Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 0	$ 0
Accounts and notes receivable
Customer, net of allowance of $2 in 2011 and 2010	2	4
Affiliates	3	6
Other	23	20
Materials and supplies	48	48
Deferred income taxes	1	9
Prepaids	7	15
Regulatory assets	15	8
Other	2	3
Total current assets	101	113
Property, plant and equipment, at cost	4,007	3,970
Less accumulated depreciation and amortization	1,524	1,484
Total property, plant and equipment, net	2,483	2,486
Other non-current assets
Note receivable from affiliate	908	836
Other	111	110
Total other non-current assets	1,019	946
Total assets	3,603	3,545
Accounts payable
Trade	85	82
Affiliates	14	25
Other	11	11
Taxes payable	59	28
Accrued interest	19	18
Accrued liabilities	4	24
Regulatory liabilities	25	7
Other	18	20
Total current liabilities	235	215
Long-term debt	1,113	1,113
Other non-current liabilities
Deferred income taxes	402	408
Other	104	75
Total other non-current liabilities	506	483
Commitments and contingencies (Note 3)
Stockholder's equity
Common stock, par value $1 per share; 1,000 shares authorized, issued and outstanding	0	0
Additional paid-in capital	1,268	1,268
Retained earnings	481	466
Total stockholder's equity	1,749	1,734
Total liabilities and stockholder's equity	$ 3,603	$ 3,545