CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Assets
Utility Plant In Service	$ 11,972	$ 11,714
Accumulated Depreciation and Amortization	(3,804)	(3,495)
Construction Work in Progress	1,405	1,081
Nuclear Fuel, Net of Accumulated Amortization	120	132
Goodwill, net of accumulated amortization and writedown of $276	230	230
Utility Plant, Net	9,923	9,662
Nonutility Property and Investments:
Nonutility property, net of accumulated depreciation of $129 and $118	303	299
Assets held in trust, net-nuclear decommissioning	80	76
Other investments	89	78
Nonutility Property and Investments, Net	472	453
Current Assets:
Cash and cash equivalents	74	55
Receivables, net of allowance for uncollectible accounts of $5 and $9	631	837
Inventories (at average cost):
Fuel and gas supply	277	316
Materials and supplies	129	125
Emission allowances	3	6
Prepayments and other	176	251
Derivative collateral posted	110	20
Deferred income taxes	21	21
Total Current Assets	1,421	1,631
Deferred Debits and Other Assets:
Regulatory assets	1,192	1,061
Other	162	161
Total Deferred Debits and Other Assets	1,354	1,222
Total	13,170	12,968
Capitalization and Liabilities
Common Equity	3,838	3,702
Long-Term Debt, net	4,376	4,152
Total Capitalization	8,214	7,854
Current Liabilities:
Short-term borrowings	581	420
Current portion of long-term debt	285	337
Accounts payable	296	526
Customer deposits and customer prepayments	95	100
Taxes accrued	125	146
Interest accrued	71	72
Dividends declared	63	61
Derivative financial instruments	59	65
Other	111	140
Total Current Liabilities	1,686	1,867
Deferred Credits and Other Liabilities:
Deferred income taxes, net	1,465	1,391
Deferred investment tax credits	41	56
Asset retirement obligations	516	497
Other postretirement benefits	208	202
Regulatory liabilities	778	913
Other	262	188
Total Deferred Credits and Other Liabilities	3,270	3,247
Commitments and Contingencies (Note 9)
Total	$ 13,170	$ 12,968