Organization and Basis of Presentation (Schedule of Allocated Losses from Subsidiaries, Noncontrolling Interest) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Allocated losses to noncontrolling tax equity members utilizing the HLBV method	$ 44	$ 55	$ 68	$ 98
Allocated (income) losses to noncontrolling members based on pro rata shares of ownership	(17)	12	(4)	20
Total Noncontrolling Interest Allocated Losses	$ 27	$ 67	$ 64	$ 118