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Pension and Other Postretirement Benefit Plans - Schedule of Amount Recognized in Accompanying Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 27, 2019	Sep. 28, 2018
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Prepaid benefit cost included in noncurrent assets	$ 0	$ 0
Accrued benefit cost included in current liabilities	85	2,548
Accrued benefit cost included in noncurrent liabilities	58,245	55,025
Net amount recognized at the end of the year	58,330	57,573
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Prepaid benefit cost included in noncurrent assets	2,939	19,736
Accrued benefit cost included in current liabilities	4,177	3,671
Accrued benefit cost included in noncurrent liabilities	340,254	297,830
Net amount recognized at the end of the year	$ 341,492	$ 281,765

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Pension and other postretirement defined? benefit? plans? assets current.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

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