Restructuring and Asset Related Charges, Net (Charges) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Jun. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]          
Employee separation charges $ 1   $ 17 $ 3 $ 78
Decommissioning and other charges 13   0 38 0
Asset related charges - Restructuring 0   122 0 122
Total restructuring charges, net 14   139 41 200
Asset related charges - Impairment 46   45 104 45
Total restructuring and asset related charges, net 60   $ 184 145 $ 245
Disposed by Sale [Member] | Sulfur Business [Member]          
Restructuring Cost and Reserve [Line Items]          
Asset related charges - Impairment   $ 58      
Pascagoula, Mississippi [Member] | Aniline Facility [Member]          
Restructuring Cost and Reserve [Line Items]          
Asset related charges - Impairment $ 46     46  
Chemical Solutions [Member] | Disposed by Sale [Member] | Sulfur Business [Member]          
Restructuring Cost and Reserve [Line Items]          
Asset related charges - Impairment       58  
Chemical Solutions [Member] | Pascagoula, Mississippi [Member] | Aniline Facility [Member]          
Restructuring Cost and Reserve [Line Items]          
Asset related charges - Impairment       $ 46