Cash and Cash Equivalents, Investments, and Funds Receivable and Amounts Held for Customers - Classified by the Stated Maturity Date (Details) - USD ($) $ in Millions	Jan. 31, 2023	Jul. 31, 2022
Amortized Cost
Due within one year	$ 375	$ 316
Due within two years	230	298
Due within three years	129	79
Due after three years	0	1
Total available-for-sale debt securities	734	694
Fair Value
Due within one year	371	313
Due within two years	225	293
Due within three years	128	78
Due after three years	0	1
Total available-for-sale debt securities	$ 724	$ 685