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]
Repurchase of common stock (in shares)	(12)
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. 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	5,443			5,443
Other comprehensive income (loss)	36				36
Issuance of common stock (in shares)		30
Issuance of common stock	316		316
Repurchase of common stock (in shares)		(38)
Repurchase of common stock	(1,758)		(394)	(1,364)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(7)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(310)		(310)
Cash dividends declared	(3,120)			(3,120)
Share-based compensation	1,097		1,097
Other	(3)		1	(4)
Ending balance (in shares) at Jan. 28, 2023		4,095
Ending balance at Jan. 28, 2023	41,474		43,424	(364)	(1,586)
Beginning balance (in shares) at Oct. 29, 2022		4,103
Beginning balance at Oct. 29, 2022	40,272		42,984	(594)	(2,118)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,773			2,773
Other comprehensive income (loss)	532				532
Issuance of common stock (in shares)		23
Issuance of common stock	$ 316		316
Repurchase of common stock (in shares)	(26)	(26)
Repurchase of common stock	$ (1,256)		(276)	(980)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(5)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(202)		(202)
Cash dividends declared	(1,560)			(1,560)
Share-based compensation	601		601
Other	(2)		1	(3)
Ending balance (in shares) at Jan. 28, 2023		4,095
Ending balance at Jan. 28, 2023	41,474		43,424	(364)	(1,586)
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]
Repurchase of common stock (in shares)	(23)
Ending balance (in shares) at Oct. 28, 2023		4,049
Ending balance at Oct. 28, 2023	$ 45,210		44,546	2,689	(2,025)
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	6,272			6,272
Other comprehensive income (loss)	63				63
Issuance of common stock (in shares)		43
Issuance of common stock	349		349
Repurchase of common stock (in shares)		(48)
Repurchase of common stock	(2,506)		(528)	(1,978)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(11)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(581)		(581)
Cash dividends declared	(3,163)			(3,163)
Share-based compensation	1,463		1,463
Other	1		10	(9)
Ending balance (in shares) at Jan. 27, 2024		4,050
Ending balance at Jan. 27, 2024	46,251		45,002	2,761	(1,512)
Beginning balance (in shares) at Oct. 28, 2023		4,049
Beginning balance at Oct. 28, 2023	45,210		44,546	2,689	(2,025)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,634			2,634
Other comprehensive income (loss)	513				513
Issuance of common stock (in shares)		34
Issuance of common stock	$ 349		349
Repurchase of common stock (in shares)	(25)	(25)
Repurchase of common stock	$ (1,254)		(279)	(975)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(8)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(425)		(425)
Cash dividends declared	(1,583)			(1,583)
Share-based compensation	802		802
Other	5		9	(4)
Ending balance (in shares) at Jan. 27, 2024		4,050
Ending balance at Jan. 27, 2024	$ 46,251		$ 45,002	$ 2,761	$ (1,512)