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Derivative Financial Instrument Summary of notional value of foreign currency forward contracts (Tables)
3 Months Ended
Apr. 29, 2018
Derivative [Line Items]  
Schedule of Notional Amounts of Outstanding Derivative Positions
 
April 29,
2018
 
January 28,
2018
 
(In millions)
Designated as cash flow hedges
$
216

 
$
104

Not designated for hedge accounting
$
76

 
$
94