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, 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)		(2,514)
Stock repurchases under stock repurchase programs	(1,019)			(1,019)
Dividends and dividend rights declared	(452)					(452)
Share-based compensation expense	845		845
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
Beginning balance (in shares) at Jul. 31, 2023		280,421
Beginning balance at Jul. 31, 2023	17,269		19,029	(16,772)	(55)	15,067
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	589				(5)	594
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		1,707
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	$ (260)		(260)
Stock repurchases under stock repurchase programs (in shares)	(2,100)	(2,103)
Stock repurchases under stock repurchase programs	$ (1,139)			(1,139)
Dividends and dividend rights declared	(521)					(521)
Share-based compensation expense	970		970
Ending balance (in shares) at Jan. 31, 2024		280,025
Ending balance at Jan. 31, 2024	16,908		19,739	(17,911)	(60)	15,140
Beginning balance (in shares) at Oct. 31, 2023		280,105
Beginning balance at Oct. 31, 2023	16,992		19,398	(17,375)	(78)	15,047
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	371				18	353
Issuance of stock under employee stock plans, net of shares withheld for employee taxes (in shares)		857
Issuance of stock under employee stock plans, net of shares withheld for employee taxes	(134)		(134)
Stock repurchases under stock repurchase programs (in shares)		(937)
Stock repurchases under stock repurchase programs	(536)			(536)
Dividends and dividend rights declared	(260)					(260)
Share-based compensation expense	475		475
Ending balance (in shares) at Jan. 31, 2024		280,025
Ending balance at Jan. 31, 2024	$ 16,908		$ 19,739	$ (17,911)	$ (60)	$ 15,140