Income Tax (Income Loss from Continuing Operations Before Income Tax Expense from Domestic and Foreign Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income (loss) from continuing operations:
U.S.	$ (95)	$ 5,785	$ 4,924
Non-U.S.	2,257	579	3,594
Income (loss) before provision for income tax	$ 2,162	$ 6,364	$ 8,518