The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References+ Details

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

+ References+ Details

Equity Method Investments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Blue Flint	Sep. 30, 2012 Evonik Industries AG	Sep. 30, 2010 Evonik Industries AG
Equity Method Investee
Proceeds from sale of interest in equity method investee			$ 18.5
Equity earnings in Blue Flint since investment			15.0
Equity method investment ownership (as a percent)					50.00%
Non-cash gain (loss) related to sale of interest in equity method investee	(3.2)	(6.3)	(6.3)	(3.2)	3.9
Share of the joint venture's foreign currency transaction gain loss					$ 2.1