Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Accumulated Other Comprehensive Income/ (Loss) (Details)

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Stockholders' Equity (Accumulated Other Comprehensive Income/ (Loss) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 01, 2014
Feb. 02, 2013
Jan. 28, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Net unrealized gain/(loss) on REITs, Net of Tax Amount $ 0 $ 17 $ 165
Balance as of the beginning of the period 3,171 4,010 5,460
Current period change, REITs (17) (148)  
Current period change, accumulated other comprehensive income/(loss) 490 91 (404)
Balance as of the end of the period 3,087 3,171 4,010
Net Actuarial Gain/(Loss) [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax (609) (1,121) (1,397)
Current period change, pension and postretirement benefits 512 276  
Prior Service Credit/(Cost) [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax (19) (14) 23
Current period change, pension and postretirement benefits (5) (37)  
Accumulated Other Comprehensive Income/(Loss) [Member]
     
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance as of the beginning of the period (1,118) (1,209) (805)
Current period change, accumulated other comprehensive income/(loss) 490 91 (404)
Balance as of the end of the period $ (628) $ (1,118) $ (1,209)