Description Of Business And Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Description Of Business And Significant Accounting Policies [Abstract]
Schedule Of Cash, Cash Equivalents And Restricted Cash	At December 31, 2021 2020Cash, cash equivalents and restricted cash Cash and cash equivalents $ 11 $ 27Restricted cash, current (a) 13 -Restricted cash, noncurrent (a) 30 -Total cash, cash equivalents and restricted cash on the Statements of Consolidated Cash Flows $ 54 $ 27____________(a)Restricted cash represents amounts deposited with Oncor, by our customers, but subject to return in accordance with the PUCT rules, ERCOT requirement or our tariffs, relating to generation interconnection and construction and/or extension of electric delivery system facilities. We maintain these amounts in a separate escrow account.