Fair Value Disclosures (Tables)
 9 Months Ended
Nov. 02, 2013
Fair Value Disclosures  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
 
 
 
REIT Assets at Fair Value
($ in millions)
Cost
Basis
 
Quoted Prices in Active
Markets of Identical Assets
(Level 1)
 
Significant Other
Observable Inputs
(Level 2)
 
Significant
Unobservable Inputs
(Level 3)
November 2, 2013
$
7

 
$
32

 
$
—

 
$
—

October 27, 2012
9

 
32

 
—

 
—

February 2, 2013
7

 
33

 
—

 
—
Fair Value, by Balance Sheet Grouping [Table Text Block]
 
November 2, 2013
 
October 27, 2012
 
February 2, 2013
($ in millions)
Carrying
Amount
 
Fair
Value
 
Carrying
Amount
 
Fair
Value
 
Carrying
Amount
 
Fair
Value
Long-term debt, including current maturities
$
4,868

 
$
4,252

 
$
2,868

 
$
2,706

 
$
2,868

 
$
2,456

Cost investment (Note 9)
—

 
—

 
36

 
—

 
36

 
—