Consolidated Condensed Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Property, plant and equipment
Utility plant, at original costs	$ 10,878	$ 10,427
Construction work in progress	524	263
Accumulated depreciation	(3,108)	(2,994)
Utility plant, net	7,770	7,433
Other property	12	11
Total property, plant and equipment, net	7,782	7,444
Current assets
Cash and cash equivalents	15	13
Receivables, less allowance for uncollectibles of $1 at June 30, 2018 and December 31, 2017	251	257
Due from affiliates	17	5
Inventories, at average cost
Regulatory assets	45	77
Prepayments and other current assets	15	13
Total current assets	488	515
Deferred debits
Regulatory assets	347	356
Other	47	49
Total deferred debits	394	405
Total assets	8,664	8,364
Capitalization
Common stock	2,860	2,645
Accumulated other comprehensive loss	(1)	(2)
Retained earnings	323	335
Total capital	3,182	2,978
Long-term debt	2,205	1,860
Total capitalization	5,387	4,838
Current liabilities
Long-term debt due within one year	0	304
Notes payable	375	305
Accounts payable	218	233
Due to affiliates	15	21
Customer deposits	131	131
Regulatory liabilities	61	58
Accrued interest	14	14
Accrued taxes	50	12
Other	17	44
Total current liabilities	881	1,122
Long-term liabilities
Deferred income taxes	855	825
Regulatory liabilities	1,205	1,227
Deferred credits and other liabilities	336	352
Total long-term liabilities	2,396	2,404
Commitments and Contingencies (see Note 8)
Total liabilities and capitalization	8,664	8,364
Fuel [Member]
Inventories, at average cost
Utility inventories	48	60
Materials and Supplies [Member]
Inventories, at average cost
Utility inventories	97	90
Electric [Member]
Property, plant and equipment
Utility plant, at original costs	8,682	8,555
Gas [Member]
Property, plant and equipment
Utility plant, at original costs	$ 1,672	$ 1,609