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Stock Transactions And Stock-Based Compensation (Tables)
9 Months Ended
Sep. 27, 2013
Share-based Compensation [Abstract]  
Assumptions Used In The Black-Scholes Model To Value Options Granted
The following summarizes the assumptions used in the Black-Scholes model to value options granted during the nine months ended September 27, 2013:
 
Risk-free interest rate
0.98 – 2.33%
Weighted average volatility
23.6%
Dividend yield
0.2%
Expected years until exercise
6.0 to 8.5
Components Of Stock-Based Compensation Program
The following table summarizes the components of the Company’s stock-based compensation program recorded as expense ($ in millions):
 
 
Three Months Ended
 
Nine Months Ended
 
September 27, 2013
 
September 28, 2012
 
September 27, 2013
 
September 28, 2012
RSUs and restricted shares:
 
 
 
 
 
 
 
Pre-tax compensation expense
$
17.6

 
$
16.0

 
$
49.9

 
$
43.2

Income tax benefit
(5.2
)
 
(4.9
)
 
(15.0
)
 
(14.1
)
RSU and restricted share expense, net of income taxes
$
12.4

 
$
11.1

 
$
34.9

 
$
29.1

Stock options:
 
 
 
 
 
 
 
Pre-tax compensation expense
$
12.0

 
$
13.0

 
$
35.8

 
$
36.2

Income tax benefit
(3.7
)
 
(4.0
)
 
(11.0
)
 
(11.0
)
Stock option expense, net of income taxes
$
8.3

 
$
9.0

 
$
24.8

 
$
25.2

Total stock-based compensation:
 
 
 
 
 
 
 
Pre-tax compensation expense
$
29.6

 
$
29.0

 
$
85.7

 
$
79.4

Income tax benefit
(8.9
)
 
(8.9
)
 
(26.0
)
 
(25.1
)
Total stock-based compensation expense, net of income taxes
$
20.7

 
$
20.1

 
$
59.7

 
$
54.3

Option Activity Under The Company's Stock Plans
Option activity under the Company’s stock plans as of September 27, 2013 and changes during the nine months then ended were as follows (in thousands, except exercise price and number of years):
 
 
Options
 
Weighted
Average
Exercise
Price
 
Weighted Average
Remaining
Contractual Term
(in Years)
 
Aggregate
Intrinsic
Value
Outstanding as of December 31, 2012
27,372

 
$
37.94

 
 
 
 
Granted
3,609

 
64.43

 
 
 
 
Exercised
(4,317
)
 
31.12

 
 
 
 
Cancelled/forfeited
(866
)
 
44.41

 
 
 
 
Outstanding as of September 27, 2013
25,798

 
$
42.57

 
6
 
$
704,366

Vested and Expected to Vest as of September 27, 2013 (1)
25,028

 
$
42.15

 
6
 
$
693,732

Vested as of September 27, 2013
13,732

 
$
34.99

 
4
 
$
479,041

 
(1)
The “Expected to Vest” options are the net unvested options that remain after applying the pre-vesting forfeiture rate assumption to total unvested options.
RSU And Restricted Shares Activity
The following table summarizes information on unvested RSUs and restricted shares activity during the nine months ended September 27, 2013:
 
 
Number of RSUs/Restricted
Shares (in thousands)
 
Weighted Average
Grant-Date  Fair Value
Unvested as of December 31, 2012
5,585

 
$
43.29

Granted
1,531

 
64.54

Vested
(1,332
)
 
37.63

Forfeited
(450
)
 
44.86

Unvested as of September 27, 2013
5,334

 
$
50.67