Other (Charges) Gains, Net (Schedule of Restructuring Reserves) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
As of March 31, 2015	$ 9us-gaap_RestructuringReserve
Total	9us-gaap_RestructuringReserve
Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	14
Additions	4
Cash payments	(2)
Other changes	(6)
Exchange rate changes	(2)
As of March 31, 2015	8
Total	8
Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	7
Additions	0
Cash payments	(5)
Other changes	0
Exchange rate changes	(1)
As of March 31, 2015	1
Total	1
Advanced Engineered Materials [Member]
Restructuring Cost and Reserve [Line Items]
As of March 31, 2015	1
Total	1
Advanced Engineered Materials [Member] \| Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	4
Additions	1
Cash payments	0
Other changes	(3)
Exchange rate changes	(1)
As of March 31, 2015	1
Total	1
Advanced Engineered Materials [Member] \| Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of March 31, 2015	0
Total	0
Consumer Specialties [Member]
Restructuring Cost and Reserve [Line Items]
As of March 31, 2015	1
Total	1
Consumer Specialties [Member] \| Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	1
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of March 31, 2015	1
Total	1
Consumer Specialties [Member] \| Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of March 31, 2015	0
Total	0
Industrial Specialties [Member]
Restructuring Cost and Reserve [Line Items]
As of March 31, 2015	2
Total	2
Industrial Specialties [Member] \| Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	1
Additions	1
Cash payments	0
Other changes	0
Exchange rate changes	0
As of March 31, 2015	2
Total	2
Industrial Specialties [Member] \| Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of March 31, 2015	0
Total	0
Acetyl Intermediates [Member]
Restructuring Cost and Reserve [Line Items]
As of March 31, 2015	3
Total	3
Acetyl Intermediates [Member] \| Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	5
Additions	0
Cash payments	(2)
Other changes	0
Exchange rate changes	(1)
As of March 31, 2015	2
Total	2
Acetyl Intermediates [Member] \| Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	7
Additions	0
Cash payments	(5)
Other changes	0
Exchange rate changes	(1)
As of March 31, 2015	1
Total	1
Other [Member]
Restructuring Cost and Reserve [Line Items]
As of March 31, 2015	2
Total	2
Other [Member] \| Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	3
Additions	2
Cash payments	0
Other changes	(3)
Exchange rate changes	0
As of March 31, 2015	2
Total	2
Other [Member] \| Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of March 31, 2015	0
Total	$ 0

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

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Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Number Topic 5

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Amount of foreign currency translation adjustment increasing or decreasing the accrual for a specified type of restructuring cost.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

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