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Investments - Schedule of Strategic Investments (Details) - USD ($)
$ in Millions
Apr. 30, 2024
Jan. 31, 2024
Investment Holdings [Line Items]    
Strategic investments $ 4,978 $ 4,848
Variable Interest Entity, Not Primary Beneficiary    
Investment Holdings [Line Items]    
Strategic investments 436 382
Equity securities    
Investment Holdings [Line Items]    
Strategic investments 4,845 4,767
Debt securities and other investments    
Investment Holdings [Line Items]    
Strategic investments 133 81
Fair Value    
Investment Holdings [Line Items]    
Strategic investments 83 80
Fair Value | Equity securities    
Investment Holdings [Line Items]    
Strategic investments 83 80
Fair Value | Debt securities and other investments    
Investment Holdings [Line Items]    
Strategic investments 0 0
Measurement Alternative    
Investment Holdings [Line Items]    
Strategic investments 4,629 4,557
Measurement Alternative | Equity securities    
Investment Holdings [Line Items]    
Strategic investments 4,629 4,557
Measurement Alternative | Debt securities and other investments    
Investment Holdings [Line Items]    
Strategic investments 0 0
Other    
Investment Holdings [Line Items]    
Strategic investments 266 211
Other | Equity securities    
Investment Holdings [Line Items]    
Strategic investments 133 130
Other | Debt securities and other investments    
Investment Holdings [Line Items]    
Strategic investments $ 133 $ 81