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Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2018
Income Statement [Abstract]  
Other (income) expense, net [Table Text Block]
Other Income, Net:
 
Three Months Ended
March 31
 
2018
 
2017
 
(Dollars in Millions)
Transformation initiatives
$
4

 
$

Pension financing benefits, net
3


3

Loss on non-consolidated affiliate transactions, net

 
(1
)
 
$
7

 
$
2

Schedule of Product Warranty Liability [Table Text Block]
The following table provides a reconciliation of changes in the product warranty and recall claims liability:
 
Three Months Ended March 31
 
2018
 
2017
 
(Dollars in Millions)
Beginning balance
$
49

 
$
55

Accruals for products shipped
5

 
6

Changes in estimates
1

 
3

Specific cause actions
2

 

Foreign currency
2

 
1

Settlements
(7
)
 
(13
)
Ending balance
$
52

 
$
52