Other (Charges) Gains, Net (Schedule of Restructuring Reserves) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Reserve as of the end of the period	$ 21
Total	21
Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	29		29
Additions	7		23
Cash payments	(21)		(23)
Other changes	0		(1)
Exchange rate changes	(1)		1
Reserve as of the end of the period	14		29
Total	14		29
Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	33		1
Additions	0		33
Cash payments	(9)		(1)
Other changes	(15)		0
Exchange rate changes	(2)		0
Reserve as of the end of the period	7		33
Total	7		33
Advanced Engineered Materials [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the end of the period	4
Total	4
Advanced Engineered Materials [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	4		6
Additions	1		0
Cash payments	(1)		(2)
Other changes	0		0
Exchange rate changes	0		0
Reserve as of the end of the period	4		4
Total	4		4
Advanced Engineered Materials [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	0		0
Additions	0		0
Cash payments	0		0
Other changes	0		0
Exchange rate changes	0		0
Reserve as of the end of the period	0		0
Total	0		0
Consumer Specialties [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the end of the period	1
Total	1
Consumer Specialties [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	3		13
Additions	1		0
Cash payments	(3)		(10)
Other changes	0		0
Exchange rate changes	0		0
Reserve as of the end of the period	1		3
Total	1		3
Consumer Specialties [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	0		0
Additions	0		0
Cash payments	0		0
Other changes	0		0
Exchange rate changes	0		0
Reserve as of the end of the period	0		0
Total	0		0
Industrial Specialties [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the end of the period	1
Total	1
Industrial Specialties [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	2		0
Additions	1		3
Cash payments	(2)		(1)
Other changes	0		0
Exchange rate changes	0		0
Reserve as of the end of the period	1		2
Total	1		2
Industrial Specialties [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	0		0
Additions	0		0
Cash payments	0		0
Other changes	0		0
Exchange rate changes	0		0
Reserve as of the end of the period	0		0
Total	0		0
Acetyl Intermediates [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the end of the period	12
Total	12
Acetyl Intermediates [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	16		3
Additions	4		20
Cash payments	(14)		(8)
Other changes	0		0
Exchange rate changes	(1)		1
Reserve as of the end of the period	5		16
Total	5		16
Acetyl Intermediates [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	33		1
Additions	0		33
Cash payments	(9)		(1)
Other changes	(15)	[1]	0
Exchange rate changes	(2)		0
Reserve as of the end of the period	7		33
Total	7		33
Other [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the end of the period	3
Total	3
Other [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	4		7
Additions	0		0
Cash payments	(1)		(2)
Other changes	0		(1)
Exchange rate changes	0		0
Reserve as of the end of the period	3		4
Total	3		4
Other [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
Reserve as of the beginning of the period	0		0
Additions	0		0
Cash payments	0		0
Other changes	0		0
Exchange rate changes	0		0
Reserve as of the end of the period	0		0
Total	0		0
Tarragona, Spain [Member] | Acetyl Intermediates [Member] | Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Other changes	$ (13)

[1] Includes a $13 million non-cash reduction to take-or-pay contract termination penalties resulting from the closure of the Company's VAM facility in Tarragona, Spain (Note 4).