Segment Information (Reconciliation to Consolidated Income Statements) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Information
Total segment PTOI	$ 741	$ 461	$ 4,759	$ 4,845
Non operating pension and other post retirement employee benefit costs	(142)	(157)	(415)	(507)
Net exchange losses, including affiliates	(101)	(130)	(55)	(161)
Corporate expenses	(162)	(233)	(582)	(708)
Interest expense	(108)	(116)	(340)	(347)
Income (loss) from continuing operations before income taxes	$ 228	$ (175)	$ 3,367	$ 3,122