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Commitments and Contingencies Level 3 (Tables)
 6 Months Ended
Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Environmental Loss Contingencies by Site [Table Text Block]
 
Liability
 
Range of Reasonably Possible Costs at June 30, 2017
Site Description
June 30, 2017
 
December 31, 2016
 
Low
 
High
Geismar, LA
$
14

 
$
14

 
$
9

 
$
22

Superfund and offsite landfills – allocated share:
 
 
 
 
 
 
 
Less than 1%
2

 
2

 
1

 
5

Equal to or greater than 1%
7

 
6

 
5

 
13

Currently-owned
4

 
4

 
3

 
9

Formerly-owned:
 
 
 
 
 
 
 
Remediation
28

 
30

 
26

 
43

Monitoring only
1

 
1

 
—

 
1

Total
$
56

 
$
57

 
$
44

 
$
93