Real Estate and Other, Net Real Estate and Other, Net (Tables)
 6 Months Ended
Jul. 30, 2016
Real Estate and Other, Net [Abstract]  
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]
The composition of Real estate and other, net was as follows:  
 
Three Months Ended
 
Six Months Ended
($ in millions)
July 30,
2016
 
August 1,
2015
 
July 30,
2016
 
August 1,
2015
Net gain from sale of non-operating assets
$
—

 
$
(6
)
 
$
(5
)
 
$
(8
)
Investment income from Home Office Land Joint Venture
(5
)
 
—

 
(29
)
 
(22
)
Net gain from sale of operating assets
(2
)
 
—

 
(10
)
 
(8
)
Other
(2
)
 
25

 
(3
)
 
22

Total expense/(income)
$
(9
)
 
$
19

 
$
(47
)
 
$
(16
)