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Fair Value Measurements (Tables)
12 Months Ended
Feb. 02, 2013
Fair Value Disclosures [Abstract]  
Fair value, assets measured on recurring basis using unobservable input
The following table presents a rollforward of our long-term investments:
 
2012
 
2011
 
(In Millions)
Balance at beginning of year
$
153

 
$
277

Sales
(109
)
 
(145
)
Unrealized gains
9

 
21

Balance at end of year
$
53

 
$
153