Organization and Summary of Significant Accounting Policies (Schedule of Supplemental Disclosures of Cash Flow Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Cash paid during the year for interest, net of amounts capitalized	$ 140	$ 161	$ 106
Cash paid during the year for income taxes	13	41	0
Non-cash investing activities	(39)	94	3,690
Non-cash financing activities	0	$ 0	$ 2,051
Indigo Merger
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Non-cash investing activities	3,045
GEPH Merger
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Non-cash investing activities	$ 581