Equity Method Investments - Allocation of Proportionate Share of Net Assets (Details) - H3C $ in Millions	Oct. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Equity method goodwill	$ 1,674
Intangible assets	749
In-process research and development	188
Deferred tax liabilities	(152)
Other	75
Basis difference	$ 2,534