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Pensions And Other Postretirement Benefits (Actual And Target Asset Allocation For Pension Plan Assets) (Details) - Pension Plan [Member]	Sep. 29, 2018	Sep. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	100.00%	100.00%
Target Plan Asset Allocations	100.00%
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	0.90%	1.10%
Target Plan Asset Allocations	0.00%
Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	99.10%	87.40%
Target Plan Asset Allocations	100.00%
Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	0.00%	2.40%
Target Plan Asset Allocations	0.00%
U.S. Stock Funds [Member] | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	0.00%	3.50%
Target Plan Asset Allocations	0.00%
Non-US [Member] | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual Plan Asset Allocations	0.00%	5.60%
Target Plan Asset Allocations	0.00%

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=112275985&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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