Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Property, plant and equipment
Utility plant, at original costs	$ 11,438	$ 10,427
Accumulated depreciation	(3,214)	(2,994)
Utility plant, net	8,224	7,433
Other property	12	11
Total property, plant and equipment, net	8,236	7,444
Current assets
Cash and cash equivalents	15	13
Receivables, less allowance for uncollectibles of $2 and $1 at December 31, 2018 and 2017, respectively	258	257
Due from affiliates	4	5
Inventories, at average cost
Regulatory assets	88	77
Prepayments and other current assets	6	13
Total current assets	517	515
Deferred debits
Regulatory assets	370	356
Other	32	49
Total deferred debits	402	405
Total assets	9,155	8,364
Capitalization
Common stock	2,990	2,645
Accumulated other comprehensive loss	(1)	(2)
Retained earnings	314	335
Total capital	3,303	2,978
Long-term debt, less amount due within one year	2,575	1,860
Total capital	5,878	4,838
Current liabilities
Long-term debt due within one year	0	304
Notes payable	221	305
Accounts payable	251	233
Due to affiliates	24	21
Customer deposits	132	131
Regulatory liabilities	44	58
Accrued interest	16	14
Accrued taxes	13	12
Other	84	44
Total current liabilities	785	1,122
Long-term liabilities
Deferred income taxes	799	825
Regulatory liabilities	1,266	1,227
Deferred credits and other liabilities	427	352
Total deferred credits	2,492	2,404
Commitments and Contingencies (see Note 8)
Total liabilities and capital	9,155	8,364
Fuel [Member]
Inventories, at average cost
Utility inventories	46	60
Materials and Supplies [Member]
Inventories, at average cost
Utility inventories	100	90
Electric [Member]
Property, plant and equipment
Utility plant, at original costs	9,645	8,794
Gas [Member]
Property, plant and equipment
Utility plant, at original costs	$ 1,793	$ 1,633