Goodwill and Other Intangible Assets, Net (Goodwill and Other Intangible Assets, by Segment) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	$ 9,177	$ 9,900
Other Intangible Assets, net	3,290	3,619
European Union [Member]
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	1,463	1,448
Other Intangible Assets, net	609	647
Eastern Europe, Middle East & Africa [Member]
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	614	637
Other Intangible Assets, net	230	242
Asia [Member]
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	4,183	4,791
Other Intangible Assets, net	1,327	1,542
Latin America & Canada [Member]
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	2,917	3,024
Other Intangible Assets, net	$ 1,124	$ 1,188