STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities
Net income	$ 54	$ 52
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	92	79
Deferred income taxes	(40)	(2)
Allowance for equity funds used during construction	(1)	0
Provision for bad debts	2	2
Changes in operating assets and liabilities:
Accounts receivable	23	(26)
Accrued unbilled revenues	3	0
Inventories	(14)	(6)
Prepayments and other	4	(8)
Accounts payable	(30)	0
Net regulatory assets and liabilities	108	3
Other current liabilities	(3)	(3)
Pension and other employee benefit obligations	(1)	1
Other, net	(3)	(3)
Net cash provided by operating activities	188	89
Investing activities
Utility capital/construction expenditures	(170)	(123)
Net cash used in investing activities	(170)	(123)
Financing activities
Repayments of short-term borrowings, net	44	75
Borrowings under utility money pool arrangement	5	202
Repayments under utility money pool arrangement	0	(193)
Capital contributions from parent	0	8
Dividends paid to parent	(66)	(58)
Net cash (used in) provided by financing activities	(17)	34
Net change in cash, cash equivalents and restricted cash	1	0
Cash, cash equivalents and restricted cash at beginning of period	2	1
Cash, cash equivalents and restricted cash at end of period	3	1
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(22)	(21)
Cash (paid) received for income taxes, net	(11)	3
Supplemental disclosure of non-cash investing and financing transactions:
Accrued property, plant and equipment additions	46	38
Inventory transfers to property, plant and equipment	9	4
Allowance for equity funds used during construction	1	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 3	$ 1