CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 7	$ 1
Accounts receivable, net	389	542
Accrued unbilled revenue	78	253
Accounts and notes receivable - affiliated companies	15	17
Materials and supplies	91	86
Inventory	170	187
Non-trading derivative assets	41	87
Taxes receivable	2	1
Deferred income tax assets	7	8
Prepaid expenses and other current assets	168	122
Total current assets	968	1,304
Property, Plant and Equipment:
Property, plant and equipment	9,420	8,519
Less accumulated depreciation and amortization	1,657	1,489
Property, plant and equipment, net	7,763	7,030
Other Assets:
Goodwill	1,468	1,696
Non-trading derivative assets	10	20
Investment in unconsolidated affiliates	408	472
Other	185	165
Total other assets	2,071	2,353
Total Assets	10,802	10,687
Current Liabilities:
Short-term borrowings	53	62
Current portion of long-term debt	365	0
Accounts payable	272	427
Accounts and notes payable — affiliated companies	725	419
Taxes accrued	96	82
Interest accrued	57	48
Customer deposits	77	74
Non-trading derivative liabilities	20	46
Other	142	157
Total current liabilities	1,807	1,315
Other Liabilities:
Accumulated deferred income taxes, net	1,621	1,420
Non-trading derivative liabilities	6	6
Benefit obligations	108	108
Regulatory liabilities	622	597
Other	241	232
Total other liabilities	2,598	2,363
Long-term Debt	2,274	2,919
Commitments and Contingencies (Note 10)
Stockholder’s Equity:
Common stock	0	0
Paid-in capital	2,416	2,416
Retained earnings	1,714	1,681
Accumulated other comprehensive loss	(7)	(7)
Total stockholder’s equity	4,123	4,090
Total Liabilities and Stockholder's Equity	$ 10,802	$ 10,687