Acquisitions (Additional Information) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended				12 Months Ended	1 Months Ended
	Sep. 30, 2012 Entity	Sep. 30, 2011	Jan. 31, 2012 European coatings company [Member] Facility	Jan. 31, 2012 Colpisa [Member]	Dec. 31, 2011 Spraylat Corp. [Member]	May 31, 2011 Equa-Chlor Inc. [Member]	Oct. 26, 2012 Subsequent Event [Member] Spraylat Corp. [Member] employees
Business Acquisition [Line Items]
Number of acquisitions made (in entities)	3
Purchase price	$ 207		$ 44	$ 38
Acquisition cost in assumed debt	122
Amount held in escrow			26	2		3
Assumed debt liability			120
Acquired cash	6		6
Manufacturing facilities			6
Loss related to the sales acquired inventory	8					1
Revenue reported by acquired entity for last annual period					125
Entity Number of Employees							300
Business acquisitions, net of cash balances acquired	53	56
Asset acquired	275					28
Business acquisition net gain						9
Business acquisition, gain						$ 10