Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net income	$ 162	$ 181
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	279	243
Deferred income taxes	25	27
Allowance for equity funds used during construction	(11)	(11)
Decoupling mechanism deferrals, net of amortization	(5)	14
Gain (Loss) on Disposition of Other Assets	13	13
Other non-cash income and expenses, net	49	42
Changes in working capital:
Decrease in accounts receivable, net	52	16
(Increase) in inventories	(9)	(4)
(Increase)/decrease in margin deposits	85	37
(Decrease) in accounts payable and accrued liabilities	(35)	(34)
Other working capital items, net	22	6
Other, net	(41)	(38)
Net cash provided by operating activities	567	364
Cash flows from investing activities:
Capital expenditures	(596)	(623)
Sales of Nuclear decommissioning trust securities	1	0
Purchases of Nuclear decommissioning trust securities	(3)	(4)
Other, net	(11)	(12)
Net cash used in investing activities	(609)	(639)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from Issuance or Sale of Equity	0	78
Payments on long-term debt	(102)	0
Proceeds from Issuance of long-term debt	310	450
Issuance of commercial paper, net	0	(146)
Dividends paid	(109)	(96)
Other	(13)	(10)
Net cash provided by (used in) financing activities	86	276
Increase (Decrease) in cash and cash equivalents	44	1
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	56	6
Supplemental cash flow information is as follows:
Cash paid for interest, net of amounts capitalized	94	81
Cash paid for income taxes, net	(3)	(10)
Increase (Decrease) in Other Regulatory Assets	(3)	(118)
Increase (Decrease) in Regulatory Liabilities	$ (16)	$ (10)