Retirement And Other Benefit Plans (Schedule Of Asset Allocation For Pension Plans Acceptable Range And Target Allocation By Asset Category) (Details)	12 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Acceptable Percentage of Plan Range Assets, Minimum	34.00%
Target Acceptable Percentage of Plan Range Assets, Maximum	42.00%
Asset Allocation	38.00%	34.00%	59.00%
Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Acceptable Percentage of Plan Range Assets, Minimum	58.00%
Target Acceptable Percentage of Plan Range Assets, Maximum	66.00%
Asset Allocation	62.00%	65.00%	39.00%
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Acceptable Percentage of Plan Range Assets, Minimum	0.00%
Target Acceptable Percentage of Plan Range Assets, Maximum	5.00%
Asset Allocation	0.00%	1.00%	2.00%

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ 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)(i)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanTargetPlanAssetAllocationsRangeMaximum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanTargetPlanAssetAllocationsRangeMinimum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration