Redeemable Noncontrolling Interests - Summary of the Ownership and Economic Interest in FTW LLC (Details) - shares	Jun. 26, 2021	Dec. 26, 2020
Continuing LLC Owners And Management Owners
Minority Interest [Line Items]
Unit Outstanding	271.3	272.5
LLC Units and vested MIUs
Minority Interest [Line Items]
Unit Outstanding	437.3	433.8
Ownership percentage by noncontrolling owners	100.00%	100.00%
McAfee Corp.
Minority Interest [Line Items]
Unit Outstanding	166.0	161.3
McAfee Corp. | LLC Units
Minority Interest [Line Items]
Ownership percentage by noncontrolling owners	38.00%	37.20%
McAfee Corp. | Foundation Technology Worldwide L L C
Minority Interest [Line Items]
Ownership percentage by noncontrolling owners	62.00%	62.80%