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	223				(5)	228
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		593
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(111)		(111)
Stock repurchases under stock repurchase programs (in shares)		(606)
Stock repurchases under stock repurchase programs	(338)			(338)
Dividends and dividend rights declared	(191)					(191)
Share-based compensation expense	281		281
Ending balance (in shares) at Oct. 31, 2021		273,222
Ending balance at Oct. 31, 2021	9,733		10,718	(13,289)	(29)	12,333
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	13				(27)	40
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		634
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	$ (65)		(65)
Stock repurchases under stock repurchase programs (in shares)	(1,200)	(1,238)
Stock repurchases under stock repurchase programs	$ (519)			(519)
Dividends and dividend rights declared	(225)					(225)
Share-based compensation expense	422		422
Ending balance (in shares) at Oct. 31, 2022		281,328
Ending balance at Oct. 31, 2022	$ 16,067		$ 18,082	$ (15,324)	$ (87)	$ 13,396