Consolidated Statements of Financial Position (Unaudited) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 20	$ 30
Restricted cash, principally Securitization	90	102
Accounts receivable (less allowance for doubtful accounts of $31 and $35, respectively)
Customer	789	697
Affiliates	1	5
Other	50	63
Inventories
Fuel and gas	198	246
Materials and supplies	199	193
Notes receivable	2	2
Regulatory assets	80	162
Other	60	77
Total Current Assets	1,489	1,577
Investments
Nuclear decommissioning trust funds	1,080	1,037
Other	142	133
Total Investments	1,222	1,170
Property
Property, plant and equipment	18,167	17,689
Less accumulated depreciation and amortization	(6,887)	(6,717)
Property, plant and equipment, net	11,280	10,972
Other Assets
Regulatory assets	2,999	3,348
Securitized regulatory assets	326	413
Intangible assets	37	30
Notes receivable	4	3
Other	144	138
Total Noncurrent Assets	3,510	3,932
Total Assets	17,501	17,651
Accounts payable
Affiliates	56	52
Other	350	350
Accrued interest	62	61
Current portion long-term debt, including capital leases	484	443
Regulatory liabilities	144	66
Short-term borrowings
Affiliates	59	80
Other	96	130
Other	164	166
Total Current Liabilities	1,415	1,348
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other	4,500	4,221
Securitization bonds	201	302
Capital lease obligations	1	1
Total Long-Term Debt (net of current portion)	4,702	4,524
Other Liabilities
Deferred income taxes	2,808	2,761
Regulatory liabilities	424	483
Asset retirement obligations	1,618	1,557
Unamortized investment tax credit	45	49
Nuclear decommissioning	164	159
Accrued pension liability — affiliates	1,233	1,368
Accrued postretirement liability — affiliates	649	996
Other	104	103
Total Noncurrent Liabilities	7,045	7,476
Shareholder’s Equity
Common stock, $10 par value, 400,000,000 shares authorized, and 138,632,324 shares issued and outstanding	3,196	3,196
Retained earnings	1,164	1,129
Accumulated other comprehensive loss	(21)	(22)
Total Shareholder's Equity	4,339	4,303
Total Liabilities and Shareholder's Equity	$ 17,501	$ 17,651