Committments and Contingent Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of Loss Contingencies by Contingency [Table Text Block]

maintain reserves for various contingent liabilities as follows:

	December 31,
Dollar amounts in millions	2019			2018
Environmental reserves	$	10		$	11
Other reserves	—			—
Total contingencies	10			11
Current portion	(2		)	(2		)
Long-term portion	$	8		$	9

Schedule of Environmental Loss Contingencies by Site [Table Text Block]

The activity in our reserve for estimated environmental loss contingency reserves for the last two years is summarized in the following table.

	Year ended December 31,
Dollar amounts in millions	2019			2018
Beginning balance	$	11		$	15
Adjusted to expense (income) during the year	1			(2		)
Payments made	(1		)	(2		)
Translation	—			—
Ending balance	$	10		$	11