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Derivative Instruments - Narrative (Details) - USD ($)
$ in Millions
Jan. 31, 2023
Jan. 31, 2022
Derivatives, Fair Value [Line Items]    
Gain expected to be recognized in next 24 months $ 64  
Designated as hedging instrument    
Derivatives, Fair Value [Line Items]    
Derivative, notional amount 934 $ 1,080
Derivatives not designated as hedging instruments | Foreign Exchange Contract    
Derivatives, Fair Value [Line Items]    
Derivative, notional amount $ 951 $ 542