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Balance Sheet and Cash Flow Supplemental Information
 6 Months Ended
Jun. 30, 2019
Balance Sheet and Cash Flow Supplemental Information [Abstract]  
Balance Sheet and Cash Flow Supplemental Information
12.          Balance Sheet and Cash Flow Supplemental Information

Accrued liabilities consisted of the following:
 
  
June 30,
2019
    
December 31,
2018
  
Employee-related costs and benefits
  
$
92
    
$
69
  
Payable to Tasnee for Cristal acquisition
    
72
      
—
  
Related party payables
    
5
      
—
  
Interest
    
16
      
16
  
Sales rebates
    
31
      
18
  
Restructuring
    
4
      
—
  
Taxes other than income taxes
    
26
      
5
  
Asset retirement obligations
    
11
      
6
  
Interest rate swaps
    
22
      
—
  
Foreign currency derivatives
    
—
      
6
  
Professional fees and other
    
51
      
20
  
Accrued liabilities
  
$
330
    
$
140
  

Additional supplemental cash flow information for the six months ended June 30, 2019 is as follows: 

Supplemental non cash information:
  
Six Months Ended
June 30, 2019
  
Investing activities- shares issued in the Cristal acquisition
  
$
526
  
Financing activities- debt assumed in the Cristal acquisition
  
$
20