Income Tax (Provision for Income Tax from Continuing Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
U.S. federal	$ 381	$ 159	$ 62
U.S. state and local	46	45	38
Non-U.S.	1,240	1,074	795
Subtotal	1,667	1,278	895
Deferred:
U.S. federal	(591)	1,234	872
U.S. state and local	(4)	0	(2)
Non-U.S.	(512)	(1,450)	(123)
Subtotal	(1,107)	(216)	747
Current and Deferred:
Provision for income tax expense (benefit)	$ 560	$ 1,062	$ 1,642