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 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Components of net periodic benefit cost        
Amortization of actuarial loss $ 17 $ 19 $ 33 $ 37
Contributions to pension and other postretirement benefit plans     38 55
Expected contributions to pension and other postretirement benefit plans during remainder of 2016     36  
Huntsman International        
Components of net periodic benefit cost        
Amortization of actuarial loss 21 21 37 41
Defined Benefit Plans        
Components of net periodic benefit cost        
Service cost 16 17 32 36
Interest cost 31 30 61 61
Expected return on assets (48) (49) (95) (100)
Amortization of prior service benefit (3)   (5) (2)
Amortization of actuarial loss 18 18 34 37
Special termination benefits   3   3
Net periodic benefit cost 14 19 27 35
Defined Benefit Plans | Huntsman International        
Components of net periodic benefit cost        
Service cost 16 17 32 36
Interest cost 31 30 61 61
Expected return on assets (48) (49) (95) (100)
Amortization of prior service benefit (3)   (5) (2)
Amortization of actuarial loss 19 20 37 41
Special termination benefits   3   3
Net periodic benefit cost 15 21 30 39
Other Postretirement Benefit Plans        
Components of net periodic benefit cost        
Service cost   1 1 2
Interest cost 1 2 2 3
Amortization of prior service benefit (1) (1) (3) (2)
Amortization of actuarial loss   1 1 2
Net periodic benefit cost   3 1 5
Other Postretirement Benefit Plans | Huntsman International        
Components of net periodic benefit cost        
Service cost   1 1 2
Interest cost 1 2 2 3
Amortization of prior service benefit $ (1) (1) (3) (2)
Amortization of actuarial loss   1 1 2
Net periodic benefit cost   $ 3 $ 1 $ 5