CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
OPERATING ACTIVITIES
Net Income	$ 903	$ 802
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	907	833
Deferred Income Taxes	188	165
Asset Impairments and Other Related Charges	31	0
Allowance for Equity Funds Used During Construction	(70)	(57)
Mark-to-Market of Risk Management Contracts	100	(15)
Property Taxes	(108)	(88)
Deferred Fuel Over/Under-Recovery, Net	(122)	(75)
Change in Other Noncurrent Assets	(351)	(131)
Change in Other Noncurrent Liabilities	433	142
Changes in Certain Components of Working Capital:
Accounts Receivable, Net	(36)	(2)
Fuel, Materials and Supplies	(39)	139
Accounts Payable	108	6
Accrued Taxes, Net	(244)	(153)
Other Current Assets	(115)	(23)
Other Current Liabilities	(66)	(93)
Net Cash Flows from Operating Activities	1,519	1,450
INVESTING ACTIVITIES
Construction Expenditures	(2,830)	(2,100)
Purchases of Investment Securities	(575)	(603)
Sales of Investment Securities	555	587
Acquisitions of Generation Facilities	(965)	0
Acquisitions of Nuclear Fuel	(13)	(36)
Contribution in Aid of Construction Advances	260	55
Other Investing Activities	(1)	(5)
Net Cash Flows Used for Investing Activities	(3,569)	(2,102)
FINANCING ACTIVITIES
Capital Contribution from Noncontrolling Interest	96	0
Issuance of Common Stock	358	75
Issuance of Long-term Debt	2,906	562
Issuance of Short-term Debt with Original Maturities greater than 90 Days	0	320
Change in Short-term Debt with Original Maturities less than 90 Days, Net	47	752
Retirement of Long-term Debt	(678)	(229)
Redemption of Short-term Debt with Original Maturities Greater than 90 Days	0	(250)
Principal Payments for Finance Lease Obligations	(24)	(13)
Dividends Paid on Common Stock	(520)	(500)
Dividends Paid to Noncontrolling Interest	(35)	(1)
Other Financing Activities	(29)	(18)
Net Cash Flows from (Used for) Financing Activities	2,121	698
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	71	46
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	268	246
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 339	$ 292