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Income Taxes Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 20, 2021	Mar. 21, 2020	Dec. 26, 2020
Income Tax Disclosure [Abstract]
Swiss Tax Reform (TRAF)	$ 0	$ 0	$ 72

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- Definition

Swiss Tax Reform (TRAF)

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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