Summary of significant accounting policies (Tables)

3 Months Ended

Oct. 31, 2025

Accounting Policies [Abstract]

Schedule of Cash and Cash Equivalents

	As of
(In millions)	October 31, 2025	July 31, 2025
Cash and cash equivalents	$526	$674
Restricted cash	29	33
Total cash, cash equivalents and restricted cash	$555	$707