XML 73 R61.htm IDEA: XBRL DOCUMENT v3.20.2
Derivatives and Hedging Activities (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 31, 2020
Aug. 02, 2019
Jul. 31, 2020
Aug. 02, 2019
Jan. 31, 2020
Derivative [Line Items]          
Combined gain (loss) on settlement of forward contracts and the underlying foregin currency denominated assets and liabilities $ 12 $ 12 $ 13 $ 18  
Foreign Exchange Forward          
Derivative [Line Items]          
Gain (loss) on forward contracts not designated as hedging instruments (48) $ 26 $ (33) $ 53  
Foreign Exchange Forward | Not Designated As Hedging Instrument          
Derivative [Line Items]          
Forward contract maturity     1 month    
Notional amount 3,800   $ 3,800   $ 1,100
Cash Flow Hedging | Foreign Exchange Forward | Designated As Hedging Instrument          
Derivative [Line Items]          
Notional amount $ 254   $ 254   $ 480
Cash Flow Hedging | Foreign Exchange Forward | Designated As Hedging Instrument | Maximum          
Derivative [Line Items]          
Forward contract maturity     12 months