Annual report pursuant to Section 13 and 15(d)

Postretirement Health Care and Life Insurance Benefits (Net Periodic Benefit Cost) (Details)

v2.4.0.6
Postretirement Health Care and Life Insurance Benefits (Net Periodic Benefit Cost) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 02, 2013
Jan. 28, 2012
Postretirement Obligations
Jan. 29, 2011
Postretirement Obligations
Jan. 30, 2010
Postretirement Obligations
Jan. 28, 2012
Postretirement Obligations
Other Comprehensive Income [Member]
Jan. 29, 2011
Postretirement Obligations
Other Comprehensive Income [Member]
Jan. 30, 2010
Postretirement Obligations
Other Comprehensive Income [Member]
Jan. 28, 2012
Net Periodic Postretirement Benefit Cost [Member]
Postretirement Obligations
Jan. 29, 2011
Net Periodic Postretirement Benefit Cost [Member]
Postretirement Obligations
Jan. 30, 2010
Net Periodic Postretirement Benefit Cost [Member]
Postretirement Obligations
Service cost               $ 0 $ 0 $ 0
Interest cost               14 15 19
Amortization of net actuarial (gain) loss 3       5 5 7 (5) (5) (7)
Amortization of prior service credit         0 0 0 0 0 0
Total net periodic benefit cost               9 10 12
Net actuarial (gain) loss         (3) 8 8      
Total recognized in other comprehensive income         2 13 15      
Total recognized in net periodic benefit cost and other comprehensive income   $ 11 $ 23 $ 27