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EMPLOYEE BENEFITS (Details) - USD ($) $ in Millions	Dec. 27, 2025	Dec. 28, 2024
EMPLOYEE BENEFITS
Severance pay liability	$ 78	$ 62
Severance pay funds included in other long-term assets	$ 69	$ 52
Monthly deposits (in percent)	8.33%

X

- Definition

Amount of severance pay funds included in other long-term assets.

+ References

No definition available.

+ Details

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Namespace Prefix:	mbly_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Percentage of severance pay.

+ References

No definition available.

+ Details

Name:	mbly_SupplementalUnemploymentBenefitsSeveranceBenefitsPercentage
Namespace Prefix:	mbly_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Definition

Liability for amount due employees, in addition to wages and any other money that employers owe employees, when their employment ends through a layoff or other termination. For example, a company may provide involuntarily terminated employees with a lump sum payment equal to one week's salary for every year of employment.

+ References

No definition available.

+ Details

Name:	us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant