Annual report pursuant to Section 13 and 15(d)

Retirement Plans (Narrative) (Details)

v2.4.0.6
Retirement Plans (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended 12 Months Ended
Feb. 02, 2013
Jan. 28, 2012
Jan. 28, 2012
Pension Plan [Member]
Jan. 29, 2011
Pension Plan [Member]
Jan. 28, 2012
Supplementary Retirement Plan [Member]
Jan. 29, 2011
Supplementary Retirement Plan [Member]
Jan. 28, 2012
Deferred Compensation Plan [Member]
Jan. 29, 2011
Deferred Compensation Plan [Member]
Jan. 28, 2012
Retirement 401 (k) [Member]
Jan. 29, 2011
Retirement 401 (k) [Member]
Jan. 30, 2010
Retirement 401 (k) [Member]
Jan. 28, 2012
Minimum [Member]
Pension Plan [Member]
Y
D
Jan. 28, 2012
Maximum [Member]
Pension Plan [Member]
D
Y
Amortization of net actuarial (gain) loss $ 3   $ 139   $ 16                
Number of hours required for participation in defined benefit and defined contribution plans   1,000                      
Accumulated benefit obligation for defined benefit plan     3,178 2,791 739 645              
Estimated prior service cost that will be amortized from AOCI into net periodic cost     (1)   (1)                
Target allocation for equity securities in defined benefit plan     55.00%                    
Target allocation for debt securities in defined benefit plan     30.00%                    
Target allocation for real estate in defined benefit plan     10.00%                    
Target allocation for private equities in defined benefit plan     5.00%                    
Range of investment lock-up period, in years                       3 15
Range of restrictions on investment redemption frequency, number of times allowed per year                       2 365
Range of advance notice requirements for investment redemption, in days                       60 90
Unfunded commitments to certain of these investments     109 133                  
Company contributions to defined benefit pension plan     375 825                  
Estimated contributions to the pension plan in the next year     150                    
Employee savings plan expense                 10 9 9    
Liability for deferred compensation plan reflected in other liabilities             45 46          
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)     $ 1   $ 1