Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 0	$ 0
Accounts and note receivable
Customer, net of allowance	13	24
Affiliates	75	378
Other	51	51
Materials and supplies	56	44
Deferred income taxes	72	43
Other	15	5
Total current assets	282	545
Property, plant and equipment, at cost	5,356	4,951
Less accumulated depreciation and amortization	995	1,056
Property, plant and equipment before additional acquisition cost assigned to utility plant	4,361	3,895
Additional acquisition cost assigned to utility plant, net	1,893	1,923
Total property, plant and equipment, net	6,254	5,818
Other long-term assets
Note receivable from affiliate	650	617
Investment in unconsolidated affiliate	58	56
Other	82	76
Total other long-term assets	790	749
Total assets	7,326	7,112
Accounts payable
Trade	51	90
Affiliates	34	38
Other	97	57
Current maturities of long-term debt	86	86
Taxes payable	72	23
Contractual deposits	33	28
Asset retirement obligations	25	28
Accrued interest	47	33
Accrued liabilities	55	13
Regulatory liabilities	60	78
Other	13	25
Total current liabilities	573	499
Long-term debt, less current maturities	1,768	1,765
Other long-term liabilities
Deferred income taxes	1,473	1,422
Regulatory liabilities	56	90
Other	30	35
Total other long-term liabilities	1,559	1,547
Commitments and contingencies (Note 4)
Stockholder's equity
Common stock, par value $5 per share; 300 shares authorized; 208 shares issued and outstanding	0	0
Additional paid-in capital	2,209	2,209
Retained earnings	1,217	1,092
Total stockholder's equity	3,426	3,301
Total liabilities and stockholder's equity	$ 7,326	$ 7,112