Stockholders' Equity (Tables)
 9 Months Ended
Nov. 03, 2018
Stockholders' Equity Note [Abstract]  
Schedule of Changes in Accumulated Other Comprehensive Income (Loss)
The following tables show the changes in accumulated other comprehensive income/(loss) balances for the nine months ended November 3, 2018 and the nine months ended October 28, 2017:
($ in millions)
Net  Actuarial
Gain/(Loss)
 
Prior Service
Credit/(Cost)
 
Foreign Currency Translation
 
Gain/(Loss) on Cash Flow Hedges
 
Accumulated
Other
Comprehensive
Income/(Loss)
February 3, 2018
$
(330
)
 
$
(26
)
 
$
—

 
$
(4
)
 
$
(360
)
Other comprehensive income/(loss) before reclassifications
—

 
—

 
—

 
10

 
10

Amounts reclassified from accumulated other comprehensive income
—

 
3

 
—

 
—

 
3

November 3, 2018
$
(330
)
 
$
(23
)
 
$
—

 
$
6

 
$
(347
)
($ in millions)
Net  Actuarial
Gain/(Loss)
 
Prior Service
Credit/(Cost)
 
Foreign Currency Translation
 
Gain/(Loss) on Cash Flow Hedges
 
Accumulated
Other
Comprehensive
Income/(Loss)
January 28, 2017
$
(421
)
 
$
(33
)
 
$
(2
)
 
$
(17
)
 
$
(473
)
Other comprehensive income/(loss) before reclassifications
53

 
—

 
—

 
(2
)
 
51

Amounts reclassified from accumulated other comprehensive income
8

 
6

 
—

 
5

 
19

October 28, 2017
$
(360
)
 
$
(27
)
 
$
(2
)
 
$
(14
)
 
$
(403
)