Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 0	$ 0
Accounts and note receivable
Customer, net of allowance	7	24
Affiliates	346	378
Other	57	51
Materials and supplies	56	44
Deferred income taxes	54	43
Other	7	5
Total current assets	527	545
Property, plant and equipment, at cost	5,060	4,951
Less accumulated depreciation and amortization	964	1,056
Property, plant and equipment before additional acquisition cost assigned to utility plant	4,096	3,895
Additional acquisition cost assigned to utility plant, net	1,903	1,923
Total property, plant and equipment, net	5,999	5,818
Other non-current assets
Note receivable from affiliate	545	617
Investment in unconsolidated affiliate	58	56
Other	80	76
Total other non-current assets	683	749
Total assets	7,209	7,112
Accounts payable
Trade	64	90
Affiliates	35	38
Other	81	57
Current maturities of long-term debt	86	86
Taxes payable	44	23
Contractual deposits	29	28
Asset retirement obligations	28	28
Accrued interest	33	33
Regulatory liabilities	78	78
Other	49	38
Total current liabilities	527	499
Long-term debt, less current maturities	1,767	1,765
Other non-current liabilities
Deferred income taxes	1,452	1,422
Regulatory liabilities	57	90
Other	30	35
Total other non-current liabilities	1,539	1,547
Commitments and contingencies (Note 3)
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	1,167	1,092
Total stockholder's equity	3,376	3,301
Total liabilities and stockholder's equity	$ 7,209	$ 7,112