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SHAREHOLDERS' EQUITY (Tables)
 9 Months Ended
Sep. 29, 2017
Equity [Abstract]  
Summary Of Stock-Based Compensation Expense, Net Of Tax
The following table summarizes stock-based compensation expense for the third quarter and first three quarters of fiscal 2017 and 2016:
 
Third Quarter of
 
First Three Quarters of
 
2017
 
2016
 
2017
 
2016
(In millions)
 
 
 
 
 
 
 
Cost of sales
$
1.1

 
$
0.9

 
$
2.8

 
$
2.8

Research and development
2.7

 
2.2

 
7.7

 
6.9

Sales and marketing
2.4

 
2.1

 
7.0

 
6.3

General and administrative
9.9

 
8.1

 
27.5

 
24.0

Total operating expense
15.0

 
12.4

 
42.2

 
37.2

Total stock-based compensation expense
$
16.1

 
$
13.3

 
$
45.0

 
$
40.0