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Share-Based Employee Compensation (Tables)
3 Months Ended
Mar. 23, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of weighted-average assumptions used to value grants, by year
The following weighted-average assumptions used to value Safeway’s grants of stock options through the first quarter, by year, are as follows:
 
 
2013
 
2012
Expected life (in years)
6.25
-
6.50

 
6.25
-
6.50

Expected stock volatility
 
 
33.0
%
 
 
 
30.6
%
Risk-free interest rate
 
 
1.3
%
 
 
 
1.3
%
Expected dividend yield during the expected term
 
 
3.8
%
 
 
 
2.8
%