Condensed Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Property, plant and equipment
Utility plant, at original costs	$ 14,749	$ 14,433
Accumulated depreciation	(3,432)	(3,348)
Utility plant, net	11,317	11,085
Other property	19	18
Total property, plant and equipment, net	11,336	11,103
Current assets
Cash and cash equivalents	8	4
Receivables, less allowance for credit losses of $1 and $1 at March 31, 2025 and December 31, 2024, respectively	228	220
Inventories, at average cost
Regulatory assets	411	343
Prepayments and other current assets	29	32
Total current assets	941	848
Other assets
Regulatory assets	1,020	1,098
Other	65	58
Total other assets	1,085	1,156
Total assets	13,362	13,107
Capitalization
Common stock	5,255	5,105
Accumulated other comprehensive loss	(1)	(1)
Retained earnings	248	218
Total capital	5,502	5,322
Long-term debt	4,529	3,935
Total capitalization	10,031	9,257
Current liabilities
Notes payable	158	636
Accounts payable	604	666
Customer deposits	126	126
Regulatory liabilities	129	146
Accrued interest	46	31
Accrued taxes	34	12
Other	69	58
Total current liabilities	1,175	1,693
Long-term liabilities
Deferred income taxes	984	976
Regulatory liabilities	730	758
Investment tax credits	230	224
Deferred credits and other liabilities	212	199
Total long-term liabilities	2,156	2,157
Commitments and Contingencies (see Note 8)
Total liabilities and capitalization	13,362	13,107
Related Party [Member]
Current assets
Due from affiliates	24	13
Current liabilities
Due to affiliates	9	18
Fuel [Member]
Inventories, at average cost
Utility inventories	40	45
Materials and Supplies [Member]
Inventories, at average cost
Utility inventories	$ 201	$ 191