Income Taxes (Taxes on Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income before income taxes:
U.S.	$ 657	$ 460	$ 819
Other	1,782	1,784	1,824
Income before income taxes	2,439	2,244	2,643
Current –
U.S. Federal	70	82	313
Other national governments	455	449	388
U.S. state and local	57	82	36
Current income taxes	582	613	737
Deferred –
U.S. Federal	69	(30)	286
Other national governments	(16)	(1)	72
U.S. state and local	31	(8)	38
Deferred income taxes	84	(39)	396
Total income taxes	$ 666	$ 574	$ 1,133