Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 26, 2025	Jul. 27, 2024	Jul. 29, 2023
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ 920	$ 1,914	$ 2,705
Effective income tax rate reconciliation, litigation decision, amount	(720)
Undistributed earnings of certain foreign subsidiaries on which tax is not provided	6,500
Gross reduction in unrecognized tax benefits	75	53	1,063
Unrecognized tax benefits that would affect the effective tax rate if realized	1,600
Net interest expense recognized on unrecognized tax benefits	77	21	27
Accrual for interest and penalties	497	401	523
Unrecognized tax benefit that could be reduced in next 12 months	250
Tax credit carryforward, valuation allowance	752
Settled Litigation | Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Net benefit		55	145
Decrease in interest expense		18	53
Gross reduction in unrecognized tax benefits		$ 245	$ 1,100
Federal Tax Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	284
Tax credit carryforward	7
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	2,100
Operating loss carryforwards, valuation allowance	10
Tax credit carryforward	1,800
Foreign Tax Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	533
Operating loss carryforwards, valuation allowance	96
Tax credit carryforward	$ 8