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Pension and Other Postretirement Pension Plans (Summary of Changes in the Fair Value of the Plans' Level 3 Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 29, 2017 | Oct. 02, 2016 | Sep. 30, 2016
U.S. Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | $ 142,464 | $ 379,907 | $ 379,907
Transfers |  |  | (228,971)
Fair value of plan assets at the end of the year | 147,788 |  | 142,464
U.S. Pension Plans | Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 9,192 |  |
Fair value of plan assets at the end of the year | 6,176 |  | 9,192
U.S. Pension Plans | Real estate |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 3,477 |  |
Fair value of plan assets at the end of the year |  |  | 3,477
U.S. Pension Plans | Real estate | Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 3,477 | 9,914 | 9,914
Purchases, sales, and settlements | (3,477) |  | (6,530)
Realized and unrealized gains (losses) |  |  | 93
Fair value of plan assets at the end of the year |  |  | 3,477
Purchases | (3,477) |  | (6,530)
U.S. Pension Plans | Hedge funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 5,715 |  |
Fair value of plan assets at the end of the year | 6,176 |  | 5,715
U.S. Pension Plans | Hedge funds | Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 5,715 | 16,372 | 16,372
Purchases, sales, and settlements | (557) |  | (10,788)
Realized and unrealized gains (losses) | 1,018 |  | 131
Fair value of plan assets at the end of the year | 6,176 |  | 5,715
Purchases | (557) |  | (10,788)
Non-U.S. Pension Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 1,003,911 | 896,298 | 896,298
Effect of exchange rate changes | 75,409 | (126,646) |
Fair value of plan assets at the end of the year | 1,076,928 | 1,003,911 | 1,003,911
Non-U.S. Pension Plans | Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 367,655 |  |
Fair value of plan assets at the end of the year | 437,056 |  | 367,655
Non-U.S. Pension Plans | Real estate |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 55,665 |  |
Fair value of plan assets at the end of the year | 58,974 |  | 55,665
Non-U.S. Pension Plans | Real estate | Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 55,665 | 61,996 | 61,996
Purchases, sales, and settlements | (1,199) |  | (462)
Realized and unrealized gains (losses) | 2,642 |  | 2,572
Effect of exchange rate changes | 1,866 |  | (8,441)
Fair value of plan assets at the end of the year | 58,974 |  | 55,665
Purchases | (1,199) |  | (462)
Non-U.S. Pension Plans | Hedge funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 272,517 |  |
Fair value of plan assets at the end of the year |  |  | 272,517
Non-U.S. Pension Plans | Hedge funds | Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 272,517 | 260,720 | 260,720
Purchases, sales, and settlements | (9,022) |  | (1,205)
Realized and unrealized gains (losses) | 19,662 |  | 57,656
Transfers | 11,758 |  |
Effect of exchange rate changes | 8,814 |  | (44,654)
Fair value of plan assets at the end of the year | 303,729 |  | 272,517
Purchases | (9,022) |  | (1,205)
Non-U.S. Pension Plans | Insurance contracts |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 39,473 |  |
Fair value of plan assets at the end of the year | 74,353 |  | 39,473
Non-U.S. Pension Plans | Insurance contracts | Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets at the beginning of the year | 39,473 | $ 32,522 | 32,522
Purchases, sales, and settlements | 422 |  | (165)
Realized and unrealized gains (losses) | (7,572) |  | 6,451
Transfers | 40,031 |  |
Effect of exchange rate changes | 1,999 |  | 665
Fair value of plan assets at the end of the year | 74,353 |  | 39,473
Purchases | $ 422 |  | $ (165)

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- Definition Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets still held. + 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 (d)(5)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from assets transferred into (from) plan. + References No definition available. + Details
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- Definition Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees. + 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 (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of 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 (b)(2) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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