Pension and Other Postretirement Benefit Plans - Schedule of Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 28, 2018	Sep. 29, 2017	Sep. 30, 2016
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 8,269	$ 7,509	$ 14,378
Interest cost	49,324	31,205	38,892
Expected return on plan assets	(83,328)	(56,269)	(50,190)
Actuarial loss	6,655	10,616	9,092
Prior service cost	(257)	(329)	(260)
Net pension cost, before special items	(19,337)	(7,268)	11,912
Curtailment expense/Settlement loss	1,268	(298)	(7,512)
Total net periodic pension (income) cost recognized	(18,069)	(7,566)	4,400
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	4,765	1,000	9,875
Interest cost	13,778	5,757	16,746
Expected return on plan assets	(19,663)	(9,942)	(22,368)
Actuarial loss	3,845	3,985	7,512
Prior service cost	0	0	(176)
Net pension cost, before special items	2,725	800	11,589
Curtailment expense/Settlement loss	4,146	1,781	8,061
Total net periodic pension (income) cost recognized	$ 6,871	$ 2,581	$ 19,650

Defined benefit plan before curtailments or settlements charges.

No definition available.

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- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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- Definition

Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(2)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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- Definition

Amount of net periodic benefit cost (credit) for defined benefit plan.

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- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit from settlement and curtailment.

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- Definition

Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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