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Commitments, Guarantees and Contingencies (Details) $ in Millions | Sep. 30, 2016 USD ($)
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Guarantor Obligations [Line Items] |
Guarantor obligations | $ 499
At Current Credit Rating |
Guarantor Obligations [Line Items] |
Guarantor obligations | 81
Upon Further Downgrade |
Guarantor Obligations [Line Items] |
Guarantor obligations | 48
Upon Material Adverse Event |
Guarantor Obligations [Line Items] |
Guarantor obligations | 10
Surety Bond (Collateralized Amount) |
Guarantor Obligations [Line Items] |
Guarantor obligations | 360
CES |
Guarantor Obligations [Line Items] |
Guarantor obligations | 355
CES | At Current Credit Rating |
Guarantor Obligations [Line Items] |
Guarantor obligations | 81
CES | Upon Further Downgrade |
Guarantor Obligations [Line Items] |
Guarantor obligations | 0
CES | Upon Material Adverse Event |
Guarantor Obligations [Line Items] |
Guarantor obligations | 10
CES | Surety Bond (Collateralized Amount) |
Guarantor Obligations [Line Items] |
Guarantor obligations | 264
Regulated |
Guarantor Obligations [Line Items] |
Guarantor obligations | 144
Regulated | At Current Credit Rating |
Guarantor Obligations [Line Items] |
Guarantor obligations | 0
Regulated | Upon Further Downgrade |
Guarantor Obligations [Line Items] |
Guarantor obligations | 48
Regulated | Upon Material Adverse Event |
Guarantor Obligations [Line Items] |
Guarantor obligations | 0
Regulated | Surety Bond (Collateralized Amount) |
Guarantor Obligations [Line Items] |
Guarantor obligations | $ 96

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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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