Non-marketable Equity Securities - Narrative (Details) - USD ($) $ in Millions	Jan. 25, 2026	Jan. 26, 2025
Investments, Debt and Equity Securities [Abstract]
Cumulative gross unrealized gains	$ 2,700	$ 1,100
Cumulative gross losses and impairments	$ 176	$ 105

Amount of cumulative gain from upward price adjustment on investment in equity security without readily determinable fair value.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479536/321-10-50-3

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant