generating facility. FES and the Utilities use an expected cash flow approach to measure the fair value of their nuclear decommissioning AROs. FirstEnergy, FES and the Utilities maintain nuclear decommissioning trust funds that are legally restricted for purposes of settling the nuclear decommissioning ARO. The fair values of the decommissioning trust assets as of December 31, 2009 and 2008 were as follows: 2009 2008 (In millions) FE $ 1,859 $ 1,700 FES 1,089 1,034 OE 121 117 TE 74 74 JCPL 167 143 Met-Ed 266 226 Penelec 143 115 Accounting standards for conditional retirement obligations associated with tangible long-lived assets require recognition of the fair value of a liability for an ARO in the period in which it is incurred if a reasonable estimate can made, even though there may be uncertainty about timing or method of settlement. When settlement is conditional on a future event occurring, it is reflected in the measurement of the liability, not in the recognition of the liability. The following table summarizes the changes to the ARO balances during 2009 and 2008. ARO Reconciliation FE FES OE CEI TE JCPL Met-Ed Penelec (In millions) Balance as of January 1, 2008 $ 1,279 $ 810 $ 105 $ 2 $ 28 $ 90 $ 161 $ 82 Liabilities incurred 5 - - - - - - - Liabilities settled (3 ) (2 ) - - - - - - Accretion 84 55 5 - 2 5 10 5 Revisions in estimated cash flows (18 ) - (18 ) - - - - - Balance as of December 31, 2008 1,347 863 92 2 30 95 171 87 Liabilities incurred 4 1 - - - - - - Accretion 90 58 6 - 2 7 11 6 Revisions in estimated cash flows (16 ) (1 ) (12 ) - - - (2 ) (1 ) Balance as of December 31, 2009 $ 1,425 $ 921 $ 86 $ 2 $ 32 $ 102 $ 180 $ 92 (1) OE revised the estimated cash flows associated with the retired Gorge and Toronto plants b

14. SHORT-TERM BORROWINGS AND B

14. SHORT-TERM BORROWINGS AND BANK LINES OF CREDIT
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
14. SHORT-TERM BORROWINGS AND BANK LINES OF CREDIT	14.SHORT-TERM BORROWINGS AND BANK LINES OF CREDIT FirstEnergy had approximately $1.2 billion of short-term indebtedness as of December 31, 2009, comprised of $1.1 billion of borrowings under a $2.75 billion revolving line of credit, $100 million of other bank borrowings and $31 million of currently payable notes. Total short-term bank lines of committed credit to FirstEnergy and the Utilities as of January 31, 2010 were approximately $3.4 billion of which $1.7billion was unused and available. FirstEnergy, along with certain of its subsidiaries, are parties to a $2.75 billion five-year revolving credit facility. FirstEnergy has the ability to request an increase in the total commitments available under this facility up to a maximum of $3.25 billion, subject to the discretion of each lender to provide additional commitments. Commitments under the facility are available until August 24, 2012, unless the lenders agree, at the request of the borrowers, to an unlimited number of additional one-year extensions. Generally, borrowings under the facility must be repaid within 364 days. Available amounts for each borrower are subject to a specified sub-limit, as well as applicable regulatory and other limitations. The annual facility fee is 0.125%. The following table summarizes the borrowing sub-limits for each borrower under the facility, as well as the limitations on short-term indebtedness applicable to each borrower under current regulatory approvals and applicable statutory and/or charter limitations as of December 31, 2009: Revolving Regulatory and Credit Facility Other Short-Term Borrower Sub-Limit Debt Limitations (In millions) FirstEnergy $ 2,750 $ - (1) FES 1,000 - (1) OE 500 500 Penn 50 33 (2) CEI 250 (3) 500 TE 250 (3) 500 JCPL 425 411 (2) Met-Ed 250 300 (2) Penelec 250 300 (2) ATSI 50 (4) 50 (1) No regulatory approvals, statutory or charter limitations applicable. (2) Excluding amounts which may be borrowed under the regulated companies' money pool. (3) Borrowing sub-limits for CEI and TE may be increased to up to $500 million by delivering notice to the administrative agent that such borrower has senior unsecured debt ratings of at least BBB by SP and Baa2 by Moody's. (4) The borrowing sub-limit for ATSI may be increased up to $100 million by delivering notice to the administrative agent that ATSI has received regulatory approval to have short-term borrowings up to the same amount. The regulated companies also have the ability to borrow from each other and FirstEnergy to meet their short-term working capital requirements. A similar but separate arrangement exists among the unregulated companies. FESC administers these two money pools and tracks FirstEnergys surplus funds and those of the respective regulated and unregulated subsidiaries, as well as proceeds available from bank borrowings. Companies receiving a loan under the money pool agreements must repay the principal amount of the loan,

