v3.26.1
Fair Value Measurement - Narrative (Details) - USD ($)
$ in Billions
Jul. 31, 2026
Jan. 31, 2026
Significant Unobservable Inputs (Level 3) | Fair value, non-recurring | Privately held equity securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments, fair value $ 11.3 $ 7.6