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Employee Benefit Plans (Schedule Of Fair Value, Investments, Entities that Calculate Net Asset Value (Details) - Pension Plan - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
Defined Benefit Plan Disclosure
Fair Value	$ 38,272	$ 302,713
Unfunded Commitments	5,738
Limited Partnerships
Defined Benefit Plan Disclosure
Fair Value	35,821	44,003
Unfunded Commitments	$ 5,738
Limited Partnerships | Minimum
Defined Benefit Plan Disclosure
Redemption Notice Period	10 days
Limited Partnerships | Maximum
Defined Benefit Plan Disclosure
Redemption Notice Period	45 days
Hedge Funds
Defined Benefit Plan Disclosure
Fair Value	$ 2,451	21,678
Unfunded Commitments	$ 0
Hedge Funds | Maximum
Defined Benefit Plan Disclosure
Redemption Notice Period	60 days
Interest In Common Collective Trusts
Defined Benefit Plan Disclosure
Fair Value	$ 0	$ 237,032
Unfunded Commitments	$ 0
Interest In Common Collective Trusts | Minimum
Defined Benefit Plan Disclosure
Redemption Notice Period	0 days
Interest In Common Collective Trusts | Maximum
Defined Benefit Plan Disclosure
Redemption Notice Period	5 days

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+ References

No definition available.

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Notice period the entity is required to deliver before it can redeem an investment calculated using net asset value per share, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, investments calculated by per unit, per membership interest, other equity or ownership interest and alternative investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258

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The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258

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Net asset value of investment in certain entities that calculate net asset value per share. Includes, but is not limited to, by unit, membership interest, or other ownership interest. Investment includes, but is not limited to, investment in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. Excludes fair value disclosure.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 35
-Paragraph 59
-URI http://asc.fasb.org/extlink&oid=65894324&loc=SL6740821-110257

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 35
-Paragraph 54B
-URI http://asc.fasb.org/extlink&oid=65894324&loc=SL7495116-110257

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