Annual report pursuant to Section 13 and 15(d)

Employee Equity Incentive Plans (Tables)

v3.8.0.1
Employee Equity Incentive Plans (Tables)
12 Months Ended
Dec. 30, 2017
Employee Benefits and Share-based Compensation, Noncash [Abstract]  
Restricted Stock Units Estimated Values And Weighted Average Assumptions [Table Text Block]
We use the Black-Scholes option pricing model to estimate the fair value of rights to acquire shares of common stock granted under the 2006 Stock Purchase Plan on the date of grant. We based the weighted average estimated value of RSU and OSU grants, and rights granted under the 2006 Stock Purchase Plan, on the weighted average assumptions for each period as follows:
 
 
RSUs and OSUs
 
Stock Purchase Plan
 
 
Dec 30,
2017
 
Dec 31,
2016
 
Dec 26,
2015
 
Dec 30,
2017
 
Dec 31,
2016
 
Dec 26,
2015
Estimated values
 
$
35.30

 
$
29.76

 
$
31.63

 
$
7.20

 
$
6.70

 
$
6.56

Risk-free interest rate
 
1.4
%
 
0.9
%
 
0.6
%
 
1.0
%
 
0.5
%
 
0.1
%
Dividend yield
 
2.9
%
 
3.3
%
 
2.9
%
 
2.9
%
 
3.2
%
 
3.1
%
Volatility
 
23
%
 
23
%
 
27
%
 
19
%
 
22
%
 
25
%
Expected life (in years)
 
n/a

 
n/a

 
n/a

 
0.5

 
0.5

 
0.5

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]
We use the Black-Scholes option pricing model to estimate the fair value of rights to acquire shares of common stock granted under the 2006 Stock Purchase Plan on the date of grant. We based the weighted average estimated value of RSU and OSU grants, and rights granted under the 2006 Stock Purchase Plan, on the weighted average assumptions for each period as follows:
 
 
RSUs and OSUs
 
Stock Purchase Plan
 
 
Dec 30,
2017
 
Dec 31,
2016
 
Dec 26,
2015
 
Dec 30,
2017
 
Dec 31,
2016
 
Dec 26,
2015
Estimated values
 
$
35.30

 
$
29.76

 
$
31.63

 
$
7.20

 
$
6.70

 
$
6.56

Risk-free interest rate
 
1.4
%
 
0.9
%
 
0.6
%
 
1.0
%
 
0.5
%
 
0.1
%
Dividend yield
 
2.9
%
 
3.3
%
 
2.9
%
 
2.9
%
 
3.2
%
 
3.1
%
Volatility
 
23
%
 
23
%
 
27
%
 
19
%
 
22
%
 
25
%
Expected life (in years)
 
n/a

 
n/a

 
n/a

 
0.5

 
0.5

 
0.5

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
RSU activity in 2017 was as follows:
 
 
Number of
RSUs
(In Millions)
 
Weighted
Average
Grant-Date
Fair Value
December 31, 2016
 
106.8

 
$
28.99

Granted
 
45.2

 
$
35.30

Assumed in acquisition
 
1.1

 
$
34.90

Vested
 
(40.5
)
 
$
27.52

Forfeited
 
(12.2
)
 
$
30.08

December 30, 2017
 
100.4

 
$
32.36

Expected to vest as of December 30, 2017
96.5

 
$
32.36