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Income Taxes - Summary of Income Tax Examinations (Details)	12 Months Ended
	Dec. 28, 2018
SWITZERLAND
Income Taxes [Line Items]
Income Tax Examination, Year under Examination	2017
Minimum | US Federal
Income Taxes [Line Items]
Income Tax Examination, Year under Examination	2015
Minimum | California
Income Taxes [Line Items]
Income Tax Examination, Year under Examination	2014
Minimum | JAPAN
Income Taxes [Line Items]
Income Tax Examination, Year under Examination	2016
Maximum | US Federal
Income Taxes [Line Items]
Income Tax Examination, Year under Examination	2017
Maximum | California
Income Taxes [Line Items]
Income Tax Examination, Year under Examination	2017
Maximum | JAPAN
Income Taxes [Line Items]
Income Tax Examination, Year under Examination	2017

X

- Definition

Line items represent the income taxes.

+ References

No definition available.

+ Details

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X

- Definition

Tax year being audited in the income tax examination, in CCYY format.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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