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Balance Sheet Details - Allowance for Doubtful Accounts (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jan. 31, 2025
Apr. 30, 2025
Accounts Receivable, Allowance for Credit Loss    
Balance at beginning of year $ 10 $ 10
Provision for credit losses 41 7
Adjustments to existing allowances, including write offs $ (68) (7)
Balance at end of year   $ 10