Goodwill and Acquired Intangible Assets - Schedule of Intangible Assets Acquired (Details) - USD ($) $ in Millions	Oct. 31, 2025	Jul. 31, 2025
Intangible Asset, Acquired, Finite-Lived [Line Items]
Cost	$ 8,643	$ 8,643
Accumulated amortization	(3,507)	(3,341)
Total expected future amortization expense	$ 5,136	$ 5,302
Weighted-average life in years	13 years	13 years
Customer and User Relationships
Intangible Asset, Acquired, Finite-Lived [Line Items]
Cost	$ 6,198	$ 6,198
Accumulated amortization	(2,142)	(2,034)
Total expected future amortization expense	$ 4,056	$ 4,164
Weighted-average life in years	14 years	14 years
Purchased Technology
Intangible Asset, Acquired, Finite-Lived [Line Items]
Cost	$ 1,765	$ 1,765
Accumulated amortization	(1,105)	(1,061)
Total expected future amortization expense	$ 660	$ 704
Weighted-average life in years	8 years	8 years
Trade Names and Logos
Intangible Asset, Acquired, Finite-Lived [Line Items]
Cost	$ 680	$ 680
Accumulated amortization	(260)	(246)
Total expected future amortization expense	$ 420	$ 434
Weighted-average life in years	13 years	13 years