Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

Changes in goodwill by segment for the year ended December 31, 2019 and 2018 are provided in the following table:

Dollar amounts in millions	Siding		OSB		Other		Total
Balance December 31, 2017	$	—	$	16	$	—	$	16
Additions	—		—		—		—
Balance December 31, 2018	$	—	$	16	$	—	$	16
Additions (see Note 8)	4		—		10		14
Balance December 31, 2019	$	4	$	16	$	10	$	30

Schedule of Intangible Assets and Goodwill [Table Text Block]

Changes in other intangible assets for the year ended December 31, 2019 and 2018 are provided in the following table:

Dollar amounts in millions	Timber Licenses			Developed Technology			Trademark		Total Other Intangibles
Balance December 31, 2017	$	44		$	11		$	—	$	55
Amortization	(3		)	(1		)	—		(4		)
Balance December 31, 2018	41			10			—		51
Additions (see Note 8)	—			12			3		15
Amortization	(3		)	(2		)	—		(5		)
Balance December 31, 2019	$	38		$	20		$	3	$	61