Divestitures and Other Transactions (Schedule of results of operations from discontinued operations) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations after income taxes	$ (3)	$ (29)	$ 0	$ (15)
Performance Chemicals [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	1,474	0	2,809
Cost of goods sold	0	1,177	0	2,214
Other operating charges	13	175	20	310
Selling, general and administrative expenses	0	97	0	189
Research and development expense	0	20	0	40
Other income, net	0	(28)	0	(27)
Interest expense	0	33	0	33
Employee separation / asset related charges, net	0	59	0	59
Loss from discontinued operations before income taxes	(13)	(59)	(20)	(9)
(Benefit) provision for income taxes	(5)	(30)	(8)	6
Loss from discontinued operations after income taxes	$ (8)	$ (29)	$ (12)	$ (15)