Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	$ (33)	$ (26)	$ (55)	$ (66)
Increase (Decrease) in Income Taxes	67	27	67	27
Deferred Tax, Valuation Allowance	20		20
Loss on Blue Chip Swap Securities	0	$ 0	(57)	$ 0
Unrecognized Tax Benefits	262		262
Decrease in Unrecognized Tax Benefits is Reasonably Possible	$ 12		$ 12