Segment Information (Reconciliation to Consolidated Income Statements) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Segment Information
Total segment PTOI	$ 356		$ 778		$ 4,402		$ 4,708
Net exchange gains (losses), including affiliates	(130)	[1]	6	[1]	(161)	[1]	(132)	[1]
Corporate expenses and net interest	(400)		(333)		(1,110)		(1,098)
(Loss) income from continuing operations before income taxes	$ (174)		$ 451		$ 3,131		$ 3,478

[1] The company routinely uses foreign currency exchange contracts to offset its net exposures, by currency, related to the foreign currency-denominated monetary assets and liabilities. The objective of this program is to maintain an approximately balanced position in foreign currencies in order to minimize, on an after-tax basis, the effects of exchange rate changes on net monetary asset positions. The net pre-tax exchange gains and losses are recorded in other (loss) income, net and the related tax impact is recorded in (benefit from) provision for income taxes on continuing operations on the interim Consolidated Income Statements.