Quarterly report pursuant to Section 13 or 15(d)

EMPLOYEE BENEFIT PLANS (Details)

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EMPLOYEE BENEFIT PLANS (Details) (USD $)
In Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Net periodic benefit costs        
Increase in long-term pension liability     $ 76  
Contributions to pension and other postretirement benefit plans     132 100
Expected contributions to pension and other postretirement benefit plans during remainder of 2011 31   31  
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | Defined Benefit Plans
        
Net periodic benefit costs        
Service cost 18 15 51 48
Interest cost 39 35 116 106
Expected return on assets (47) (39) (141) (121)
Amortization of prior service cost (2) (1) (5) (4)
Amortization of actuarial loss 9 7 26 22
Net periodic benefit cost 17 17 47 51
Defined Benefit Plans
        
Net periodic benefit costs        
Service cost 18 15 51 48
Interest cost 39 35 116 106
Expected return on assets (47) (39) (141) (121)
Amortization of prior service cost (2) (1) (5) (4)
Amortization of actuarial loss 9 6 23 18
Net periodic benefit cost 17 16 44 47
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES | Other Postretirement Benefit Plans
        
Net periodic benefit costs        
Service cost     2 2
Interest cost 2 1 6 5
Amortization of prior service cost (1) (1) (2) (2)
Amortization of actuarial loss 1 1 1 1
Net periodic benefit cost 2 1 7 6
Other Postretirement Benefit Plans
        
Net periodic benefit costs        
Service cost     2 2
Interest cost 2 1 6 5
Amortization of prior service cost (1) (1) (2) (2)
Amortization of actuarial loss 1 1 1 1
Net periodic benefit cost $ 2 $ 1 $ 7 $ 6