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Commitments and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Environmental Loss Contingencies by Site
The following table summarizes all probable environmental remediation, indemnification and restoration liabilities, including related legal expenses, at June 30, 2019 and December 31, 2018:
 
Liability(1)
 
Range of Reasonably Possible Costs at June 30, 2019
Site Description
June 30, 2019
 
December 31, 2018
 
Low
 
High
Geismar, LA
$
13

 
$
13

 
$
9

 
$
22

Superfund and offsite landfills – allocated share:
 
 
 
 
 
 
 
Less than 1%
3

 
3

 
2

 
6

Equal to or greater than 1%
6

 
5

 
5

 
14

Currently-owned
5

 
6

 
4

 
11

Formerly-owned:
 
 
 
 
 
 
 
Remediation
21

 
22

 
19

 
39

Monitoring only
1

 
1

 
1

 
4

Total
$
49

 
$
50

 
$
40

 
$
96