Condensed Statements Of Consolidated Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows - operating activities:
Net income	$ 741,000	$ 595,000
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization, including regulatory amortization	734,000	688,000
Provision in lieu of deferred income taxes - net	27,000	40,000
Other - net	(13,000)	(1,000)
Changes in operating assets and liabilities:
Regulatory accounts related to reconcilable tariffs (Note 2)	103,000	6,000
Other operating assets and liabilities	(181,000)	(171,000)
Cash provided by operating activities	1,411,000	1,157,000
Cash flows - financing activities:
Issuances of long-term debt (Note 5)	3,950,000	1,290,000
Repayment of long-term debt (Note 5)	(2,732,000)
Net change in short-term borrowings (Note 4)	(215,000)	(70,000)
Capital contributions from members (Note 7)	318,000	188,000
Distributions to members (Note 7)	(318,000)	(739,000)
Debt discount and financing costs - net	(29,000)	(1,000)
Cash provided by financing activities	974,000	668,000
Cash flows - investing activities:
Capital expenditures	(2,161,000)	(1,842,000)
Expenditures for third party in joint project	(2,000)	(66,000)
Reimbursements from third party in joint project	1,000	98,000
Other - net	45,000	24,000
Cash used in investing activities	(2,117,000)	(1,786,000)
Net change in cash, cash equivalents and restricted cash	268,000	39,000
Cash, cash equivalents and restricted cash – beginning balance	54,000	27,000
Cash, cash equivalents and restricted cash – ending balance	$ 322,000	$ 66,000