Quarterly report pursuant to Section 13 or 15(d)

Retirement Benefit Plans (Defined Contribution Plans) (Details)

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Retirement Benefit Plans (Defined Contribution Plans) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 02, 2013
Oct. 27, 2012
Nov. 02, 2013
Oct. 27, 2012
Retirement Benefit Plans        
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments   $ 7    
Defined contribution plan, total expense $ 12 $ 13 $ 38 $ 43