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	318				(10)	328
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		1,091
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(279)		(279)
Stock repurchases under stock repurchase programs (in shares)		(1,416)
Stock repurchases under stock repurchase programs	(857)			(857)
Dividends and dividend rights declared	(389)					(389)
Share-based compensation expense	617		617
Issuance of stock in business combination (in shares)		10,090
Issuance of common stock in business combinations	6,316		6,316
Ending balance (in shares) at Jan. 31, 2022		283,000
Ending balance at Jan. 31, 2022	15,595		17,202	(13,808)	(34)	12,235
Beginning balance (in shares) at Oct. 31, 2021		273,222
Beginning balance at Oct. 31, 2021	9,733		10,718	(13,289)	(29)	12,333
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	95				(5)	100
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		498
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(168)		(168)
Stock repurchases under stock repurchase programs (in shares)		(810)
Stock repurchases under stock repurchase programs	(519)			(519)
Dividends and dividend rights declared	(198)					(198)
Share-based compensation expense	336		336
Issuance of stock in business combination (in shares)		10,090
Issuance of common stock in business combinations	6,316		6,316
Ending balance (in shares) at Jan. 31, 2022		283,000
Ending balance at Jan. 31, 2022	15,595		17,202	(13,808)	(34)	12,235
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	205				(3)	208
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		1,250
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	$ (178)		(178)
Stock repurchases under stock repurchase programs (in shares)	(2,500)	(2,514)
Stock repurchases under stock repurchase programs	$ (1,019)			(1,019)
Dividends and dividend rights declared	(452)					(452)
Share-based compensation expense	845		845
Issuance of common stock in business combinations	0
Ending balance (in shares) at Jan. 31, 2023		280,668
Ending balance at Jan. 31, 2023	15,842		18,392	(15,824)	(63)	13,337
Beginning balance (in shares) at Oct. 31, 2022		281,328
Beginning balance at Oct. 31, 2022	16,067		18,082	(15,324)	(87)	13,396
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	192				24	168
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		616
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(113)		(113)
Stock repurchases under stock repurchase programs (in shares)		(1,276)
Stock repurchases under stock repurchase programs	(500)			(500)
Dividends and dividend rights declared	(227)					(227)
Share-based compensation expense	423		423
Ending balance (in shares) at Jan. 31, 2023		280,668
Ending balance at Jan. 31, 2023	$ 15,842		$ 18,392	$ (15,824)	$ (63)	$ 13,337