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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability
The Company recorded the activity related to the warranty reserve for the three months ended March 31 as follows:
In millions
2018
 
2017
Warranty reserve liability
 
 
 
Beginning balance as of January 1
$
26

 
$
27

Accruals for warranties issued
8

 
9

Settlements (in cash or in kind)
(10
)
 
(10
)
Ending balance as of March 31
$
24

 
$
26