Membership Interests (Schedule Of Distributions Paid) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Dividends Payable [Line Items]
Amount	$ 318	$ 739
Payment One FY 2022 [Member]
Dividends Payable [Line Items]
Declaration Date	Feb. 18, 2022
Payment Date	Feb. 18, 2022
Amount	$ 106
Payment Two FY 2022 [Member]
Dividends Payable [Line Items]
Declaration Date	Apr. 27, 2022
Payment Date	Apr. 28, 2022
Amount	$ 106
Payment Three FY 2022 [Member]
Dividends Payable [Line Items]
Declaration Date	Jul. 27, 2022
Payment Date	Jul. 28, 2022
Amount	$ 106