Segment Information (Reconciliation to Consolidated Income Statements) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Segment Information
Total segment PTOI	$ 1,941		$ 2,248
Non operating pension and other post retirement employee benefit costs	(75)		(30)
Net exchange gains (losses)	64	[1]	(96)
Corporate expenses	(245)	[2]	(217)
Interest expense	(84)		(103)
Income before income taxes	1,601		1,802
Corporate Expenses [Member]
Segment Information
Separation related transaction costs	(81)		(16)
Foreign currency loss due to devaluation of Ukrainian hryvnia [Member]
Segment Information
Net exchange gains (losses)	$ (40)		$ (39)

[1] Included a charge of $(40) associated with remeasuring the company's Ukranian hryvnia net monetary assets in the three months ended March 31, 2015, which was recorded in other income, net in the company's interim Consolidated Income Statements.

[2] Included transaction costs associated with the separation of the Performance Chemicals segment of $(81) and $(16) in the three months ended March 31, 2015 and 2014, respectively, which were recorded in other operating charges in the company's interim Consolidated Income Statements.