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Common and Preferred Stock (Details)	12 Months Ended
	Sep. 29, 2017 class $ / shares	Sep. 30, 2016 $ / shares
Class Of Stock Disclosures [Abstract]
Number of capital stock classes | class	2
Common stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, par value (in dollars per share)	$ 1	$ 1

X

- Definition

Number of capital stock classes.

+ References

No definition available.

+ Details

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X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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X

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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