Investments - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 25, 2025	Oct. 26, 2024	Jul. 26, 2025
Schedule of Investments [Line Items]
Marketable equity securities	$ 394		$ 383
Net unrealized gain (loss) on marketable securities	30	$ 25
Funding commitments	500
Equity interests held in certain private equity funds	700		600
Investments in privately held companies	2,100		1,900
Variable Interest Entity, Not Primary Beneficiary
Schedule of Investments [Line Items]
Investments in privately held companies	800
NCI equity	206		162
Private equity funds | Fair value measured at NAV per share
Schedule of Investments [Line Items]
Equity interests held in certain private equity funds	$ 700		$ 700