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Retirement Plans and Other Benefits (Tables)
 3 Months Ended
Apr. 30, 2016
Pension and Postretirement Plans [Abstract]  
Net Benefit Expense (Income)

The following are the components of net periodic pension benefit cost and net periodic postretirement benefit income, which is recognized as part of SG&A expense:





 

 

 

 

 

 

 

 

 

 

 

 

 



 

 

 

 

 

 

 

 

 

 

 

 

 



 

Pension Benefits

 

 

Postretirement Benefits



 

Thirteen weeks ended

 

 

Thirteen weeks ended



 

April 30,

 

May 2,

 

 

April 30,

 

May 2,

($ in millions)

 

2016

 

2015

 

 

2016

 

2015

Service cost

 

$

 4 

 

$

 4 

 

 

$

 —

 

$

 —

Interest cost

 

 

 6 

 

 

 6 

 

 

 

 —

 

 

 —

Expected return on plan assets

 

 

 (9)

 

 

 (9)

 

 

 

 —

 

 

 —

Amortization of net loss (gain)

 

 

 4 

 

 

 3 

 

 

 

 (1)

 

 

 —

Net benefit expense (income)

 

$

 5 

 

$

 4 

 

 

$

 (1)

 

$

 —