Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) shares in Thousands, $ in Millions	Total	Shares of Common Stock	Common Stock and Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Loss	Retained Earnings
Beginning balance (in shares) at Jul. 31, 2021		273,235
Beginning balance at Jul. 31, 2021	$ 9,869		$ 10,548	$ (12,951)	$ (24)	$ 12,296
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	2,093				(29)	2,122
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		1,593
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(348)		(348)
Stock repurchases under stock repurchase programs (in shares)		(2,445)
Stock repurchases under stock repurchase programs	(1,346)			(1,346)
Dividends and dividend rights declared	(586)					(586)
Share-based compensation expense	963		963
Issuance of stock in a business combination (in shares)		10,090
Issuance of stock in a business combination	6,316		6,316
Ending balance (in shares) at Apr. 30, 2022		282,473
Ending balance at Apr. 30, 2022	16,961		17,479	(14,297)	(53)	13,832
Beginning balance (in shares) at Jan. 31, 2022		283,000
Beginning balance at Jan. 31, 2022	15,595		17,202	(13,808)	(34)	12,235
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	1,775				(19)	1,794
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		502
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(69)		(69)
Stock repurchases under stock repurchase programs (in shares)		(1,029)
Stock repurchases under stock repurchase programs	(489)			(489)
Dividends and dividend rights declared	(197)					(197)
Share-based compensation expense	346		346
Ending balance (in shares) at Apr. 30, 2022		282,473
Ending balance at Apr. 30, 2022	16,961		17,479	(14,297)	(53)	13,832
Beginning balance (in shares) at Jul. 31, 2022		281,932
Beginning balance at Jul. 31, 2022	16,441		17,725	(14,805)	(60)	13,581
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	2,294				(1)	2,295
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		1,993
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	$ (229)		(229)
Stock repurchases under stock repurchase programs (in shares)	(3,700)	(3,658)
Stock repurchases under stock repurchase programs	$ (1,502)			(1,502)
Dividends and dividend rights declared	(676)					(676)
Share-based compensation expense	1,264		1,264
Issuance of stock in a business combination	0
Ending balance (in shares) at Apr. 30, 2023		280,267
Ending balance at Apr. 30, 2023	17,592		18,760	(16,307)	(61)	15,200
Beginning balance (in shares) at Jan. 31, 2023		280,668
Beginning balance at Jan. 31, 2023	15,842		18,392	(15,824)	(63)	13,337
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	2,089				2	2,087
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		743
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(51)		(51)
Stock repurchases under stock repurchase programs (in shares)		(1,144)
Stock repurchases under stock repurchase programs	(483)			(483)
Dividends and dividend rights declared	(224)					(224)
Share-based compensation expense	419		419
Ending balance (in shares) at Apr. 30, 2023		280,267
Ending balance at Apr. 30, 2023	$ 17,592		$ 18,760	$ (16,307)	$ (61)	$ 15,200