Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 248	$ 588
Restricted cash	51	51
Receivables-
Customers, net of allowance for uncollectible accounts of $50 in 2018 and $49 in 2017	1,279	1,282
Other, net of allowance for uncollectible accounts of $1 in 2018 and 2017	159	170
Materials and supplies, at average cost	273	262
Prepaid taxes and other	254	151
Current assets - discontinued operations	2	606
Total current assets	2,310	3,110
PROPERTY, PLANT AND EQUIPMENT:
In service	37,717	37,270
Less — Accumulated provision for depreciation	10,267	10,098
Property, plant and equipment in service net of accumulated provision for depreciation	27,450	27,172
Construction work in progress	1,120	1,004
Total net property, plant and equipment	28,570	28,176
PROPERTY, PLANT AND EQUIPMENT, NET - DISCONTINUED OPERATIONS	353	1,057
INVESTMENTS:
Nuclear plant decommissioning trusts	800	822
Nuclear fuel disposal trust	251	251
Other	252	255
Investments - discontinued operations	0	1,875
Total other property and investments	1,303	3,203
DEFERRED CHARGES AND OTHER ASSETS:
Goodwill	5,618	5,618
Regulatory assets	49	40
Other	592	697
Deferred charges and other assets - discontinued operations	0	356
Total deferred charges and other assets	6,259	6,711
Total assets	38,795	42,257
CURRENT LIABILITIES:
Currently payable long-term debt	1,157	558
Short-term borrowings	1,200	300
Accounts payable	1,005	827
Accrued taxes	530	533
Accrued compensation and benefits	254	257
Collateral	37	39
Other	882	626
Current liabilities - discontinued operations	0	973
Total current liabilities	5,065	4,113
Stockholders’ equity-
Common stock, $0.10 par value, authorized 700,000,000 shares - 476,909,318 and 445,334,111 shares outstanding as of March 31, 2018 and December 31, 2017, respectively	48	44
Mandatorily convertible preferred stock, $100 par value, authorized 5,000,000 shares - 1,616,000 shares issued and outstanding as of March 31, 2018	162	0
Other paid-in capital	11,937	10,001
Accumulated other comprehensive income	86	142
Accumulated deficit	(4,858)	(6,262)
Total stockholders’ equity	7,375	3,925
Long-term debt and other long-term obligations	16,740	18,816
Total capitalization	24,115	22,741
NONCURRENT LIABILITIES:
Accumulated deferred income taxes	2,505	3,171
Retirement benefits	2,717	3,975
Regulatory liabilities	2,632	2,720
Asset retirement obligations	580	570
Adverse power contract liability	124	130
Other	1,057	1,438
Noncurrent liabilities - discontinued operations	0	3,399
Total noncurrent liabilities	9,615	15,403
COMMITMENTS, GUARANTEES AND CONTINGENCIES (Note 11)
Total liabilities and capitalization	38,795	42,257
Affiliated Companies
Receivables-
Customers, net of allowance for uncollectible accounts of $50 in 2018 and $49 in 2017	$ 44	$ 0