Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Jul. 26, 2025	Jul. 27, 2024
ASSETS
Inventory write-downs and capitalization	$ 532	$ 530
Deferred foreign income	221	277
IPR&D and purchased intangible assets	961	1,039
Depreciation	242	184
Deferred revenue	1,933	2,034
Credits and net operating loss carryforwards	1,350	1,863
Share-based compensation expense	319	297
Accrued compensation	175	275
Lease liabilities	379	308
Capitalized research expenditures	4,182	3,030
Other	678	559
Gross deferred tax assets	10,972	10,396
Valuation allowance	(910)	(1,024)
Total deferred tax assets	10,062	9,372
LIABILITIES
Goodwill and purchased intangible assets	(2,288)	(2,808)
ROU lease assets	(315)	(259)
Other	(178)	(119)
Total deferred tax liabilities	(2,781)	(3,186)
Total net deferred tax assets	$ 7,281	$ 6,186