Goodwill and Other Intangible Assets, Net (Goodwill and Other Intangible Assets, by Segment) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	$ 9,009	$ 8,893
Other Intangible Assets, net	3,234	3,193
European Union [Member]
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	1,469	1,472
Other Intangible Assets, net	601	604
Eastern Europe, Middle East & Africa [Member]
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	589	617
Other Intangible Assets, net	225	228
Asia [Member]
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	4,170	3,960
Other Intangible Assets, net	1,312	1,251
Latin America & Canada [Member]
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	2,781	2,844
Other Intangible Assets, net	$ 1,096	$ 1,110