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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Summary of Accrued Warranty Obligation
The following table is a summary of the Company’s accrued warranty obligation (in millions):
 
Year Ended December 31,
Warranty reserve
2015
 
2014
 
2013
Balance at the beginning of the year
$
25

 
$
4

 
$
4

Acquisition
—

 
21

 
—

Warranty expense
30

 
13

 
7

Warranty payments
(33
)
 
(13
)
 
(7
)
Balance at the end of the year
$
22

 
$
25

 
$
4
Compensation Expense and Related Tax Benefit for Equity Based Payments
The compensation expense and the related income tax benefit for share-based compensation were included in the Consolidated Statement of Operations as follows (in millions):
 
Year Ended December 31,
Compensation costs and related income tax benefit
2015
 
2014
 
2013
Cost of sales
$
3

 
$
1

 
$
1

Selling and marketing
8

 
4

 
2

Research and development
8

 
3

 
2

General and administration
14

 
12

 
8

Total compensation expense
$
33

 
$
20

 
$
13

Income tax benefit
$
11

 
$
7

 
$
5