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. 27, 2024	Apr. 29, 2023	Apr. 27, 2024	Apr. 29, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	$ (68)	$ (54)	$ (127)	$ 37
Foreign currency derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	(84)	(46)	(161)	22
Total return swaps—deferred compensation
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	16	(12)	33	7
Equity derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses)	$ 0	$ 4	$ 1	$ 8