15. COMMITMENTS, GUARANTEES AND

15. COMMITMENTS, GUARANTEES AND CONTINGENCIES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
15. COMMITMENTS, GUARANTEES AND CONTINGENCIES	15. COMMITMENTS, GUARANTEES AND CONTINGENCIES (A) NUCLEAR INSURANCE The Price-Anderson Act limits the public liability which can be assessed with respect to a nuclear power plant to $12.6 billion (assuming 104 units licensed to operate) for a single nuclear incident, which amount is covered by: (i) private insurance amounting to $375 million; and (ii) $12.2 billion provided by an industry retrospective rating plan required by the NRC pursuant thereto. Under such retrospective rating plan, in the event of a nuclear incident at any unit in the United States resulting in losses in excess of private insurance, up to $118 million (but not more than $18 million per unit per year in the event of more than one incident) must be contributed for each nuclear unit licensed to operate in the country by the licensees thereof to cover liabilities arising out of the incident. Based on their present nuclear ownership and leasehold interests, FirstEnergys maximum potential assessment under these provisions would be $470 million (OE-$40 million, NGC-$408 million, and TE-$22 million) per incident but not more than $70 million (OE-$6 million, NGC-$61 million, and TE-$3 million) in any one year for each incident. In addition to the public liability insurance provided pursuant to the Price-Anderson Act, FirstEnergy has also obtained insurance coverage in limited amounts for economic loss and property damage arising out of nuclear incidents. FirstEnergy is a member of NEIL, which provides coverage (NEIL I) for the extra expense of replacement power incurred due to prolonged accidental outages of nuclear units. Under NEIL I, FirstEnergys subsidiaries have policies, renewable yearly, corresponding to their respective nuclear interests, which provide an aggregate indemnity of up to approximately $560 million (OE-$48 million, NGC-$486 million, TE-$26 million) for replacement power costs incurred during an outage after an initial 20-week waiting period. Members of NEIL I pay annual premiums and are subject to assessments if losses exceed the accumulated funds available to the insurer. FirstEnergys present maximum aggregate assessment for incidents at any covered nuclear facility occurring during a policy year would be approximately $3 million (NGC-$3 million). FirstEnergy is insured as to its respective nuclear interests under property damage insurance provided by NEIL to the operating company for each plant. Under these arrangements, up to $2.8 billion of coverage for decontamination costs, decommissioning costs, debris removal and repair and/or replacement of property is provided. FirstEnergy pays annual premiums for this coverage and is liable for retrospective assessments of up to approximately $60 million (OE-$6 million, NGC-$51 million, TE-$2 million, Met Ed, Penelec and JCPL-$1 million in total) during a policy year. FirstEnergy intends to maintain insurance against nuclear risks as described above as long as it is available. To the extent that replacement power, property damage, decontamination, decommissioning, repair and replacement costs and other such costs arising from a nuclear incident at any of FirstEnergys plants exceed t

