XML 86 R71.htm IDEA: XBRL DOCUMENT v3.22.0.1

Subsequent Events (Additional Information) (Details) $ in Millions	12 Months Ended
	Dec. 25, 2021 USD ($)
Subsequent Events [Abstract]
Estimated Decrease In Research And Development Expense	$ 61

X

- Definition

Estimated decrease In Research And Development Expense

+ References

No definition available.

+ Details

Name:	grmn_EstimatedDecreaseInResearchAndDevelopmentExpense
Namespace Prefix:	grmn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration