Other (Charges) Gains, Net (Schedule of Restructuring Reserves) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
As of September 30, 2015	$ 15
Total	15
Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	14
Additions	19
Cash payments	(10)
Other changes	(6)
Exchange rate changes	(2)
As of September 30, 2015	15
Total	14
Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	7
Additions	0
Cash payments	(6)
Other changes	0
Exchange rate changes	(1)
As of September 30, 2015	0
Total	7
Advanced Engineered Materials [Member]
Restructuring Cost and Reserve [Line Items]
As of September 30, 2015	4
Total	4
Advanced Engineered Materials [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	4
Additions	6
Cash payments	(2)
Other changes	(3)
Exchange rate changes	(1)
As of September 30, 2015	4
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 September 30, 2015	0
Total	0
Consumer Specialties [Member]
Restructuring Cost and Reserve [Line Items]
As of September 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 September 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 September 30, 2015	0
Total	0
Industrial Specialties [Member]
Restructuring Cost and Reserve [Line Items]
As of September 30, 2015	3
Total	3
Industrial Specialties [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	1
Additions	3
Cash payments	(1)
Other changes	0
Exchange rate changes	0
As of September 30, 2015	3
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 September 30, 2015	0
Total	0
Acetyl Intermediates [Member]
Restructuring Cost and Reserve [Line Items]
As of September 30, 2015	1
Total	1
Acetyl Intermediates [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	5
Additions	1
Cash payments	(4)
Other changes	0
Exchange rate changes	(1)
As of September 30, 2015	1
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	(6)
Other changes	0
Exchange rate changes	(1)
As of September 30, 2015	0
Total	7
Other [Member]
Restructuring Cost and Reserve [Line Items]
As of September 30, 2015	6
Total	6
Other [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	3
Additions	8
Cash payments	(2)
Other changes	(3)
Exchange rate changes	0
As of September 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 September 30, 2015	0
Total	$ 0