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	8,655			8,655
Other comprehensive income (loss)	16				16
Issuance of common stock (in shares)		38
Issuance of common stock	316		316
Repurchase of common stock (in shares)		(63)
Repurchase of common stock	(3,017)		(664)	(2,353)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(10)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(449)		(449)
Cash dividends declared	(4,713)			(4,713)
Share-based compensation	1,720		1,720
Other	(6)		2	(8)
Ending balance (in shares) at Apr. 29, 2023		4,075
Ending balance at Apr. 29, 2023	42,295		43,639	262	(1,606)
Beginning balance (in shares) at Jan. 28, 2023		4,095
Beginning balance at Jan. 28, 2023	41,474		43,424	(364)	(1,586)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,212
Other comprehensive income (loss)	(20)				(20)
Issuance of common stock (in shares)		8
Issuance of common stock	$ 0		0
Repurchase of common stock (in shares)	(25)	(25)
Repurchase of common stock	$ (1,259)		(270)	(989)
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	(139)		(139)
Cash dividends declared	(1,593)			(1,593)
Share-based compensation	623		623
Other	(3)		1	(4)
Ending balance (in shares) at Apr. 29, 2023		4,075
Ending balance at Apr. 29, 2023	$ 42,295		43,639	262	(1,606)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase of common stock (in shares)	(25)
Ending balance (in shares) at Jul. 29, 2023		4,066
Ending balance at Jul. 29, 2023	$ 44,353		44,289	1,639	(1,575)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,158			8,158
Other comprehensive income (loss)	(55)				(55)
Issuance of common stock (in shares)		54
Issuance of common stock	347		347
Repurchase of common stock (in shares)		(74)
Repurchase of common stock	(3,762)		(811)	(2,951)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(15)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(767)		(767)
Cash dividends declared	(4,778)			(4,778)
Share-based compensation	2,274		2,274
Other	(2)		11	(13)
Ending balance (in shares) at Apr. 27, 2024		4,031
Ending balance at Apr. 27, 2024	45,768		45,343	2,055	(1,630)
Beginning balance (in shares) at Jan. 27, 2024		4,050
Beginning balance at Jan. 27, 2024	46,251		45,002	2,761	(1,512)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,886			1,886
Other comprehensive income (loss)	(118)				(118)
Issuance of common stock (in shares)		11
Issuance of common stock	$ (2)		(2)
Repurchase of common stock (in shares)	(26)	(26)
Repurchase of common stock	$ (1,256)		(283)	(973)
Shares repurchased for tax withholdings on vesting of restricted stock units and other (in shares)		(4)
Shares repurchased for tax withholdings on vesting of restricted stock units and other	(186)		(186)
Cash dividends declared	(1,615)			(1,615)
Share-based compensation	811		811
Other	(3)		1	(4)
Ending balance (in shares) at Apr. 27, 2024		4,031
Ending balance at Apr. 27, 2024	$ 45,768		$ 45,343	$ 2,055	$ (1,630)