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Energy Services Accounts Receivable Securitization Facility (Details) - USD ($) | 6 Months Ended
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Oct. 31, 2016 | Apr. 30, 2016 | Mar. 31, 2016 | Mar. 31, 2015
Energy Services |  |  |  |
Accounts, Notes, Loans and Financing Receivable |  |  |  |
Sale of trade receivables |  |  | $ 468,000,000 | $ 692,000,000
Energy Services Funding Corporation |  |  |  |
Accounts, Notes, Loans and Financing Receivable |  |  |  |
Sale of undivided interests in its trade receivables to the commercial paper conduit |  |  | 167,500,000 | 216,500,000
Outstanding balance of trade receivables |  |  | 55,300,000 | 96,900,000
Outstanding balance of trade receivables sold |  |  | $ 4,000,000 | $ 0
Forecast | Maximum |  |  |  |
Accounts, Notes, Loans and Financing Receivable |  |  |  |
Receivables facility | $ 75,000,000 | $ 150,000,000 |  |

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- Definition Aggregate Trade Receivables Sold to Consolidated Special Purpose Subsidiary + References No definition available. + Details
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- Definition Outstanding balance of ESFC trade receivables. + References No definition available. + Details
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- Definition Receivable purchase facility size. + References No definition available. + Details
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- Definition Trade receivables sold to commercial paper conduit. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Proceeds from securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 + Details
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- Details
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