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Product Warranty (Tables)
 12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability [Table Text Block] The activity in warranty reserves for the last three years is summarized in the following table. 
  
Year ended December 31,
Dollar amounts in millions
2019
 
2018
Beginning balance
$
14

 
$
25

Accrued to expense during the year
1

 
1

Accrued/ (credited) to other operating credits and charges
(4
)
 
(8
)
Accrued to discontinued operations
—

 
5

Foreign currency translation
—

 
—

Payments made
(3
)
 
(9
)
Total warranty reserves
8

 
14

Current portion of warranty reserves
(2
)
 
(3
)
Long term portion of warranty reserves
$
6

 
$
11