Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Shares of Common Stock	Common Stock and Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Jul. 30, 2022		4,110
Beginning balance at Jul. 30, 2022	$ 39,773		$ 42,714	$ (1,319)	$ (1,622)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,670			2,670
Other comprehensive loss	(496)				(496)
Issuance of common stock (in shares)		7
Issuance of common stock	$ 0		0
Repurchase of common stock (in shares)	(12)	(12)
Repurchase of common stock	$ (502)		(118)	(384)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(2)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(108)		(108)
Cash dividends declared	(1,560)			(1,560)
Share-based compensation	496		496
Other	(1)		0	(1)
Ending balance (in shares) at Oct. 29, 2022		4,103
Ending balance at Oct. 29, 2022	40,272		42,984	(594)	(2,118)
Beginning balance (in shares) at Jul. 29, 2023		4,066
Beginning balance at Jul. 29, 2023	44,353		44,289	1,639	(1,575)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,638			3,638
Other comprehensive loss	(450)				(450)
Issuance of common stock (in shares)		9
Issuance of common stock	$ 0		0
Repurchase of common stock (in shares)	(23)	(23)
Repurchase of common stock	$ (1,252)		(249)	(1,003)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(3)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(156)		(156)
Cash dividends declared	(1,580)			(1,580)
Share-based compensation	661		661
Other	(4)		1	(5)
Ending balance (in shares) at Oct. 28, 2023		4,049
Ending balance at Oct. 28, 2023	$ 45,210		$ 44,546	$ 2,689	$ (2,025)