Balance Sheet Details - Schedule of Severance Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2026	Apr. 30, 2025	Oct. 31, 2025
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 37	$ 164	$ 82	$ 241	$ 418
Cost of sales
Restructuring Cost and Reserve [Line Items]
Severance costs	7	62	12	63
Research and development
Restructuring Cost and Reserve [Line Items]
Severance costs	3	23	7	31
Selling, general and administrative
Restructuring Cost and Reserve [Line Items]
Severance costs	17	79	26	147
Acquisition, disposition and other charges
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 10	$ 0	$ 37	$ 0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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