Acquired Intangible Assets - Intangible Assets Acquired (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Oct. 31, 2022	Jul. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Cost	$ 8,531	$ 8,531
Accumulated amortization	(1,632)	(1,470)
Acquired intangible assets, net	$ 6,899	$ 7,061
Weighted average life in years	13 years	13 years
Customer Lists / User Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Cost	$ 6,197	$ 6,197
Accumulated amortization	(855)	(748)
Acquired intangible assets, net	$ 5,342	$ 5,449
Weighted average life in years	14 years	14 years
Purchased Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Cost	$ 1,612	$ 1,612
Accumulated amortization	(634)	(593)
Acquired intangible assets, net	$ 978	$ 1,019
Weighted average life in years	8 years	8 years
Trade Names and Logos
Acquired Finite-Lived Intangible Assets [Line Items]
Cost	$ 680	$ 680
Accumulated amortization	(101)	(87)
Acquired intangible assets, net	$ 579	$ 593
Weighted average life in years	13 years	13 years
Covenants Not to Compete or Sue
Acquired Finite-Lived Intangible Assets [Line Items]
Cost	$ 42	$ 42
Accumulated amortization	(42)	(42)
Acquired intangible assets, net	$ 0	$ 0
Weighted average life in years	0 years	0 years