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Retirement And Other Benefit Plans (Schedule Of Asset Allocation For Pension Plans Acceptable Range And Target Allocation By Asset Category) (Details) | 12 Months Ended
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Sep. 30, 2014 Equity Securities [Member] | Sep. 30, 2013 Equity Securities [Member] | Sep. 30, 2015 Equity Securities [Member] Subsequent Event [Member] | Sep. 30, 2014 Fixed Income Funds [Member] | Sep. 30, 2013 Fixed Income Funds [Member] | Sep. 30, 2015 Fixed Income Funds [Member] Subsequent Event [Member] | Sep. 30, 2014 Cash and Cash Equivalents [Member] | Sep. 30, 2013 Cash and Cash Equivalents [Member] | Sep. 30, 2015 Cash and Cash Equivalents [Member] Subsequent Event [Member]
Target Acceptable Percentage of Plan Range Assets, Minimum |  |  | 34.00% |  |  | 58.00% |  |  | 0.00%
Target Acceptable Percentage of Plan Range Assets, Maximum |  |  | 42.00% |  |  | 66.00% |  |  | 5.00%
Asset Allocation | 35.00% | 34.00% | 38.00% | 64.00% | 65.00% | 62.00% | 1.00% | 1.00% | 0.00%

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- Definition 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=35743120&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=35743120&loc=d3e2446-114920 + Details
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- Definition Target allocation maximum percentage 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=35743120&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=35743120&loc=d3e2446-114920 + Details
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- Definition Target allocation minimum percentage 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=35743120&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=35743120&loc=d3e2446-114920 + Details
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