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

+ References+ Details

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The estimated maximum amount of possible loss from the contingency.

+ References+ Details

- Definition

The estimated minimum amount of possible loss from the contingency.

+ References+ Details

Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		0 Months Ended	12 Months Ended
	Dec. 31, 2013 Lawsuit	Dec. 31, 2013 Other [Member]	Feb. 24, 2014 Imerys Transaction Litigation [Member] Lawsuit	Dec. 31, 2013 Armada PTE Limited [Member]	Dec. 31, 2013 Armada PTE Limited [Member] Minimum [Member]	Dec. 31, 2013 Armada PTE Limited [Member] Maximum [Member]
Loss Contingencies [Line Items]
Lawsuit alleges damages	$ 28	$ 9
Contingencies [Abstract]
Number of lawsuits alleging damages	2		3
Former ownership rate in company (in hundredths)					20.00%	19.00%
Estimated liability, minimum		2
Estimated liabiliity, maximum		3.4
Accrual for estimated liability	2.0
Amount awarded through arbitration				$ 70