Acquisitions - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Mar. 18, 2024	Jul. 26, 2025	Jul. 27, 2024	Jul. 29, 2023
Business Combination [Line Items]
Purchase Consideration			$ 28,460
Net Tangible Assets Acquired (Liabilities Assumed)			(2,808)
Purchased Intangible Assets		$ 121	11,050
Goodwill			20,218
Total transaction costs		12	104	$ 26
Future compensation expense & contingent consideration (up to)		618
Splunk
Business Combination [Line Items]
Purchase Consideration	$ 27,090		27,090
Net Tangible Assets Acquired (Liabilities Assumed)			(2,761)
Purchased Intangible Assets			10,550
Goodwill			19,301
Acquisition price (in dollars per share)	$ 157
Equity value of acquisition	$ 27,000
Revenue since date of acquisition			1,400
Net loss since date of acquisition			(557)
Total transaction costs	$ 82		79
Acquisitions
Business Combination [Line Items]
Purchase Consideration		293	1,370	315
Net Tangible Assets Acquired (Liabilities Assumed)		(21)	(47)	(18)
Purchased Intangible Assets		121	500	150
Goodwill		193	917	183
Cash and cash equivalents acquired		$ 15	$ 24	$ 7