v3.26.1
Income Taxes - Change in Valuation Allowance for Deferred Tax Assets (Details) - Deferred tax asset valuation allowance - USD ($)
$ in Millions
12 Months Ended
Jul. 25, 2026
Jul. 26, 2025
Jul. 27, 2024
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of fiscal year $ 910 $ 1,024 $ 754
Additions 498 33 148
Additions from Splunk 0 0 147
Deductions (2) (4) (4)
Write-offs 0 (145) (20)
Foreign exchange and other 2 2 (1)
Balance at end of fiscal year $ 1,408 $ 910 $ 1,024