16. SEGMENT INFORMATION

16. SEGMENT INFORMATION
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
16. SEGMENT INFORMATION	16.SEGMENT INFORMATION Financial information for each of FirstEnergys reportable segments is presented in the following table. FES and the Utilities do not have separate reportable operating segments. With the completion of transition to a fully competitive generation market in Ohio in 2009, the former Ohio Transitional Generation Services segment was combined with the Energy Delivery Services segment, consistent with how management views the business. Disclosures for FirstEnergys operating segments for 2008 and 2007 have been reclassified to conform to the 2009 presentation. The energy delivery services segment transmits and distributes electricity through our eight utility operating companies, serving 4.5 million customers within 36,100 square miles of Ohio, Pennsylvania and New Jersey and purchases power for its PLR and default service requirements in Ohio, Pennsylvania and New Jersey. Its revenues are primarily derived from the delivery of electricity within our service areas, cost recovery of regulatory assets and the sale of electric generation service to retail customers who have not selected an alternative supplier (default service) in its Ohio, Pennsylvania and New Jersey franchise areas. Its results reflect the commodity costs of securing electric generation from FES and from non-affiliated power suppliers, the net PJM and MISO transmission expenses related to the delivery of the respective generation loads, and the deferral and amortization of certain fuel costs. The competitive energy services segment supplies electric power to end-use customers through retail and wholesale arrangements, including associated company power sales to meet all or a portion of the PLR and default service requirements of FirstEnergy's Ohio and Pennsylvania utility subsidiaries and competitive retail sales to customers primarily in Ohio, Pennsylvania, Maryland and Michigan. This business segment owns or leases and operates 19 generating facilities with a net demonstrated capacity of 13,710 MWs and also purchases electricity to meet sales obligations. The segment's net income is primarily derived from affiliated and non-affiliated electric generation sales revenues less the related costs of electricity generation, including purchased power and net transmission (including congestion) and ancillary costs charged by PJM and MISO to deliver energy to the segments customers. The other segment contains corporate items and other businesses that are below the quantifiable threshold for separate disclosure as a reportable segment. Energy Competitive Delivery Energy Reconciling Segment Financial Information Services Services Other Adjustments Consolidated (In millions) 2009 External revenues $ 11,144 $ 1,888 $ 37 $ (119 ) $ 12,950 Internal revenues* - 2,843 - (2,826 ) 17 Total revenues 11,144 4,731 37 (2,945 ) 12,967 Depreciation and amortization 1,464 270 10 11 1,755 Investment income 139 121

17. NEW ACCOUNTING STANDARDS AN

17. NEW ACCOUNTING STANDARDS AND INTERPRETATIONS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
17. NEW ACCOUNTING STANDARDS AND INTERPRETATIONS	17. NEW ACCOUNTING STANDARDS AND INTERPRETATIONS In 2009, the FASB amended the derecognition guidance in the Transfers and Servicing Topic of the FASB Accounting Standards Codification and eliminated the concept of a QSPE. The amended guidance requires an evaluation of all existing QSPEs to determine whether they must be consolidated. This standard is effective for financial asset transfers that occur in fiscal years beginning after November 15, 2009. FirstEnergy does not expect this standard to have a material effect upon its financial statements. In 2009, the FASB amended the consolidation guidance applied to VIEs. This standard replaces the quantitative approach previously required to determine which entity has a controlling financial interest in a VIE with a qualitative approach. Under the new approach, the primary beneficiary of a VIE is the entity that has both (a) the power to direct the activities of the VIE that most significantly impact the entitys economic performance, and (b) the obligation to absorb losses of the entity, or the right to receive benefits from the entity, that could be significant to the VIE. This standard also requires ongoing reassessments of whether an entity is the primary beneficiary of a VIE and enhanced disclosures about an entitys involvement in VIEs. The standard is effective for fiscal years beginning after November 15, 2009. FirstEnergy is currently evaluating the impact of adopting this standard on its financial statements. In 2010, the FASB amended the Fair Value Measurements and Disclosures Topic of the FASB Accounting Standards Codification to require additional disclosures about 1) transfers of Level 1 and Level 2 fair value measurements, including the reason for transfers, 2) purchases, sales, issuances and settlements in the roll forward of activity in Level 3 fair value measurements, 3) additional disaggregation to include fair value measurement disclosures for each class of assets and liabilities and 4) disclosure of inputs and valuation techniques used to measure fair value for both recurring and nonrecurring fair value measurements.The amendment is effective for fiscal years beginning after December 15, 2009, except for the disclosures about purchases, sales, issuances and settlements in the roll forward of activity in Level 3 fair value measurements, which is effective for fiscal years beginning after December 15, 2010.FirstEnergy does not expect this standard to have a material effect upon its financial statements.

