Goodwill and Intangible Assets, Net (Schedule of Goodwill) (Details) (USD $) In Millions	9 Months Ended
Sep. 30, 2011	Dec. 31, 2010
Goodwill
Acquisitions (Note 3)	$ 1
Exchange rate changes	5
Goodwill	780	774
Accumulated impairment losses	0	0
Total	780	774
Advanced Engineered Materials [Member]
Goodwill
Acquisitions (Note 3)	0
Exchange rate changes	1
Goodwill	300	299
Accumulated impairment losses	0	0
Total	300	299
Consumer Specialties [Member]
Goodwill
Acquisitions (Note 3)	0
Exchange rate changes	1
Goodwill	250	249
Accumulated impairment losses	0	0
Total	250	249
Industrial Specialties [Member]
Goodwill
Acquisitions (Note 3)	1
Exchange rate changes	0
Goodwill	36	35
Accumulated impairment losses	0	0
Total	36	35
Acetyl Intermediates [Member]
Goodwill
Acquisitions (Note 3)	0
Exchange rate changes	3
Goodwill	194	191
Accumulated impairment losses	0	0
Total	$ 194	$ 191

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details

- Definition

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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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.

+ Details