Derivative Instruments - Effect of Derivative Instruments Not Designated as Hedges on Consolidated Statements of Operations (Details) - Derivatives not designated as hedging instruments: - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 26, 2025	Apr. 27, 2024	Apr. 26, 2025	Apr. 27, 2024
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	$ 58	$ (68)	$ (4)	$ (127)
Foreign currency derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	163	(84)	68	(161)
Total return swaps—deferred compensation
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	(105)	16	(72)	33
Equity derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	$ 0	$ 0	$ 0	$ 1