Income Tax - Additional Information (Details) - USD ($) $ in Millions	Jun. 26, 2021	Dec. 26, 2020
Tax Receivable Agreement | McAfee Corp. Stockholders' Equity
Income Tax Contingency [Line Items]
Accounts payable and other current liabilities	$ 2
Accounts payable and other non current liabilities	12
Deferred tax assets, corresponding to income tax benefit	125
Tax Receivable Agreement | McAfee Corp. Stockholders' Equity | Maximum
Income Tax Contingency [Line Items]
Deferred tax liabilities, long-term tax receivable agreement liability and expense	260
Tax Receivable Agreement | McAfee Corp. Stockholders' Equity | Minimum
Income Tax Contingency [Line Items]
Deferred tax liabilities, long-term tax receivable agreement liability and expense	170
Other Long-term Liabilities
Income Tax Contingency [Line Items]
Uncertain tax positions, including interest and penalties	$ 7	$ 16