v3.5.0.2

Commitments and Contingencies - Environmental Remediation - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Loss Contingencies [Line Items]
Environmental contingencies	$ 41	$ 54
Current reserves for environmental contingencies	1	12
Lake Charles South Facility [Member]
Loss Contingencies [Line Items]
Environmental contingencies	12	15
Natrium West Virginia Facility [Member]
Loss Contingencies [Line Items]
Environmental contingencies	18	15
Calcasieu River Estuary in Lake Charles Louisiana [Member]
Loss Contingencies [Line Items]
Environmental contingencies	$ 4	$ 18

X

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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- Definition

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

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- Definition

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+ References

No definition available.

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