Income Taxes (Taxes on Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
U.S., income before income taxes	$ 702	$ 313	$ 407
Other, income before income taxes	1,605	1,744	1,566
Total income before income taxes	2,307	2,057	1,973
U.S. Federal, current	90	80	102
Other national governments, current	385	369	264
U.S. state and local, current	52	26	45
Total current income taxes	527	475	411
U.S. Federal, deferred	125	27	12
Other national governments, deferred	15	62	149
U.S. state and local, deferred	4	22	22
Total deferred income taxes	144	111	183
Total income taxes	$ 671	$ 586	$ 594