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Note 5,Debt and Financing Arrangements (Details) $ in Billions | 9 Months Ended
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Jun. 30, 2017 USD ($) Rate
Line of Credit Facility [Line Items] |
Line of Credit Facility, Description | 3.5x adjusted EBITDA
Line of Credit [Member] |
Line of Credit Facility [Line Items] |
Long-term Debt | $ | $ 1.5
Revolving Credit Facility [Member] |
Line of Credit Facility [Line Items] |
Long-term Debt | $ | $ 1.5
Line Of Credit Commitment Fee Year 1 [Member] |
Line of Credit Facility [Line Items] |
Line of Credit Facility, Commitment Fee Percentage | 0.625%
Line Of Credit Commitment Fee Year 2 and 3 [Member] |
Line of Credit Facility [Line Items] |
Line of Credit Facility, Commitment Fee Percentage | 1.25%
Line Of Credit Commitment Fee Year 4 and After [Member] |
Line of Credit Facility [Line Items] |
Line of Credit Facility, Commitment Fee Percentage | 2.50%

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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: 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(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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