Stockholders' Equity
9 Months Ended
Oct. 31, 2015
Stockholders' Equity Note [Abstract]  
Stockholders' Equity
Stockholders’ Equity
The following table shows the change in the components of stockholders’ equity for the nine months ended October 31, 2015:
 
(in millions)
Number
of
Common
Shares
 
Common
Stock
 
Additional
Paid-in
Capital
 
Reinvested
Earnings/
(Accumulated
Deficit)
 
Accumulated
Other
Comprehensive
Income/(Loss)
 
Total
Stockholders’
Equity
January 31, 2015
304.9

 
$
152

 
$
4,606

 
$
(1,779
)
 
$
(1,065
)
 
$
1,914

Net income/(loss)

 

 

 
(442
)
 

 
(442
)
Other comprehensive income/(loss)

 

 

 

 
41

 
41

Stock-based compensation
0.6

 
1

 
33

 

 

 
34

October 31, 2015
305.5

 
$
153

 
$
4,639

 
$
(2,221
)
 
$
(1,024
)
 
$
1,547



Comprehensive Income
The tax effects allocated to each component of other comprehensive income/(loss) are as follows:
 
Three Months Ended
 
October 31, 2015
 
November 1, 2014
($ in millions)
Gross
Amount
 
Income
Tax
(Expense)/
Benefit
 
Net
Amount
 
Gross
Amount
 
Income
Tax
(Expense)/
Benefit
 
Net
Amount
Retirement benefit plans
 
 
 
 
 
 
 
 
 
 
 
Reclassification for amortization of net actuarial (gain)/loss
$
29

 
$
(11
)
 
$
18

 
$
16

 
$
(6
)
 
$
10

Reclassification for amortization of prior service (credit)/cost

 

 

 
(1
)
 

 
(1
)
Cash flow hedges
 
 
 
 
 
 
 
 
 
 
 
Net gain/(loss) on interest rate swaps
(10
)
 
4

 
(6
)
 

 

 

Total
$
19

 
$
(7
)
 
$
12

 
$
15

 
$
(6
)
 
$
9



 
Nine Months Ended
 
October 31, 2015
 
November 1, 2014
($ in millions)
Gross
Amount
 
Income
Tax
(Expense)/
Benefit
 
Net
Amount
 
Gross
Amount
 
Income
Tax
(Expense)/
Benefit
 
Net
Amount
Retirement benefit plans
 
 
 
 
 
 
 
 
 
 
 
Reclassification for amortization of net actuarial (gain)/loss
$
87

 
$
(34
)
 
$
53

 
$
49

 
$
(19
)
 
$
30

Reclassification for amortization of prior service (credit)/cost

 

 

 
(1
)
 

 
(1
)
Cash flow hedges
 
 
 
 
 
 
 
 
 
 
 
Net gain/(loss) on interest rate swaps
(19
)
 
7

 
(12
)
 

 

 

Total
$
68

 
$
(27
)
 
$
41

 
$
48

 
$
(19
)
 
$
29


The following table shows the changes in accumulated other comprehensive income/(loss) balances for the nine months ended October 31, 2015:
 
($ 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 31, 2015
$
(1,023
)
 
$
(40
)
 
$
(2
)
 
$

 
$
(1,065
)
Other comprehensive income/(loss) before reclassifications

 

 

 
(14
)
 
(14
)
Amounts reclassified from accumulated other comprehensive income
53

 

 

 
2

 
55

October 31, 2015
$
(970
)
 
$
(40
)
 
$
(2
)
 
$
(12
)
 
$
(1,024
)


Reclassifications out of accumulated other comprehensive income/(loss) are as follows:
 
 
Amount Reclassified from Accumulated Other Comprehensive Income/(Loss)
 
Line Item in the
Unaudited Interim Consolidated
Statements of Operations
 
Three Months Ended
 
Nine Months Ended
 
($ in millions)
October 31,
2015
 
November 1,
2014
 
October 31,
2015
 
November 1,
2014
 
Amortization of retirement benefit plans
 
 
 
 
 
 
 
 
 
Actuarial loss/(gain)(1)
$
29

 
$
16

 
$
87

 
$
49

 
Pension
Prior service cost/(credit)(1)
2

 
1

 
6

 
5

 
Pension
Prior service cost/(credit)(1)
(2
)
 
(2
)
 
(6
)
 
(6
)
 
SG&A
Cash flow hedges
 
 
 
 
 
 
 
 
 
Realized loss/(gain)

 

 
2

 

 
Net interest expense
Tax (expense)/benefit
(10
)
 
(6
)
 
(34
)
 
(19
)
 
Income tax expense/(benefit)
Total, net of tax
19

 
9

 
55

 
29

 
 
Total reclassifications
$
19

 
$
9

 
$
55

 
$
29

 
 
(1)
These accumulated other comprehensive income/(loss) components are included in the computation of net periodic benefit expense/(income). See Note 10 for additional details.