Commitments and Contingencies Level 4 (Details) - Environmental Liabilities - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2016	Dec. 31, 2015
Accrued Environmental Loss Contingencies, Current	$ 12	$ 13
Estimated Litigation Liability, Current
Environmental Institution of Parana IAP [Member]
Liability	15
Geismar, LA [Member]
Accrual for Environmental Loss Contingencies	15	15
Loss Contingency, Range of Possible Loss, Minimum	9
Loss Contingency, Range of Possible Loss, Maximum	$ 22
Discount rate assumed to record at present value	3.00%
Undiscounted Liability Expected to be Paid	next 22 years
Accrual for Environmental Loss Contingencies, Gross	$ 20
Accrual for Environmental Loss Contingencies, Undiscounted, Due Ratably over the Next Five Years	6
Superfund and Offsite Landfills - allocated share: Less than 1% [Member]
Accrual for Environmental Loss Contingencies	0	1
Loss Contingency, Range of Possible Loss, Minimum	0
Loss Contingency, Range of Possible Loss, Maximum	2
Superfund and Offsite Landfills - allocated share: Equal to or Greater than 1% [Member]
Accrual for Environmental Loss Contingencies	7	7
Loss Contingency, Range of Possible Loss, Minimum	5
Loss Contingency, Range of Possible Loss, Maximum	13
Currently-Owned [Member]
Accrual for Environmental Loss Contingencies	5	5
Loss Contingency, Range of Possible Loss, Minimum	4
Loss Contingency, Range of Possible Loss, Maximum	9
Accrual for Environmental Loss Contingencies, Undiscounted, Due Ratably over the Next Five Years	5
Formerly-Owned - Remediation [Member]
Accrual for Environmental Loss Contingencies	28	33
Loss Contingency, Range of Possible Loss, Minimum	26
Loss Contingency, Range of Possible Loss, Maximum	42
Formerly-Owned - Monitoring Only [Member]
Accrual for Environmental Loss Contingencies	0	$ 0
Loss Contingency, Range of Possible Loss, Minimum	0
Loss Contingency, Range of Possible Loss, Maximum	$ 1

Accrual for Environmental Loss Contingencies, Undiscounted, Due within One to Five Years

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- Definition

Discount rate assumed to record at present value

+ References

No definition available.

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- Definition

Undiscounted Liability Expected to be Paid

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No definition available.

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- 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
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- Definition

Undiscounted amount of the accrual for environmental loss contingencies.

+ References

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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

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- Definition

Carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid within one year of the date of the statement of financial position.

+ References

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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- Definition

The estimated maximum amount of possible loss from the contingency.

+ References

No definition available.

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- Definition

The estimated minimum amount of possible loss from the contingency.

+ References

No definition available.

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