Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Computation Of Basic and Diluted Earnings Per Share) (Details)

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Earnings Per Share (Computation Of Basic and Diluted Earnings Per Share) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
Apr. 28, 2012
Apr. 30, 2011
Earnings Per Share [Abstract]    
Net income (loss) $ 181 $ 131
Net income (loss) available to common stockholders, basic 181 131
Net income (loss) available to common stockholders, diluted $ 181 $ 131
Basic earnings per share $ 0.43 $ 0.31
Diluted earnings per share $ 0.43 $ 0.30
Average number of shares issued, basic 415.4 424.1
Shares to be issued under deferred compensation plans 1.7 1.0
Average number of shares outstanding, basic 417.1 425.1
Effect of dilutive securities-stock options, restricted stock and restricted stock units 7.2 4.9
Average number of shares outstanding, diluted 424.3 430.0