18. TRANSACTIONS WITH AFFILIATE

18. TRANSACTIONS WITH AFFILIATED COMPANIES
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
18. TRANSACTIONS WITH AFFILIATED COMPANIES	18. TRANSACTIONS WITH AFFILIATED COMPANIES FES and the Utilities operating revenues, operating expenses, investment income and interest expense include transactions with affiliated companies. These affiliated company transactions include PSAs between FES and the Utilities, support service billings from FESC and FENOC, interest on associated company notes and other transactions (see Note 7). The Ohio Companies had a PSA with FES through December 31, 2009 to meet their PLR and default service obligations. Met-Ed and Penelec have a partial requirement PSA with FES to meet a portion of their PLR and default service obligations (see Note 9). FES is incurring interest expense through FGCO and NGC on associated company notes payable to the Ohio Companies and Penn related to the 2005 intra-system generation asset transfers. The primary affiliated company transactions for FES and the Utilities for the three years ended December 31, 2009 are as follows: Affiliated Company Transactions - 2009 FES OE CEI TE JCPL Met-Ed Penelec (In millions) Revenues: Electric sales to affiliates $ 2,826 $ 187 $ - $ 35 $ - $ - $ - Ground lease with ATSI - 12 7 2 - - - Other* 17 - - - - - - Expenses: Purchased power from affiliates 222 991 735 393 - 365 342 Support services 563 140 60 55 85 52 53 Investment Income: Interest income from affiliates - 15 - 17 - - - Interest income from FirstEnergy 4 1 - - - - - Interest Expense: Interest expense to affiliates 6 5 17 - 4 3 2 Interest expense to FirstEnergy 4 - 1 1 - - 1 *Under the accounting standard for the effects of certain types of regulation, internal revenues are not fully offset for sales of RECs by FES to the Ohio Companies that are retained in inventory. Affiliated Company Transactions - 2008 FES OE CEI TE JCPL Met-Ed Penelec (In millions) Revenues: Electric sales to affiliates $ 2,968 $ 70 $ - $ 30 $ - $ - $ - Ground lease with ATSI - 12 7 2 - - - Expenses: Purchased power from affiliates 101 1,203 766 411 - 304 284 Support services 552 145 67 62 90 57 56 Investment Income:

19. SUPPLEMENTAL GUARANTOR INFO

19. SUPPLEMENTAL GUARANTOR INFORMATION
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
19. SUPPLEMENTAL GUARANTOR INFORMATION	19. SUPPLEMENTAL GUARANTOR INFORMATION As discussed, in Note7, FES has fully and unconditionally guaranteed all of FGCO's obligations under each of the leases associated with Bruce Mansfield Unit 1. The consolidating statements of income for the three years ended December31, 2009, consolidating balance sheets as of December31, 2009, and December31, 2008, and condensed consolidating statements of cash flows for the three years ended December31, 2009, for FES (parent and guarantor), FGCO and NGC (non-guarantor) are presented below. Investments in wholly owned subsidiaries are accounted for by FES using the equity method. Results of operations for FGCO and NGC are, therefore, reflected in FES investment accounts and earnings as if operating lease treatment was achieved (see Note7). The principal elimination entries eliminate investments in subsidiaries and intercompany balances and transactions and the entries required to reflect operating lease treatment associated with the 2007 Bruce Mansfield Unit1 sale and leaseback transaction. FIRSTENERGY SOLUTIONS CORP. CONDENSED CONSOLIDATING STATEMENTS OF INCOME For the Year Ended December 31, 2009 FES FGCO NGC Eliminations Consolidated (In thousands) REVENUES $ 4,390,111 $ 2,216,237 $ 1,360,522 $ (3,238,533 ) $ 4,728,337 EXPENSES: Fuel 18,416 971,021 138,026 - 1,127,463 Purchased power from affiliates 3,220,197 18,336 222,406 (3,238,533 ) 222,406 Purchased power from non-affiliates 996,383 - - - 996,383 Other operating expenses 220,660 395,330 518,473 48,762 1,183,225 Provision for depreciation 4,147 121,007 139,488 (5,249 ) 259,393 General taxes 18,214 44,075 24,626 - 86,915 Total expenses 4,478,017 1,549,769 1,043,019 (3,195,020 ) 3,875,785 OPERATING INCOME (87,906 ) 666,468 317,503 (43,513 ) 852,552 OTHER INCOME (EXPENSE): Investment income 5,297 683 119,246 - 125,226 Miscellaneous income (expense), including net income from equity investees 656,451 (3,931 ) 61 (645,911 ) 6,670 Interest expense to affiliates (135 ) (5,619 ) (4,352 ) - (10,106 ) Interest expense - other (44,837 ) (99,802 ) (62,034 ) 64,553 (142,120 ) Capitalized interest 212 49,577 10,363 - 60,152 Total other income (expense) 616,988 (59,092 ) 63,284 (581,358 ) 39,822 INCOME BEFORE INCOME TAXES 529,082 607,376 380,787 (624,871 ) 892,374 INCOME TAXES (48,002

