Income Tax (Provision for Income Tax Expense) (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)	$ 91	$ (2)	$ 247	$ 109
Effective Income Tax Rate Reconciliation, Percent	24.20%	24.90%	2.70%	32.50%