Cash and Cash Equivalents, Investments, and Funds Receivable and Amounts Held for Customers - Classified by the Stated Maturity Date (Details) - USD ($) $ in Millions	Oct. 31, 2022	Jul. 31, 2022
Amortized Cost
Due within one year	$ 458	$ 316
Due within two years	263	298
Due within three years	95	79
Due after three years	0	1
Total available-for-sale debt securities	816	694
Fair Value
Due within one year	453	313
Due within two years	254	293
Due within three years	92	78
Due after three years	0	1
Total available-for-sale debt securities	$ 799	$ 685