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Share-Based Compensation (Tables)
 12 Months Ended
Feb. 02, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Share-Based Compensation Expense
Share-based compensation expense is as follows:
  
 
Fiscal Year
($ in millions)
 
2012
 
2011
 
2010
Stock units
 
$
92

 
$
39

 
$
59

Stock options
 
17

 
15

 
14

Employee stock purchase plan
 
4

 
4

 
4

Share-based compensation expense
 
113

 
58

 
77

Less: Income tax benefit
 
(44
)
 
(23
)
 
(31
)
Share-based compensation expense, net of tax
 
$
69

 
$
35

 
$
46
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]
Information about stock options outstanding, vested or expected to vest, and exercisable as of February 2, 2013 is as follows:
 
 
Options Outstanding
 
Options Exercisable
Range of Exercise Prices
 
Number of
Shares as of
February 2, 2013
 
Weighted-
Average
Remaining
Contractual
Life (in years)
 
Weighted-
Average
Exercise Price
 
Number of
Shares as of
February 2, 2013
 
Weighted-
Average
Exercise Price
$11.77 - $16.44
 
2,817,605

 
4.60
 
$
15.01

 
1,981,010

 
$
15.36

$16.90 - $19.68
 
3,127,468

 
4.54
 
$
18.92

 
2,644,343

 
$
18.94

$19.72 - $21.79
 
3,176,244

 
5.86
 
$
21.60

 
1,435,212

 
$
21.42

$21.88 - $25.09
 
3,281,788

 
7.85
 
$
24.21

 
596,340

 
$
22.90

$27.43 - $36.10
 
397,250

 
9.70
 
$
34.50

 
750

 
$
28.41

 
 
12,800,355

 
5.89
 
$
20.56

 
6,657,655

 
$
18.77

Vested or expected to vest as of February 2, 2013
 
11,376,064

 
5.61
 
$
20.32

 
 
 
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair value of stock options issued during fiscal 2012, 2011, and 2010 was estimated on the date of grant using the following assumptions:
 
 
Fiscal Year
 
 
2012
 
2011
 
2010
Expected term (in years)
 
4.6

 
4.9

 
4.8

Expected volatility
 
33.6
%
 
30.6
%
 
29.0
%
Dividend yield
 
2.1
%
 
2.1
%
 
1.8
%
Risk-free interest rate
 
1.0
%
 
2.3
%
 
2.7
%
Stock Options [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Additional Information About Stock Unit Activity [Table Text Block]
A summary of additional information about stock options is as follows: 
 
 
Fiscal Year
 
 
2012
 
2011
 
2010
Weighted-average fair value per share of stock options granted
 
$
6.35

 
$
5.28

 
$
5.57

Aggregate intrinsic value of stock options exercised (in millions)
 
$
94

 
$
19

 
$
19

Fair value of stock options vested (in millions)
 
$
15

 
$
15

 
$
15
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of stock option activity under the 2011 Plan and the 2002 Plan for fiscal 2012 is as follows:
 
 
Shares
 
Weighted-
Average
Exercise Price
Balance as of January 28, 2012
 
20,597,538

 
$
19.10

Granted
 
2,467,175

 
$
26.52

Exercised
 
(9,454,063
)
 
$
18.93

Forfeited/Expired
 
(810,295
)
 
$
20.43

Balance as of February 2, 2013
 
12,800,355

 
$
20.56
Stock Units [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Additional Information About Stock Unit Activity [Table Text Block]
A summary of additional information about Stock Units is as follows:
 
 
Fiscal Year
 
 
2012
 
2011
 
2010
Weighted-average fair value per share of Stock Units granted
 
$
24.95

 
$
20.19

 
$
21.84

Grant-date fair value of Stock Units vested (in millions)
 
$
50

 
$
58

 
$
58
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of Stock Unit activity under the 2011 Plan for fiscal 2012 is as follows:
 
 
Shares
 
Weighted-Average
Grant-Date
Fair Value
Balance as of January 28, 2012
 
7,937,101

 
$
18.74

Granted
 
3,798,940

 
$
25.00

Granted, with vesting subject to performance conditions
 
2,105,971

 
$
24.84

Vested
 
(2,922,254
)
 
$
17.08

Forfeited
 
(1,554,323
)
 
$
21.82

Balance as of February 2, 2013
 
9,365,435

 
$
22.62