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Consolidated Statements of Cash Flows (Parenthetical) $ in Millions	Oct. 31, 2025 USD ($)
Statement of Cash Flows [Abstract]
Cash, held-for-sale	$ 8

X

- Definition

Cash, Held-For-Sale

+ References

No definition available.

+ Details

Name:	hpq_CashHeldForSale
Namespace Prefix:	hpq_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_StatementOfCashFlowsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration