Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Loss	Retained Earnings
Beginning balance (in shares) at Jul. 31, 2020		261,740
Beginning balance at Jul. 31, 2020	$ 5,106	$ 3	$ 6,179	$ (11,929)	$ (32)	$ 10,885
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	2,070				8	2,062
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		2,593
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(187)		(187)
Stock repurchases under stock repurchase programs (in shares)		(2,422)
Stock repurchases under stock repurchase programs	(1,022)			(1,022)
Dividends and dividend rights declared	(651)					(651)
Share-based compensation expense	755		755
Issuance of stock in a business combination (in shares)		11,324
Issuance of stock in a business combination	3,798		3,798
Ending balance (in shares) at Jul. 31, 2021		273,235
Ending balance at Jul. 31, 2021	9,869	$ 3	10,545	(12,951)	(24)	12,296
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	2,030				(36)	2,066
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		2,361
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(448)		(448)
Stock repurchases under stock repurchase programs (in shares)		(3,754)
Stock repurchases under stock repurchase programs	(1,854)			(1,854)
Dividends and dividend rights declared	(781)					(781)
Share-based compensation expense	1,309		1,309
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 Jul. 31, 2022	281,932	281,932
Ending balance at Jul. 31, 2022	$ 16,441	$ 3	17,722	(14,805)	(60)	13,581
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	2,389				5	2,384
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		3,189
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(408)		(408)
Stock repurchases under stock repurchase programs (in shares)		(4,700)
Stock repurchases under stock repurchase programs	(1,967)			(1,967)
Dividends and dividend rights declared	(898)					(898)
Share-based compensation expense	1,712		1,712
Issuance of stock in a business combination	$ 0
Ending balance (in shares) at Jul. 31, 2023	280,421	280,421
Ending balance at Jul. 31, 2023	$ 17,269	$ 3	$ 19,026	$ (16,772)	$ (55)	$ 15,067