Quarterly report pursuant to Section 13 or 15(d)

RESTRUCTURING, IMPAIRMENT AND PLANT CLOSING COSTS - ACCRUED RESTRUCTURING, IMPAIRMENT AND PLANT CLOSING COSTS BY TYPE OF COST AND INITIATIVE (Details)

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RESTRUCTURING, IMPAIRMENT AND PLANT CLOSING COSTS - ACCRUED RESTRUCTURING, IMPAIRMENT AND PLANT CLOSING COSTS BY TYPE OF COST AND INITIATIVE (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
item
Accrued restructuring costs roll forward    
Accrued liabilities at the beginning of the period   $ 53
Accrued liabilities at the end of the period $ 49 $ 49
Number of positions terminated | item   104
Number of positions not terminated | item   58
Workforce reductions    
Accrued restructuring costs roll forward    
Accrued liabilities at the beginning of the period   $ 5
Accrued liabilities at the end of the period 4 4
Demolition and decommissioning    
Accrued restructuring costs roll forward    
Accrued liabilities at the beginning of the period   2
Accrued liabilities at the end of the period 1 1
Non-cancelable lease and contract termination costs    
Accrued restructuring costs roll forward    
Accrued liabilities at the beginning of the period   41
Accrued liabilities at the end of the period 40 40
Other restructuring costs    
Accrued restructuring costs roll forward    
Accrued liabilities at the beginning of the period   5
Accrued liabilities at the end of the period 4 4
2017 and prior initiatives    
Accrued restructuring costs roll forward    
Restructuring charges (credits) $ 1 (4)
2017 and prior initiatives | Workforce reductions    
Accrued restructuring costs roll forward    
Restructuring charges (credits)   1
Restructuring (payments) credits   (2)
2017 and prior initiatives | Demolition and decommissioning    
Accrued restructuring costs roll forward    
Restructuring (payments) credits   (1)
2017 and prior initiatives | Non-cancelable lease and contract termination costs    
Accrued restructuring costs roll forward    
Restructuring (payments) credits   (1)
2017 and prior initiatives | Other restructuring costs    
Accrued restructuring costs roll forward    
Restructuring charges (credits)   (5)
Restructuring (payments) credits   4
2018 initiatives    
Accrued restructuring costs roll forward    
Restructuring charges   5
Restructuring payments   (5)
2018 initiatives | Other restructuring costs    
Accrued restructuring costs roll forward    
Restructuring charges   5
Restructuring payments   $ (5)