CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 11	$ 6
Accounts receivable, net	90	89
Accrued unbilled revenues	53	63
Inventories	24	29
Regulatory assets	23	24
Prepaid taxes	21	28
Prepayments and other	7	6
Total current assets	229	245
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, net	3,332	3,237
Other assets
Regulatory assets	181	185
Other	3	3
Total other assets	184	188
Total assets	3,745	3,670
Current liabilities
Current portion of long-term debt	200	200
Short-term debt	0	60
Borrowings under utility money pool arrangement	19	0
Dividends payable to parent	18	25
Regulatory liabilities	41	42
Taxes accrued	19	16
Accrued interest	13	13
Other	24	23
Total current liabilities	415	464
Deferred credits and other liabilities
Deferred income taxes	336	330
Deferred investment tax credits	5	5
Regulatory liabilities	412	407
Customer advances	26	25
Pension and employee benefit obligations	20	27
Other	34	35
Total deferred credits and other liabilities	833	829
Commitments and contingencies
Capitalization
Long-term debt	1,011	1,011
Common stock — 1,000,000 shares authorized of $100 par value; 933,000 shares outstanding at March 31, 2024 and Dec. 31, 2023, respectively	$ 93	$ 93
Common stock, shares authorized (in shares)	1,000,000	1,000,000
Common stock, par value (in dollars per share)	$ 100	$ 100
Common stock, shares outstanding (in shares)	933,000	933,000
Additional paid in capital	$ 938	$ 843
Retained earnings	455	430
Total common stockholder's equity	1,486	1,366
Total liabilities and equity	3,745	3,670
Related Party
Current liabilities
Accounts payable	61	64
Affiliated Entity
Current liabilities
Accounts payable	$ 20	$ 21