Business Combinations - Schedule of preliminary allocation of purchase price (Details) - USD ($) $ in Millions	Jul. 31, 2023	Jul. 31, 2022	Nov. 01, 2021	Jul. 31, 2021	Dec. 03, 2020
Business Acquisition [Line Items]
Goodwill	$ 13,780	$ 13,736		$ 5,613
The Rocket Science Group, LLC (Mailchimp)
Business Acquisition [Line Items]
Cash and cash equivalents			$ 42
Investments			126
Accounts receivable, net			25
Income taxes receivable			1
Prepaid expenses and other current assets			24
Long-term investments			1
Property and equipment, net			15
Operating lease right-of-use assets			31
Goodwill			8,102
Intangible assets			4,340
Long-term deferred income tax assets			6
Other assets			1
Accounts payable			(163)
Accrued compensation and related liabilities			(409)
Deferred revenue			(52)
Other current liabilities			(69)
Long-term portion of operating lease liabilities			(20)
Other long-term obligations			(5)
Total purchase price allocation			$ 11,996
Credit Karma
Business Acquisition [Line Items]
Cash and cash equivalents					$ 436
Accounts receivable, net					141
Income taxes receivable					59
Prepaid expenses and other current assets					7
Long-term investments					3
Property and equipment, net					63
Operating lease right-of-use assets					167
Goodwill					3,898
Intangible assets					3,372
Other assets					81
Accounts payable					(86)
Accrued compensation and related liabilities					(113)
Other current liabilities					(24)
Operating lease liabilities					(172)
Long-term deferred income tax liabilities					(627)
Other long-term obligations					(10)
Total purchase price allocation					$ 7,195