20. SUMMARY OF QUARTERLY FINANC

20. SUMMARY OF QUARTERLY FINANCIAL DATA (UNAUDITED)
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
20. SUMMARY OF QUARTERLY FINANCIAL DATA (UNAUDITED)	20. SUMMARY OF QUARTERLY FINANCIAL DATA (UNAUDITED) The following summarizes certain consolidated operating results by quarter for 2009 and 2008. Operating Income (Loss) Before Income Earnings Income Income Taxes Available To Three Months Ended Revenues (Loss) Taxes (Benefit) FirstEnergy (In millions) FE March 31, 2009 $ 3,334.0 $ 346.0 $ 169.0 $ 54.0 $ 119.0 March 31, 2008 3,277.0 618.0 464.0 187.0 276.0 June 30, 2009 3,271.0 802.0 656.0 248.0 414.0 June 30, 2008 3,245.0 582.0 423.0 160.0 263.0 September 30,2009 3,408.0 487.0 358.0 128.0 234.0 September 30,2008 3,904.0 846.0 709.0 238.0 471.0 December 31, 2009 2,954.0 244.0 52.0 (185.0 ) 239.0 December 31, 2008 3,201.0 713.0 520.0 192.0 332.0 FES March 31, 2009 $ 1,226.1 $ 304.3 $ 262.5 $ 91.8 $ 170.7 March 31, 2008 1,099.1 175.7 147.8 57.8 90.0 June 30, 2009 1,341.2 468.9 466.6 169.2 297.4 June 30, 2008 1,071.3 142.2 115.4 47.3 68.1 September 30,2009 1,104.6 175.7 310.8 111.2 199.7 September 30,2008 1,241.6 288.8 278.9 93.2 185.7 December 31, 2009 1,056.4 (96.3 ) (147.5 ) (56.9 ) (90.7 ) December 31, 2008 1,106.4 311.6 257.5 94.9 162.6 OE March 31, 2009 $ 749.0 $ 30.2 $ 15.7 $ 4.0 $ 11.5 March 31, 2008 652.6 77.1 70.9 26.9 43.9 June 30, 2009 672.2 58.8 50.5 16.9 33.5 June 30, 2008 609.6 76.1 70.7 21.7 48.8 September 30,2009 602.5 52.8 50.6 15.9 34.6 September 30,2008 702.3 100.0 101.1 28.5 72.5 December 31, 2009 * 493.2 87.1 71.8 29.4 42.3 December 31, 2008 637.3 80.8 68.2 21.5 46.5 CEI March 31, 2009 $ 449.7 $ (144.1 ) $ (166.9 ) $ (61.5 ) $ (105.9 ) March 31, 2008 437.3 110.8 88.8 30.3 57.9 June 30, 2009 475.1 98.5 74.2 26.5 47.3 June 30, 2008 434.4 123.4 100.8 33.8 66.6 September 30,2009 435.5 61.6 35.1 9.8 25.0 September 30,2008 524.1 159.9 136.8 43.0 93.4 December 31, 2009 315.8 64.7 36.4 15.0 20.9 December 31, 2008 420.1 120.5 96.9 29.7 66.6 * Includes a $4.8 million adjustment that increased net inco

