Goodwill and Other Intangible Assets, net (Movement in Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Beginning Balance	$ 7,189	$ 7,666
Changes due to:
Currency	132	(477)
Ending Balance	5,858	7,189
European Union [Member]
Goodwill [Roll Forward]
Beginning Balance	1,357	1,419
Changes due to:
Currency	(19)	(62)
Ending Balance	1,338	1,357
Eastern Europe [Member]
Goodwill [Roll Forward]
Beginning Balance	303	321
Changes due to:
Currency	(3)	(18)
Ending Balance	300	303
Middle East And Africa [Member]
Goodwill [Roll Forward]
Beginning Balance	87	102
Changes due to:
Currency	2	(15)
Ending Balance	89	87
South & Southeast Asia [Member]
Goodwill [Roll Forward]
Beginning Balance	2,795	3,010
Changes due to:
Currency	103	(215)
Ending Balance	2,898	2,795
East Asia And Australia [Member]
Goodwill [Roll Forward]
Beginning Balance	536	567
Changes due to:
Currency	15	(31)
Ending Balance	551	536
Latin America & Canada [Member]
Goodwill [Roll Forward]
Beginning Balance	2,111	2,247
Changes due to:
Currency	34	(136)
Ending Balance	682	$ 2,111
Deconsolidation of RBH [Member]
Changes due to:
Deconsolidation of RBH	(1,463)
Deconsolidation of RBH [Member] | Latin America & Canada [Member]
Changes due to:
Deconsolidation of RBH	$ (1,463)