Organization and Basis of Presentation (Schedule of Allocated Losses from Subsidiaries, Noncontrolling Interest) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Allocated losses to noncontrolling tax equity members utilizing the HLBV method	$ 11	$ 119	$ 78	$ 217
Allocated (income) losses to noncontrolling members based on pro rata shares of ownership	(2)	10	(5)	30
Total Noncontrolling Interest Allocated Losses	$ 9	$ 129	$ 73	$ 247