Annual report pursuant to Section 13 and 15(d)

Retirement Plans (Narrative) (Details)

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Retirement Plans (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 02, 2013
Jan. 28, 2012
Jan. 29, 2011
Number of hours required for participation in defined benefit and defined contribution plans 1,000    
Pension Plan [Member]
     
Accumulated benefit obligation for defined benefit plan $ 3,496 $ 3,178  
Amortization of net actuarial (gain) loss 142    
Unfunded commitments to certain of these investments 144 109  
Company contributions to defined benefit pension plan 150 375  
Estimated contributions to the pension plan in the next year 150    
Supplementary Retirement Plan [Member]
     
Accumulated benefit obligation for defined benefit plan 788 739  
Amortization of net actuarial (gain) loss 19    
Retirement 401 (k) [Member]
     
Employee retirement plan expense 14 10 9
Deferred Compensation, Excluding Share-based Payments and Retirement Benefits [Member]
     
Liability for deferred compensation plan reflected in other liabilities 44 45  
Minimum [Member]
     
Range of restrictions on investment redemption frequency, number of times allowed per year 2    
Minimum [Member] | Pension Plan [Member]
     
Range of investment lock-up period, in years 3    
Range of advance notice requirements for investment redemption, in days 60    
Maximum [Member]
     
Range of restrictions on investment redemption frequency, number of times allowed per year 365    
Maximum [Member] | Pension Plan [Member]
     
Range of investment lock-up period, in years 15    
Range of advance notice requirements for investment redemption, in days 90    
Change in projected benefit obligation [Member] | Pension Plan [Member]
     
Actuarial gain due to curtailment 254 0  
Change in projected benefit obligation [Member] | Supplementary Retirement Plan [Member]
     
Actuarial gain due to curtailment $ 42 $ 0  
Equity securities [Member] | Pension Plan [Member]
     
Target allocation for equity securities in defined benefit plan 55.00%    
Debt Securities [Member] | Pension Plan [Member]
     
Target allocation for equity securities in defined benefit plan 30.00%    
Real Estate Funds [Member] | Pension Plan [Member]
     
Target allocation for equity securities in defined benefit plan 10.00%    
Private equity [Member] | Pension Plan [Member]
     
Target allocation for equity securities in defined benefit plan 5.00%