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Intangible Assets Acquired Through Business Combinations and Goodwill - Schedule of Expected Future Amortization Expense for Purchased Intangible Assets (Details) - USD ($)
$ in Millions
Apr. 30, 2024
Jan. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]    
Remaining nine months of fiscal 2025 $ 1,153  
Fiscal 2026 1,372  
Fiscal 2027 1,005  
Fiscal 2028 628  
Fiscal 2029 496  
Thereafter 215  
Total amortization expense $ 4,869 $ 5,278