Segment Information (Schedule of Business Segments) (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014		Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales	$ 1,477		$ 1,769		$ 2,927		$ 3,474
Other (charges) gains, net	(10)		2		(15)		1
Operating profit (loss)	188		259		445		502
Equity in net earnings (loss) of affiliates	40		101		88		141
Depreciation and amortization	105		72		172		147
Capital expenditures	153	[1]	131	[1]	299	[2]	249	[2]
Goodwill and intangible assets, net	841				841				$ 881
Total assets	8,988				8,988				8,818
Increase (decrease) in accrued capital expenditures	(12)		6		(28)		(24)
Operating Segments [Member] | Advanced Engineered Materials [Member]
Segment Reporting Information [Line Items]
Net sales	346		389		689		762
Other (charges) gains, net	(3)		(1)		(4)		(1)
Operating profit (loss)	67		56		126		113
Equity in net earnings (loss) of affiliates	31		45		74		78
Depreciation and amortization	24		27		49		53
Capital expenditures	16		11		33		20
Goodwill and intangible assets, net	344				344				358
Total assets	2,443				2,443				2,484
Operating Segments [Member] | Consumer Specialties [Member]
Segment Reporting Information [Line Items]
Net sales	249	[3]	289	[3]	476		591
Other (charges) gains, net	(1)		0		(1)		0
Operating profit (loss)	77		80		139		179
Equity in net earnings (loss) of affiliates	1		7		1		8
Depreciation and amortization	12		10		23		21
Capital expenditures	11		22		37		50
Goodwill and intangible assets, net	253				253				261
Total assets	1,485				1,485				1,491
Operating Segments [Member] | Industrial Specialties [Member]
Segment Reporting Information [Line Items]
Net sales	287		333		569		645
Other (charges) gains, net	(1)		0		(2)		0
Operating profit (loss)	28		24		57		44
Equity in net earnings (loss) of affiliates	0		0		0		0
Depreciation and amortization	9		12		19		26
Capital expenditures	13		6		19		10
Goodwill and intangible assets, net	51				51				54
Total assets	832				832				823
Operating Segments [Member] | Acetyl Intermediates [Member]
Segment Reporting Information [Line Items]
Net sales	707	[3]	901	[3]	1,420	[4]	1,742	[4]
Other (charges) gains, net	(1)		2		(2)		2
Operating profit (loss)	54		142		185		239
Equity in net earnings (loss) of affiliates	1		14		2		15
Depreciation and amortization	57	[5]	19		76	[6]	40
Capital expenditures	112		90		208		166
Goodwill and intangible assets, net	193				193				208
Total assets	2,594				2,594				2,495
Corporate, Non-Segment [Member] | Other Activities [Member]
Segment Reporting Information [Line Items]
Net sales	0		0		0		0
Other (charges) gains, net	(4)		1		(6)		0
Operating profit (loss)	(38)		(43)		(62)		(73)
Equity in net earnings (loss) of affiliates	7		35		11		40
Depreciation and amortization	3		4		5		7
Capital expenditures	1		2		2		3
Goodwill and intangible assets, net	0				0				0
Total assets	1,634				1,634				1,525
Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(112)		(143)		(227)		(266)
Other (charges) gains, net	0		0		0		0
Operating profit (loss)	0		0		0		0
Equity in net earnings (loss) of affiliates	0		0		0		0
Depreciation and amortization	0		0		0		0
Capital expenditures	0		0		0		0
Goodwill and intangible assets, net	0				0				0
Total assets	0				0				$ 0
Eliminations [Member] | Acetyl Intermediates [Member]
Segment Reporting Information [Line Items]
Net sales	$ 112		$ 143		$ 227		$ 266

[1] Includes a decrease in accrued capital expenditures of $12 million and an increase of $6 million for the three months ended June 30, 2015 and 2014, respectively.

[2] Includes a decrease in accrued capital expenditures of $28 million and $24 million for the six months ended June 30, 2015 and 2014, respectively.

[3] Net sales for Acetyl Intermediates includes intersegment sales of $112 million and $143 million for the three months ended June 30, 2015 and 2014, respectively.

[4] Net sales for Acetyl Intermediates includes intersegment sales of $227 million and $266 million for the six months ended June 30, 2015 and 2014, respectively.

[5] See Note 12 - Other (Charges) Gains, Net for further information.

[6] See Note 12 - Other (Charges) Gains, Net for further information.