Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the costs of intangible assets over the expected benefit period of such assets. This element applies only to intangible assets used in the production of goods.

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- Definition

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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- Definition

The carrying amount of the long-term purchase obligation as of the balance sheet date, which equals the sum of all payments due.

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Commitments and Contingencies (Purchase Obligations Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Recorded Unconditional Purchase Obligation [Line Items]
Recorded Unconditional Purchase Obligation		$ 3,400,000,000
Property, plant and equipment, net		3,269,000,000	3,017,000,000
Accelerated amortization	22,000,000
Advanced Engineered Materials [Member]
Recorded Unconditional Purchase Obligation [Line Items]
Accelerated amortization	2,000,000		2,000,000
Acetyl Intermediates [Member]
Recorded Unconditional Purchase Obligation [Line Items]
Accelerated amortization	20,000,000		20,000,000
Commercial dispute resolutions, bankrupt supplier		17,000,000
Variable Interest Entity, Not Primary Beneficiary [Member]
Recorded Unconditional Purchase Obligation [Line Items]
Capital lease obligations, current		6,000,000
Capital lease obligations		137,000,000
Property, plant and equipment, net		$ 119,000,000