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Goodwill and Other Intangible Assets (Tables)
 6 Months Ended
Jun. 30, 2020
Goodwill [Line Items]  
Schedule of Intangible Assets and Goodwill [Table Text Block]
Changes in goodwill and other intangible assets as of June 30, 2020, are provided in the following table:
 
Timber licenses1
Goodwill
Developed Technology
Trademark
Beginning balance December 31, 2019
$
38

$
30

$
20

$
3

Acquisition
—

—

—

—

Impairment charge
 
(5
)
 
 
Amortization
(2
)
—

—

—

Ending balance June 30, 2020
$
36

$
25

$
20

$
3