CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 4	$ 0
Accounts receivable, less bad debt reserve of $24 and $19, respectively	353	350
Accrued unbilled revenues	122	183
Accounts and notes receivable–affiliated companies	34	8
Materials and supplies	46	45
Natural gas inventory	58	168
Non-trading derivative assets	75	89
Prepaid expenses and other current assets	49	61
Total current assets	741	904
Property, Plant and Equipment:
Property, plant and equipment	5,965	5,898
Less: accumulated depreciation and amortization	1,643	1,640
Property, plant and equipment, net	4,322	4,258
Other Assets:
Goodwill	840	840
Non-trading derivative assets	28	36
Notes receivable–unconsolidated affiliate	0	363
Investment in unconsolidated affiliate	2,580	2,594
Other	143	146
Total other assets	3,591	3,979
Total Assets	8,654	9,141
Current Liabilities:
Short-term borrowings	0	40
Current portion of long-term debt	325	325
Accounts payable	233	307
Accounts and notes payable–affiliated companies	35	39
Taxes accrued	63	63
Interest accrued	39	36
Customer deposits	81	80
Non-trading derivative liabilities	8	11
Other	131	158
Total current liabilities	915	1,059
Other Liabilities:
Deferred income taxes, net	1,845	1,774
Non-trading derivative liabilities	3	5
Benefit obligations	88	89
Regulatory liabilities	779	734
Other	213	210
Total other liabilities	2,928	2,812
Long-Term Debt	$ 1,800	$ 2,016
Commitments and Contingencies (Note 10)
Stockholder’s Equity:
Common stock	$ 0	$ 0
Paid-in capital	2,417	2,417
Retained earnings	585	828
Accumulated other comprehensive income	9	9
Total stockholder’s equity	3,011	3,254
Total Liabilities and Stockholder’s Equity	$ 8,654	$ 9,141