Financial Instruments (Details) - USD ($) $ in Millions	Dec. 26, 2020	Dec. 28, 2019
Investments, Debt and Equity Securities [Abstract]
Accumulated gains or losses on private company investments	$ 1.2	$ (4.3)

Accumulated gains or losses on private company investments

No definition available.

Name:	mxim_Accumulatedgainsorlossesonprivatecompanyinvestments
Namespace Prefix:	mxim_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant