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Retirement Plans
3 Months Ended
Aug. 28, 2011
Compensation and Retirement Disclosure [Abstract]  
Retirement Plans
Retirement Plans
Components of net periodic benefit cost are as follows:
 
 
 
Defined Benefit Plans
 
 
Three Months Ended
(in millions)
 
August 28,

2011
 
August 29,

2010
Service cost
 
$
1.4


 
$
1.5


Interest cost
 
2.2


 
2.4


Expected return on plan assets
 
(4.5
)
 
(4.0
)
Recognized net actuarial loss
 
1.6


 
1.1


Net periodic benefit cost
 
$
0.7


 
$
1.0


 
 
 
Postretirement Benefit Plan
 
 
Three Months Ended
(in millions)
 
August 28,

2011
 
August 29,

2010
Service cost
 
$
0.2


 
$
0.2


Interest cost
 
0.3


 
0.6


Recognized net actuarial loss
 


 
0.3


Net periodic benefit cost
 
$
0.5


 
$
1.1