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Pension and Other Postretirement Benefit Plans - Schedule of Weighted Average Measurement of Assets and Liabilities (Details) | Sep. 28, 2018 | Sep. 29, 2017
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Equity securities | U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 27.00% | 70.00%
Equity securities | Non-U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 24.00% | 24.00%
Debt securities | U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 39.00% | 23.00%
Debt securities | Non-U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 49.00% | 32.00%
Real estate investments | U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 0.00% | 0.00%
Real estate investments | Non-U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 8.00% | 5.00%
Other | U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 34.00% | 7.00%
Other | Non-U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Actual Plan Asset Allocations | 19.00% | 39.00%

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- Definition Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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