Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Property, plant and equipment
Utility plant, at original costs	$ 13,818	$ 12,590
Accumulated depreciation	(3,712)	(3,472)
Utility plant, net	10,106	9,118
Other property	14	13
Total property, plant and equipment, net	10,120	9,131
Current assets
Cash and cash equivalents	10	14
Receivables, less allowance for credit losses of $7 and $2 at December 31, 2020 and 2019, respectively	219	206
Due from affiliates	11	14
Inventories, at average cost
Regulatory assets	79	41
Prepayments and other current assets	10	10
Total current assets	462	425
Deferred debits
Regulatory assets	406	396
Other	60	55
Total deferred debits	466	451
Total assets	11,048	10,007
Capitalization
Common stock	3,890	3,385
Accumulated other comprehensive loss	(1)	(1)
Retained earnings	327	311
Total capital	4,216	3,695
Long-term debt	2,594	2,869
Total capital	6,810	6,564
Current liabilities
Long-term debt due within one year	278	0
Notes payable	775	348
Accounts payable	321	296
Due to affiliates	46	20
Customer deposits	130	132
Regulatory liabilities	67	93
Accrued interest	13	13
Accrued taxes	22	14
Other	57	44
Total current liabilities	1,709	960
Long-term liabilities
Deferred income taxes	783	758
Regulatory liabilities	1,194	1,210
Investment tax credits	216	164
Deferred credits and other liabilities	336	351
Total deferred credits	2,529	2,483
Commitments and Contingencies (see Note 8)
Total liabilities and capital	11,048	10,007
Fuel [Member]
Inventories, at average cost
Utility inventories	26	36
Materials and Supplies [Member]
Inventories, at average cost
Utility inventories	107	104
Electric [Member]
Property, plant and equipment
Utility plant, at original costs	11,486	10,578
Gas [Member]
Property, plant and equipment
Utility plant, at original costs	$ 2,332	$ 2,012