STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities
Net income	$ 302	$ 283
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	275	302
Deferred income taxes	(88)	21
Allowance for equity funds used during construction	(5)	(2)
Provision for bad debts	9	6
Changes in operating assets and liabilities:
Accounts receivable	(26)	(69)
Accrued unbilled revenues	22	28
Inventories	(16)	(14)
Prepayments and other	39	(5)
Accounts payable	(9)	49
Net regulatory assets and liabilities	223	(73)
Other current liabilities	35	30
Pension and other employee benefit obligations	(3)	1
Other, net	(4)	(2)
Net cash provided by operating activities	710	499
Investing activities
Utility capital/construction expenditures	(552)	(405)
Investments in utility money pool arrangement	0	133
Repayments from utility money pool arrangement	0	113
Net cash used in investing activities	(552)	(425)
Financing activities
Proceeds from (repayments of) short-term borrowings, net	(34)	(137)
Proceeds from issuance of long-term debt, net	98	196
Borrowings under utility money pool arrangement	266	262
Repayments under utility money pool arrangement	(266)	(353)
Capital contributions from parent	53	210
Dividends paid to parent	(229)	(250)
Net cash used in financing activities	(112)	(72)
Net change in cash, cash equivalents and restricted cash	46	2
Cash, cash equivalents and restricted cash at beginning of period	2	1
Cash, cash equivalents and restricted cash at end of period	48	3
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(86)	(94)
Cash (paid) received for income taxes, net	(50)	45
Supplemental disclosure of non-cash investing and financing transactions:
Accrued property, plant and equipment additions	45	40
Inventory transfers to property, plant and equipment	8	8
Allowance for equity funds used during construction	5	2
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 48	$ 3