Summary of Significant Accounting Policies Other long term liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Other Noncurrent Liabilities [Table Text Block]

Other long-term liabilities were as follows:

	December 31,
Dollar amounts in millions	2019		2018
Asset retirement obligations	$	11	$	12
Uncertain tax positions	37		40
Post-retirement obligations	9		8
Pension obligations, net	25		25
Warranty reserves	6		11
Other	37		38
Total Other long-term liabilities	$	125	$	134