Annual report pursuant to Section 13 and 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
 12 Months Ended
Dec. 31, 2018
USD ($)
item
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Accrued restructuring costs roll forward      
Accrued liabilities at the beginning of the period $ 53 $ 68 $ 77
Reversal of reserves no longer required (30)   (2)
Distribution of prefunded restructuring costs     (11)
Foreign currency effect on liability balance   3 (4)
Accrued liabilities at the end of the period 29 53 68
Workforce reductions      
Accrued restructuring costs roll forward      
Accrued liabilities at the beginning of the period 5 4 19
Reversal of reserves no longer required (1)   (2)
Distribution of prefunded restructuring costs     (5)
Foreign currency effect on liability balance   1 (1)
Accrued liabilities at the end of the period $ 6 5 4
Number of positions terminated | item 50    
Number of positions not terminated | item 8    
Demolition and decommissioning      
Accrued restructuring costs roll forward      
Accrued liabilities at the beginning of the period $ 2 19 16
Distribution of prefunded restructuring costs     (5)
Foreign currency effect on liability balance   1 (1)
Accrued liabilities at the end of the period 1 2 19
Non-cancelable lease and contract termination costs      
Accrued restructuring costs roll forward      
Accrued liabilities at the beginning of the period 41 40 37
Reversal of reserves no longer required (29)    
Foreign currency effect on liability balance   1 (2)
Accrued liabilities at the end of the period 12 41 40
Other restructuring costs      
Accrued restructuring costs roll forward      
Accrued liabilities at the beginning of the period 5 5 5
Distribution of prefunded restructuring costs     (1)
Accrued liabilities at the end of the period 10 5 5
2016 initiatives      
Accrued restructuring costs roll forward      
Accrued liabilities at the beginning of the period 2    
Restructuring charges     6
Restructuring payments     (5)
Accrued liabilities at the end of the period 1 2  
2016 initiatives | Workforce reductions      
Accrued restructuring costs roll forward      
Restructuring charges     1
Restructuring payments     (1)
2016 initiatives | Other restructuring costs      
Accrued restructuring costs roll forward      
Restructuring charges     5
Restructuring payments     (4)
2017 and prior initiatives      
Accrued restructuring costs roll forward      
Restructuring charges (credits) 2    
Restructuring charges 2    
Restructuring payments (5)    
2017 and prior initiatives | Workforce reductions      
Accrued restructuring costs roll forward      
Restructuring payments (2)    
2017 and prior initiatives | Demolition and decommissioning      
Accrued restructuring costs roll forward      
Restructuring payments (1)    
2017 and prior initiatives | Non-cancelable lease and contract termination costs      
Accrued restructuring costs roll forward      
Restructuring charges 2    
Restructuring payments (2)    
2015 and prior initiatives      
Accrued restructuring costs roll forward      
Restructuring charges     47
Restructuring payments     (40)
2015 and prior initiatives | Workforce reductions      
Accrued restructuring costs roll forward      
Restructuring charges     1
Restructuring payments     (8)
2015 and prior initiatives | Demolition and decommissioning      
Accrued restructuring costs roll forward      
Restructuring charges     24
Restructuring payments     (15)
2015 and prior initiatives | Non-cancelable lease and contract termination costs      
Accrued restructuring costs roll forward      
Restructuring charges     9
Restructuring payments     (4)
2015 and prior initiatives | Other restructuring costs      
Accrued restructuring costs roll forward      
Restructuring charges     13
Restructuring payments     $ (13)
2017 initiatives      
Accrued restructuring costs roll forward      
Accrued liabilities at the beginning of the period      
Restructuring charges   12  
Restructuring payments   (10)  
Accrued liabilities at the end of the period 9    
2017 initiatives | Workforce reductions      
Accrued restructuring costs roll forward      
Restructuring charges   10  
Restructuring payments   (8)  
2017 initiatives | Other restructuring costs      
Accrued restructuring costs roll forward      
Restructuring charges   2  
Restructuring payments   (2)  
2016 and prior initiatives      
Accrued restructuring costs roll forward      
Restructuring charges (credits)   6  
Restructuring charges   6  
Restructuring payments   (26)  
2016 and prior initiatives | Workforce reductions      
Accrued restructuring costs roll forward      
Restructuring charges (credits)   (1)  
Restructuring payments   (1)  
2016 and prior initiatives | Demolition and decommissioning      
Accrued restructuring costs roll forward      
Restructuring charges (credits)   3  
Restructuring payments   (21)  
2016 and prior initiatives | Non-cancelable lease and contract termination costs      
Accrued restructuring costs roll forward      
Restructuring charges (credits)   2  
Restructuring payments   (2)  
2016 and prior initiatives | Other restructuring costs      
Accrued restructuring costs roll forward      
Restructuring charges (credits)   2  
Restructuring payments   $ (2)  
2018 initiatives      
Accrued restructuring costs roll forward      
Restructuring charges 15    
Restructuring payments (6)    
2018 initiatives | Workforce reductions      
Accrued restructuring costs roll forward      
Restructuring charges 5    
Restructuring payments (1)    
2018 initiatives | Other restructuring costs      
Accrued restructuring costs roll forward      
Restructuring charges 10    
Restructuring payments $ (5)