Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities
Net income	$ 114	$ 63
Adjustments to reconcile net income to cash from operating activities:
Depreciation and amortization	122	112
Deferred income taxes and investment tax credits	13	6
Allowance for equity funds used during construction	(10)	(5)
Deferred recovery clauses	(35)	42
Regulatory assets and liabilities	26	19
Pension and post-retirement asset and liabilities	(2)	(3)
Other	2	(4)
Changes in working capital:
Receivables, less allowance for credit losses	(19)	46
Inventories	(5)	(3)
Taxes accrued	21	20
Interest accrued	15	21
Accounts payable	(112)	(112)
Other	1	3
Cash flows from operating activities	131	205
Cash flows used in investing activities
Capital expenditures	(309)	(268)
Net proceeds from sale of assets	0	3
Cash flows used in investing activities	(309)	(265)
Cash flows from financing activities
Equity contributions from Parent	150	300
Proceeds from long-term debt issuance	594	496
Net decrease in short-term debt (maturities of 90 days or less)	(478)	(650)
Dividends to Parent	(84)	(85)
Cash flows from financing activities	182	61
Net increase in cash and cash equivalents	4	1
Cash and cash equivalents at beginning of period	4	5
Cash and cash equivalents at end of period	8	6
Supplemental disclosure of non-cash activities
Change in accrued capital expenditures	$ 45	$ (11)