Borrowings - Schedule of Short-Term Debt (Details) - USD ($) $ in Millions	Oct. 26, 2024	Jul. 27, 2024
Short-term Debt [Line Items]
Short-term debt	$ 12,364	$ 11,341
Senior Notes
Short-term Debt [Line Items]
Short-term debt	$ 493	$ 488
Effective Rate	6.17%	6.66%
Commercial paper
Short-term Debt [Line Items]
Short-term debt	$ 11,870	$ 10,853
Effective Rate	5.19%	5.43%
Current portion of other debt
Short-term Debt [Line Items]
Short-term debt	$ 1	$ 0
Effective Rate	1.13%	0.00%