Consolidated Balance Sheets (FirstEnergy Corp.) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 146	$ 131
Receivables-
Customers, net of allowance for uncollectible accounts of $64 in 2016 and $69 in 2015	1,432	1,415
Other, net of allowance for uncollectible accounts of $5 in 2016 and 2015	162	180
Materials and supplies	781	785
Prepaid taxes	267	135
Derivatives	207	157
Collateral	80	70
Other	155	167
Total current assets	3,230	3,040
PROPERTY, PLANT AND EQUIPMENT:
In service	50,371	49,952
Less - Accumulated provision for depreciation	15,421	15,160
Property, plant and equipment in service net of accumulated provision for depreciation	34,950	34,792
Construction work in progress	2,694	2,422
Total net property, plant and equipment	37,644	37,214
INVESTMENTS:
Nuclear plant decommissioning trusts	2,360	2,282
Other	526	506
Total other property and investments	2,886	2,788
DEFERRED CHARGES AND OTHER ASSETS:
Goodwill	6,418	6,418
Regulatory assets	1,279	1,348
Other	1,238	1,286
Total deferred charges and other assets	8,935	9,052
Total assets	52,695	52,094
CURRENT LIABILITIES:
Currently payable long-term debt	1,355	1,166
Short-term borrowings	2,125	1,708
Accounts payable	1,000	1,075
Accrued taxes	513	519
Accrued compensation and benefits	309	334
Derivatives	117	106
Other	970	694
Total current liabilities	6,389	5,602
Common stockholders' equity-
Common stock, $0.10 par value, authorized 490,000,000 shares - 424,712,431 and 423,560,397 shares outstanding as of March 31, 2016 and December 31, 2015, respectively	42	42
Other paid-in capital	9,963	9,952
Accumulated other comprehensive income	179	171
Retained earnings	2,279	2,256
Total common stockholders' equity	12,463	12,421
Noncontrolling interest	1	1
Total equity	12,464	12,422
Long-term debt and other long-term obligations	18,878	19,099
Total capitalization	31,342	31,521
NONCURRENT LIABILITIES:
Accumulated deferred income taxes	6,996	6,773
Retirement benefits	4,135	4,245
Asset retirement obligations	1,427	1,410
Deferred gain on sale and leaseback transaction	782	791
Adverse power contract liability	194	197
Other	1,430	1,555
Total noncurrent liabilities	$ 14,964	$ 14,971
COMMITMENTS, GUARANTEES AND CONTINGENCIES
Total liabilities and capitalization	$ 52,695	$ 52,094