Annual report pursuant to Section 13 and 15(d)

Retirement Plans (Net Periodic Benefit Cost) (Details)

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Retirement Plans (Net Periodic Benefit Cost) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 01, 2014
Feb. 02, 2013
Jan. 28, 2012
Supplementary Retirement Plan [Member]
     
Total recognized in net periodic benefit cost and other comprehensive income $ 29 $ 75 $ 132
Supplementary Retirement Plan [Member] | Other Comprehensive Income [Member]
     
Amortization of net actuarial (gain) loss (19) (17) (8)
Net actuarial (gain) loss (17) 34 90
Amortization of prior service credit 0 1 1
Total recognized in other comprehensive income (28) 18 83
Supplementary Retirement Plan [Member] | Net Periodic Pension Cost [Member]
     
Service cost 6 6 6
Interest cost 32 35 36
Amortization of net actuarial (gain) loss 19 17 8
Amortization of prior service credit 0 (1) (1)
Total net periodic benefit cost 57 57 49
Pension Plan [Member]
     
Total recognized in net periodic benefit cost and other comprehensive income (241) (70) 544
Pension Plan [Member] | Other Comprehensive Income [Member]
     
Amortization of net actuarial (gain) loss (141) (141) (88)
Net actuarial (gain) loss (254) (91) 530
Amortization of prior service credit 0 1 1
Total recognized in other comprehensive income (395) (231) 443
Pension Plan [Member] | Net Periodic Pension Cost [Member]
     
Service cost 112 117 102
Interest cost 143 157 160
Expected return on assets (242) (253) (248)
Amortization of net actuarial (gain) loss 141 141 88
Amortization of prior service credit 0 (1) (1)
Total net periodic benefit cost $ 154 $ 161 $ 101