XML 66 R52.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Commitments and Contingencies Commitments and Contingencies (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract] |
Commitments and Contingencies | At September 30, 2015, the amounts of contractual cash commitments maturing in each of the next five years and beyond are shown below:
Commitments and Contingencies Payments due in the years ending September 30
|  | 2016 |  | 2017 |  | 2018 |  | 2019 |  | 2020 |  | Thereafter |  | Total
Membership interests of variable interest entity subject to mandatory redemption |  | 2 |  |  | 2 |  |  | 2 |  |  | 2 |  |  | 3 |  |  | 26 |  |  | 37 |
Lease obligations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital |  | 13 |  |  | 13 |  |  | 13 |  |  | 12 |  |  | 12 |  |  | 156 |  |  | 219 |
Non-cancelable operating |  | 44 |  |  | 42 |  |  | 32 |  |  | 25 |  |  | 25 |  |  | 38 |  |  | 206 |
Purchase obligations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Power |  | 217 |  |  | 226 |  |  | 229 |  |  | 235 |  |  | 241 |  |  | 3,124 |  |  | 4,272 |
Fuel |  | 1,282 |  |  | 711 |  |  | 635 |  |  | 508 |  |  | 335 |  |  | 1,448 |  |  | 4,919 |
Other |  | 262 |  |  | 198 |  |  | 193 |  |  | 189 |  |  | 173 |  |  | 1,830 |  |  | 2,845 |
Unfunded loan commitments |  | 5 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 5 |
Payments on other financings |  | 104 |  |  | 104 |  |  | 104 |  |  | 96 |  |  | 73 |  |  | 232 |  |  | 713 |
Total |  | $ | 1,929 |  |  | $ | 1,296 |  |  | $ | 1,208 |  |  | $ | 1,067 |  |  | $ | 862 |  |  | $ | 6,854 |  |  | $ | 13,216 |
Energy Prepayment Obligations |
Energy Prepayment Obligations Payments due in the years ending September 30
|  | 2016 |  | 2017 |  | 2018 |  | 2019 |  | 2020 |  | Thereafter |  | Total
Energy Prepayment Obligations |  | $ | 100 |  |  | $ | 100 |  |  | $ | 100 |  |  | $ | 10 |  |  | $ | — |  |  | $ | — |  |  | $ | 310 |

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the aggregate amount of payments due on known contractual obligations for the five years following the date of the latest balance sheet and the combined aggregate amount of maturities of known contractual obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 303 -Paragraph a -Subparagraph 5 + Details
Name: | us-gaap_ContractualObligationFiscalYearMaturityScheduleTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about obligations resulting from other commitments. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration