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Pension and Other Postretirement Pension Plans (Schedule of Contribution to Multiemployer Pension Plans) (Details) - Multiemployer Plans, Pension - Multiemployer Plan, Individually Insignificant Multiemployer Plans - USD ($) $ in Thousands | 12 Months Ended
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Sep. 29, 2017 | Sep. 30, 2016 | Oct. 02, 2015
Multiemployer Plans [Line Items] |  |  |
Contributions to multiemployer pension plans | $ 45,942 | $ 58,741 | $ 59,445
Canada |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions to multiemployer pension plans | 35,182 | 44,912 | 42,575
Europe and Australia |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions to multiemployer pension plans | 6,212 | 8,771 | 10,902
United States |  |  |
Multiemployer Plans [Line Items] |  |  |
Contributions to multiemployer pension plans | $ 4,548 | $ 5,058 | $ 5,968

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- Definition Amount of contributions made to multiemployer plan by employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947 + Details
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