CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 1	$ 0
Accounts receivable, less bad debt reserve of $23 and $19, respectively	305	350
Accrued unbilled revenues	65	183
Accounts and notes receivable–affiliated companies	12	8
Materials and supplies	50	45
Natural gas inventory	96	168
Non-trading derivative assets	47	89
Prepaid expenses and other current assets	66	61
Total current assets	642	904
Property, Plant and Equipment:
Property, plant and equipment	6,103	5,898
Less: accumulated depreciation and amortization	1,716	1,640
Property, plant and equipment, net	4,387	4,258
Other Assets:
Goodwill	861	840
Non-trading derivative assets	22	36
Notes receivable–unconsolidated affiliate	0	363
Investment in unconsolidated affiliate	2,536	2,594
Other	180	146
Total other assets	3,599	3,979
Total Assets	8,628	9,141
Current Liabilities:
Short-term borrowings	17	40
Current portion of long-term debt	0	325
Accounts payable	259	307
Accounts and notes payable–affiliated companies	35	39
Taxes accrued	46	63
Interest accrued	32	36
Customer deposits	80	80
Non-trading derivative liabilities	17	11
Other	144	158
Total current liabilities	630	1,059
Other Liabilities:
Deferred income taxes, net	1,854	1,774
Non-trading derivative liabilities	6	5
Benefit obligations	94	89
Regulatory liabilities	764	734
Other	214	210
Total other liabilities	2,932	2,812
Long-Term Debt	1,978	2,016
Commitments and Contingencies (Note 11)
Stockholder’s Equity:
Common stock	0	0
Paid-in capital	2,489	2,417
Retained earnings	591	828
Accumulated other comprehensive income	8	9
Total stockholder’s equity	3,088	3,254
Total Liabilities and Stockholder’s Equity	$ 8,628	$ 9,141