STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating activities
Net Income (Loss) Attributable to Parent	$ 395	$ 394	$ 384
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	468	458	373
Deferred income taxes	34	123	(133)
Allowance for equity funds used during construction	(31)	(17)	(7)
Provision for bad debts	7	6	11
Changes in operating assets and liabilities:
Accounts receivable	(13)	82	(67)
Accrued unbilled revenues	(15)	10	1
Inventories	(75)	(59)	(51)
Prepayments and other	242	(35)	39
Accounts payable	19	29	(37)
Net regulatory assets and liabilities	(30)	(26)	307
Other current liabilities	(307)	(63)	5
Pension and other employee benefit obligations	(1)	0	3
Other, net	6	(16)	(18)
Net cash provided by operating activities	699	886	810
Investing activities
Utility capital/construction expenditures	(1,524)	(1,015)	(714)
Investments in utility money pool arrangement	(322)	0	0
Receipts from utility money pool arrangement	322	0	0
Net cash used in investing activities	(1,524)	(1,015)	(714)
Financing activities
Proceeds from short-term borrowings, net	75	70	41
Proceeds from issuance of long-term debt	493	588	98
Repayments of Long-Term Debt	0	(350)	0
Borrowings under utility money pool arrangement	973	520	371
Repayments under utility money pool arrangement	(918)	(540)	(344)
Capital contributions from parent	566	279	48
Dividends paid to parent	(369)	(427)	(309)
Net cash provided by (used in) financing activities	820	140	(95)
Net change in cash and cash equivalents	(5)	11	1
Cash and cash equivalents at beginning of period	14	3	2
Cash and cash equivalents at end of period	9	14	3
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amounts capitalized)	(165)	(144)	(127)
Supplemental disclosure of non-cash investing transactions:
Accrued property, plant and equipment additions	135	99	56
Inventory transfers to plant, property and equipment	91	56	43
Allowance for Funds Used During Construction, Investing Activities	$ 31	$ 17	$ 7