Real Estate and Other, Net Real Estate and Other, Net (Tables)
 3 Months Ended
Apr. 29, 2017
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
($ in millions)
April 29,
2017
 
April 30,
2016
Net gain from sale of non-operating assets
$
—

 
$
(5
)
Investment income from Home Office Land Joint Venture
(1
)
 
(24
)
Net gain from sale of operating assets
(117
)
 
(8
)
Other
—

 
(1
)
Total expense/(income)
$
(118
)
 
$
(38
)