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Share-Based Compensation (Tables)
 6 Months Ended
Oct. 01, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Share Option Activity
The following table summarizes the share option activity during the six months ended October 1, 2016:
 
Number of
Options
 
Weighted
Average
Exercise Price
Outstanding at April 2, 2016
5,820,413

 
$
28.41

Granted
177,666

 
$
49.88

Exercised
(483,260
)
 
$
12.89

Canceled/forfeited
(147,769
)
 
$
73.57

Outstanding at October 1, 2016
5,367,050

 
$
29.28
Assumptions Used to Estimate Fair Value of Options
The following table represents assumptions used to estimate the fair value of options:
 
Six Months Ended
 
October 1
2016
 
September 26
2015
Expected dividend yield
0.0
%
 
0.0
%
Volatility factor
30.1
%
 
31.1
%
Weighted average risk-free interest rate
1.1
%
 
1.6
%
Expected life of option
4.75 years

 
4.75 years
Summary of Restricted Share and Restricted Share Unit Activity
The following table summarizes restricted share activity during the six months ended October 1, 2016:
 
Restricted Shares
 
Number of  Unvested
Restricted Shares
 
Weighted
Average Grant
Date Fair Value
Unvested at April 2, 2016
390,229

 
$
82.38

Granted
—

 
$
—

Vested
(131,672
)
 
$
80.00

Canceled/forfeited
(38,466
)
 
$
83.06

Unvested at October 1, 2016
220,091

 
$
83.69

The following table summarizes the RSU activity during the six months ended October 1, 2016:
 
Service-based
 
Performance-based
 
Number of
Restricted
Share Units
 
Weighted
Average Grant
Date Fair Value
 
Number of
Restricted
Share Units
 
Weighted
Average Grant
Date Fair Value
Unvested at April 2, 2016
1,071,058

 
$
47.13

 
579,774

 
$
61.84

Granted
768,336

 
$
50.24

 
98,237

 
$
49.88

Achievement of performance condition
—

 
$
—

 
80,093

 
$
62.24

Vested
(251,630
)
 
$
47.10

 
(240,278
)
 
$
62.24

Canceled/forfeited
(103,761
)
 
$
45.97

 
(23,427
)
 
$
74.28

Unvested at October 1, 2016
1,484,003

 
$
48.83

 
494,399

 
$
58.75
Summary of Compensation Expense Attributable to Share-Based Compensation
The following table summarizes compensation expense attributable to share-based compensation for the three and six months ended October 1, 2016 and September 26, 2015 (in millions):
 
Three Months Ended
 
Six Months Ended
 
October 1,
2016
 
September 26,
2015
 
October 1,
2016
 
September 26,
2015
Share-based compensation expense
$
11.6

 
$
13.4

 
$
21.4

 
$
25.9

Tax benefits related to share-based compensation expense
$
3.8

 
$
4.4

 
$
7.5

 
$
8.8