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, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Components of net periodic benefit cost        
Amortization of actuarial loss $ 22 $ 17 $ 44 $ 33
Contributions to pension and other postretirement benefit plans     39 38
Expected contributions to pension and other postretirement benefit plans during remainder of 2017     80  
Huntsman International        
Components of net periodic benefit cost        
Amortization of actuarial loss 24 21 48 37
Defined Benefit Plans        
Components of net periodic benefit cost        
Service cost 17 16 34 32
Interest cost 26 31 51 61
Expected return on plan assets (50) (48) (98) (95)
Amortization of prior service credit (1) (3) (3) (5)
Amortization of actuarial loss 22 18 44 34
Special termination benefits 1   1  
Net periodic benefit cost 15 14 29 27
Defined Benefit Plans | Huntsman International        
Components of net periodic benefit cost        
Service cost 17 16 34 32
Interest cost 26 31 51 61
Expected return on plan assets (50) (48) (98) (95)
Amortization of prior service credit (1) (3) (3) (5)
Amortization of actuarial loss 24 19 48 37
Special termination benefits 1   1  
Net periodic benefit cost 17 15 33 30
Other Postretirement Benefit Plans        
Components of net periodic benefit cost        
Service cost 1   1 1
Interest cost 1 1 2 2
Amortization of prior service credit (2) (1) (4) (3)
Amortization of actuarial loss 1   2 1
Net periodic benefit cost 1   1 1
Other Postretirement Benefit Plans | Huntsman International        
Components of net periodic benefit cost        
Service cost 1   1 1
Interest cost 1 1 2 2
Amortization of prior service credit (2) $ (1) (4) (3)
Amortization of actuarial loss 1   2 1
Net periodic benefit cost $ 1   $ 1 $ 1