Fair Value Measurements (Tables)

12 Months Ended

Jul. 31, 2025

Fair Value Disclosures [Abstract]

Financial assets and liabilities measured at fair value on recurring basis

The following table summarizes financial assets that we measured at fair value on a recurring basis at the dates indicated, classified in accordance with the fair value hierarchy described above.

	At July 31, 2025						At July 31, 2024
(In millions)	Level 1		Level 2		Total Fair Value		Level 1		Level 2		Total Fair Value
Assets:
Cash equivalents, primarily money market funds	$	1,790	$	—	$	1,790	$	2,538	$	—	$	2,538
Available-for-sale debt securities:
Corporate notes	—		502		502		—		456		456
U.S. agency securities	—		1,316		1,316		—		159		159
Total available-for-sale debt securities	—		1,818		1,818		—		615		615
Total assets measured at fair value on a recurring basis	$	1,790	$	1,818	$	3,608	$	2,538	$	615	$	3,153

Cash equivalents and available-for-sale debt and equity securities by balance sheet classification and level in the fair value hierarchy

The following table summarizes our cash equivalents and available-for-sale debt securities by balance sheet classification and level in the fair value hierarchy at the dates indicated:

	At July 31, 2025						At July 31, 2024
(In millions)	Level 1		Level 2		Total Fair Value		Level 1		Level 2		Total Fair Value
Cash equivalents:
In cash and cash equivalents	$	1,790	$	—	$	1,790	$	2,538	$	—	$	2,538
Available-for-sale debt securities:
In investments	$	—	$	1,668	$	1,668	$	—	$	465	$	465
In funds receivable and amounts held for customers	—		150		150		—		150		150
Total available-for-sale debt securities	$	—	$	1,818	$	1,818	$	—	$	615	$	615

Equity Securities without Readily Determinable Fair Value

The following table summarizes the adjustments to the carrying value of our long-term investments.

	July 31,
(In millions)	2025		2024		2023
Upward adjustments	$	11	$	4	$	—
Downward adjustments, including impairments	(51)		(2)		(6)
Net adjustments	$	(40)	$	2	$	(6)