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Commitments, Guarantees and Contingencies (Details) $ in Millions | Jun. 30, 2016 USD ($)
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Guarantor Obligations [Line Items] |
Guarantor obligations | $ 379
FES and AE Supply [Member] |
Guarantor Obligations [Line Items] |
Guarantor obligations | 25
FES & AE Supply tied to FES rating [Member] |
Guarantor Obligations [Line Items] |
Guarantor obligations | 310
Utilities |
Guarantor Obligations [Line Items] |
Guarantor obligations | 44
Split Rating |
Guarantor Obligations [Line Items] |
Guarantor obligations | 243
Split Rating | FES and AE Supply [Member] |
Guarantor Obligations [Line Items] |
Guarantor obligations | 25
Split Rating | FES & AE Supply tied to FES rating [Member] |
Guarantor Obligations [Line Items] |
Guarantor obligations | 174
Split Rating | Utilities |
Guarantor Obligations [Line Items] |
Guarantor obligations | 44
Non-Investment Grade Rating |
Guarantor Obligations [Line Items] |
Guarantor obligations | 256
Non-Investment Grade Rating | FES and AE Supply [Member] |
Guarantor Obligations [Line Items] |
Guarantor obligations | 25
Non-Investment Grade Rating | FES & AE Supply tied to FES rating [Member] |
Guarantor Obligations [Line Items] |
Guarantor obligations | 187
Non-Investment Grade Rating | Utilities |
Guarantor Obligations [Line Items] |
Guarantor obligations | $ 44

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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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