Investments (Tax Equity Investments - Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Carrying Value of Tax Equity Investments	$ 714	$ 1,000
Income Tax Credits And Other Income Tax Benefits	149
Tax Equity Investments Amortization Expense	$ 134