CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 200	$ 6
Accounts receivable, net	79	89
Accrued unbilled revenues	58	63
Inventories	25	29
Regulatory assets	23	24
Prepaid taxes	29	28
Prepayments and other	6	6
Total current assets	420	245
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, net	3,439	3,237
Other assets
Regulatory assets	176	185
Other	3	3
Total other assets	179	188
Total assets	4,038	3,670
Current liabilities
Current portion of long-term debt	0	200
Short-term debt	0	60
Dividends payable to parent	17	25
Regulatory liabilities	42	42
Taxes accrued	13	16
Accrued interest	15	13
Other	23	23
Total current liabilities	209	464
Deferred credits and other liabilities
Deferred income taxes	341	330
Deferred investment tax credits	5	5
Regulatory liabilities	416	407
Customer advances	27	25
Pension and employee benefit obligations	21	27
Other	35	35
Total deferred credits and other liabilities	845	829
Commitments and contingencies
Capitalization
Long-term debt	1,405	1,011
Common stock — 1,000,000 shares authorized of $100 par value; 933,000 shares outstanding at June 30, 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	$ 1,026	$ 843
Retained earnings	460	430
Total common stockholder's equity	1,579	1,366
Total liabilities and equity	4,038	3,670
Related Party
Current liabilities
Accounts payable	75	64
Affiliated Entity
Current liabilities
Accounts payable	$ 24	$ 21