Other (Charges) Gains, Net (Schedule of Restructuring Reserves) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	$ 15
Total	15
Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	14
Additions	14
Cash payments	(6)
Other changes	(6)
Exchange rate changes	(2)
As of June 30, 2015	14
Total	14
Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	7
Additions	0
Cash payments	(5)
Other changes	0
Exchange rate changes	(1)
As of June 30, 2015	1
Total	7
Advanced Engineered Materials [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	3
Total	3
Advanced Engineered Materials [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	4
Additions	4
Cash payments	(1)
Other changes	(3)
Exchange rate changes	(1)
As of June 30, 2015	3
Total	4
Advanced Engineered Materials [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of June 30, 2015	0
Total	0
Consumer Specialties [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	1
Total	1
Consumer Specialties [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	1
Additions	1
Cash payments	(1)
Other changes	0
Exchange rate changes	0
As of June 30, 2015	1
Total	1
Consumer Specialties [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of June 30, 2015	0
Total	0
Industrial Specialties [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	2
Total	2
Industrial Specialties [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	1
Additions	2
Cash payments	(1)
Other changes	0
Exchange rate changes	0
As of June 30, 2015	2
Total	1
Industrial Specialties [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of June 30, 2015	0
Total	0
Acetyl Intermediates [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	3
Total	3
Acetyl Intermediates [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	5
Additions	1
Cash payments	(3)
Other changes	0
Exchange rate changes	(1)
As of June 30, 2015	2
Total	5
Acetyl Intermediates [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	7
Additions	0
Cash payments	(5)
Other changes	0
Exchange rate changes	(1)
As of June 30, 2015	1
Total	7
Other [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	6
Total	6
Other [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	3
Additions	6
Cash payments	0
Other changes	(3)
Exchange rate changes	0
As of June 30, 2015	6
Total	3
Other [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of June 30, 2015	0
Total	$ 0