21. SUBSEQUENT EVENT

21. SUBSEQUENT EVENT
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
21. SUBSEQUENT EVENT	21. SUBSEQUENT EVENTS On February 11, 2010, FirstEnergy and Allegheny Energy, Inc. (Allegheny) announced that both companies' boards of directors unanimously approved a definitive agreement in which the companies would combine in a stock-for-stock transaction. Under the terms of the agreement, Allegheny shareholders would receive 0.667 of a share of FirstEnergy common stock in exchange for each share of Allegheny they own. Based on the closing stock prices for both companies on February 10, 2010, Allegheny shareholders would receive a value of $27.65 per share, or $4.7 billion in the aggregate. FirstEnergy would also assume approximately $3.8 billion of Allegheny net debt. The merger is conditioned upon, among other things, the approval of the shareholders of both companies, as well as expiration or termination of any applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 and approval by the FERC, the Maryland Public Service Commission, the PPUC, the Virginia State Corporation Commission and the West Virginia Public Service Commission. The merger is also conditioned on effectiveness at the SEC of FirstEnergys registration statement with respect to the shares to be issued in the transaction. The companies anticipate that the necessary approvals may be obtained within 12-14 months. On February 11, 2010, SP issued a report lowering FirstEnergys and its subsidiaries credit ratings by one notch, while maintaining its stable outlook. As a result, FirstEnergy may be required to post up to $48 million of collateral (see Note 15(B)). Moody's and Fitch affirmed the ratings and stable outlook of FirstEnergy and its subsidiaries on February 11, 2010. These rating agency actions were taken in response to the announcement of the proposed merger with Allegheny.

CONSOLIDATED VALUATION AND QUAL

CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS
	12 Months Ended Dec. 31, 2009 USD / shares
Notes to Financial Statements [Abstract]
CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS	SCHEDULE II FIRSTENERGY CORP. CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS FOR THE YEARS ENDED DECEMBER 31, 2009, 2008 AND 2007 Additions Charged Beginning Charged to Other Ending Description Balance to Income Accounts Deductions Balance (In thousands) Year Ended December 31, 2009: Accumulated provision for uncollectible accounts customers $ 27,847 $ 67,503 $ 32,975 (a) $ 94,894 (b) $ 33,431 other $ 9,167 $ (405 ) $ 10,457 (a) $ 12,250 (b) $ 6,969 Loss carryforward tax valuation reserve $ 27,294 $ (1,091 ) $ (4,921 ) $ - $ 21,282 Year Ended December 31, 2008: Accumulated provision for uncollectible accounts customers $ 35,567 $ 48,297 $ 31,308 (a) $ 87,325 (b) $ 27,847 other $ 21,924 $ 11,339 $ 3,189 (a) $ 27,285 (b) $ 9,167 Loss carryforward tax valuation reserve $ 30,616 $ 1,435 $ (4,757 ) $ - $ 27,294 Year Ended December 31, 2007: Accumulated provision for uncollectible accounts customers $ 43,214 $ 53,522 $ 50,165 (a) $ 111,334 (b) $ 35,567 other $ 23,964 $ 4,933 $ 406 (a) $ 7,379 (b) $ 21,924 Loss carryforward tax valuation reserve $ 415,531 $ 8,819 $ (393,734 ) $ - $ 30,616 (a)Represents recoveries and reinstatements of accounts previously written off. (b)Represents the write-off of accounts considered to be uncollectible.

Document Information

Document Information
	12 Months Ended Dec. 31, 2009 USD / shares
Document Information [Text Block]
Document Type	10-K
Document Period End Date	2009-12-31
Amendment Flag	false

Entity Information

Entity Information (USD $)
	12 Months Ended Dec. 31, 2009
Entity [Text Block]
Entity Registrant Name	FirstEnergy Corp.
Entity Central Index Key	0001031296
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float	$14,122,584,651
Entity Common Stock Shares Outstanding	304,835,407