Goodwill and Intangible Assets, Net (Schedule of Goodwill) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Dec. 31, 2011
Goodwill
Acquisitions (Note 3)	$ 8
Exchange rate changes	15
Goodwill	783	760
Accumulated impairment losses	0	0
Net book value	783	760
Advanced Engineered Materials [Member]
Goodwill
Acquisitions (Note 3)	0
Exchange rate changes	4
Goodwill	298	294
Accumulated impairment losses	0	0
Net book value	298	294
Consumer Specialties [Member]
Goodwill
Acquisitions (Note 3)	0
Exchange rate changes	4
Goodwill	250	246
Accumulated impairment losses	0	0
Net book value	250	246
Industrial Specialties [Member]
Goodwill
Acquisitions (Note 3)	8
Exchange rate changes	0
Goodwill	43	35
Accumulated impairment losses	0	0
Net book value	43	35
Acetyl Intermediates [Member]
Goodwill
Acquisitions (Note 3)	0
Exchange rate changes	7
Goodwill	192	185
Accumulated impairment losses	0	0
Net book value	$ 192	$ 185

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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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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+ Details

- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References+ 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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-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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+ Details