CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities
Net income	$ 536	$ 555
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	697	631
Deferred income taxes	(122)	16
Allowance for equity funds used during construction	(25)	(22)
Provision for bad debts	25	22
Changes in operating assets and liabilities:
Accounts receivable	115	(77)
Accrued unbilled revenues	257	38
Inventories	48	(130)
Other current assets	38	(10)
Accounts payable	(184)	97
Net regulatory assets and liabilities	178	(43)
Other current liabilities	31	(58)
Pension and other employee benefit obligations	1	(14)
Other, net	(54)	(74)
Net cash provided by operating activities	1,541	931
Investing activities
Utility capital/construction expenditures	(1,631)	(1,384)
Investments in utility money pool arrangement	(367)	(45)
Repayments from utility money pool arrangement	367	45
Net cash used in investing activities	(1,631)	(1,384)
Financing activities
Repayments of short-term borrowings, net	(294)	(147)
Borrowings under utility money pool arrangement	355	1,042
Repayments under utility money pool arrangement	(167)	(877)
Proceeds from issuance of long-term debt	834	686
Repayments of long-term debt	(250)	(300)
Capital contributions from parent	118	399
Dividends paid to parent	(507)	(365)
Net cash provided by financing activities	89	438
Net change in cash, cash equivalents and restricted cash	(1)	(15)
Cash, cash equivalents and restricted cash at beginning of period	10	25
Cash, cash equivalents and restricted cash at end of period	9	10
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(197)	(195)
Cash paid for income taxes, net	(119)	(70)
Supplemental disclosure of non-cash investing and financing transactions:
Accrued property, plant and equipment additions	168	144
Inventory transfers to property, plant and equipment	17	15
Operating lease right-of-use assets	17	16
Allowance for equity funds used during construction	$ 25	$ 22