Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Oct. 31, 2025	Jul. 31, 2025
Statement of Financial Position [Abstract]
Allowance for credit loss	$ 24	$ 24
Ordinary shares, par value (in pound sterling per share)	$ 0.0001	$ 0.0001
Ordinary shares, shares authorized (in shares)	500,000,000	500,000,000
Ordinary shares, shares issued (in shares)	201,343,253	201,343,253
Treasury stock (in shares)	5,447,701	4,759,053