Divestitures and Other Transactions - Performance Coatings (Summarized Financial Info) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Income Statement Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) income from discontinued operations after income taxes	$ 64		$ 491		$ 2,656
Performance Coatings [Member] | Discontinued Operations [Member]
Income Statement Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0		0		331
(Loss) income from discontinued operations before income taxes	(23)	[1]	0		2,717
(Benefit from) provision for income taxes	(1)		(15)	[2]	718
(Loss) income from discontinued operations after income taxes	$ (22)		$ 15		$ 1,999

[1] The year ended December 31, 2015 includes a net charge of $(23) related to a postretirement settlement charge and other employee related settlement adjustments.

[2] The year ended December 31, 2014 includes a tax benefit of $(15) related to a change in estimate of income taxes resulting from the filing of various tax returns impacted by the sale of Performance Coatings.