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Investments (Tax Equity Investments - Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Carrying Value of Tax Equity Investments	$ 737	$ 737	$ 1,000
Income Tax credits and other income tax benefits	37	112
Tax Equity Investments Amortization Expense	$ 33	$ 100

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Income Tax Credits And Other Income Tax Benefits

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Tax Equity Investments Amortization Expense

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