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Derivative Financial Instruments - Additional Information (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 31, 2015
Nov. 01, 2014
Oct. 31, 2015
Nov. 01, 2014
Jan. 31, 2015
Derivative [Line Items]          
Derivative liabilities, net of amount subject to master netting arrangement $ 3 $ 0 $ 3 $ 0 $ 0
Derivative assets, net of amount subject to master netting arrangement 79 96 79 96 156
Amounts Subject to Enforceable Master Netting Arrangements 5 2 5 2 $ 1
Derivatives in cash flow hedging relationships          
Derivative [Line Items]          
Amounts recorded as a result of hedge ineffectiveness 0 0 0 0  
Amounts recorded in net income as a result of discontinuance of cash flow hedges 0 0 0 0  
Amounts recorded in net income as a result of hedge components excluded from the assessment of cash flow hedge effectiveness 0 0 0 0  
Derivatives in net investment hedging relationships          
Derivative [Line Items]          
Amounts recorded as a result of hedge ineffectiveness 0 0 0 0  
Amounts recorded in net income as a result of discontinuance of net investment hedges 0 0 0 0  
Amounts recorded in net income as a result of hedge components excluded from the assessment of net investment hedge effectiveness 0 0 0 0  
Gain or loss reclassified from OCI into income for derivatives in net investment hedging relationships 0 0 0 0  
Operating Expenses [Member] | Foreign Exchange Forward Contract | Derivatives in cash flow hedging relationships          
Derivative [Line Items]          
Gain or loss reclassified from OCI into income for derivatives in net investment hedging relationships 2 2 5 4  
Operating Expenses [Member] | Foreign Exchange Forward Contract | Not Designated as Hedging Instrument          
Derivative [Line Items]          
Derivative, Gain (Loss) on Derivative, Net $ 0 $ 8 $ 0 $ 6