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STOCK COMPENSATION - General (Details)
shares in Millions, $ in Millions
1 Months Ended 11 Months Ended 12 Months Ended
Nov. 30, 2014
employee
May 31, 2016
USD ($)
person
Nov. 30, 2014
USD ($)
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Employee awards            
Number of employees affected by substitution of awards | employee 650          
Incremental compensation cost from modification   $ 0        
Compensation expense     $ 26 $ 33 $ 34 $ 27
Unrecognized compensation expense       $ 51    
Weighted-average period over which unrecognized compensation expense is expected to be recognized       2 years    
Maximum            
Employee awards            
Number of people impacted by modification | person   50        
Employee stock compensation            
Employee awards            
Aggregate number of shares authorized for issuance | shares       4.7    
Cash-settled Awards            
Employee awards            
Income tax expense on stock-based compensation       $ 0 2  
Cash payments       5 10  
Certain stock-based incentive amounts            
Income tax benefit recognized in the income statement (in dollars)       $ 0 $ 2