Restructuring and Other Charges - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 25, 2025	Jan. 27, 2024	Jan. 25, 2025	Jan. 27, 2024	Jul. 27, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 10	$ 12	$ 675	$ 135
FISCAL 2025 PLAN
Restructuring Cost and Reserve [Line Items]
Percentage of global workforce impacted by restructure			7.00%
Expected pretax charges	1,000		$ 1,000
Restructuring and other charges	$ 10		$ 675
FISCAL 2024 PLAN
Restructuring Cost and Reserve [Line Items]
Cumulative restructuring charges incurred					$ 654