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Notes Receivable (Tables) (EnerBank USA [Member]) | 3 Months Ended
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Mar. 31, 2012
EnerBank USA [Member] |
Schedule of Allowance for Loan Losses |
In Millions |
Three Months Ended March 31 |  |  |  | 2012 |  |  |  |  | 2011 |
Balance at beginning of period |  |  |  |  | $ 5 |  |  |  |  |  | $ 5 |
Charge-offs |  |  |  |  | (1) |  |  |  |  |  | (1) |
Recoveries |  |  |  |  | - |  |  |  |  |  | - |
Provision for loan losses |  |  |  |  | 1 |  |  |  |  |  | 1 |
Balance at end of period |  |  |  |  | $ 5 |  |  |  |  |  | $ 5 |
Schedule of Delinquency Status of EnerBank's Consumer Loans |
In Millions |
|  | Past Due 30-59 Days |  |  | Past Due 60-89 Days |  |  | Past Due Over 90 Days |  |  | Total Delinquent |  |  | Current |  |  | Total Outstanding |
March 31, 2012 |  |  | $ 1 |  |  |  | $ - |  |  |  | $ 1 |  |  |  | $ 2 |  |  |  | $ 475 |  |  |  | $ 477 |
December 31, 2011 |  |  | 1 |  |  |  | - |  |  |  | 1 |  |  |  | 2 |  |  |  | 478 |  |  |  | 480 |

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- Definition Tabular disclosure of financing receivables that are past due but not impaired, financing receivables that are 90 days past due and still accruing, and financing receivables on nonaccrual status. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953401-111524 + Details
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- Definition Tabular disclosure of the activity in the total allowance for credit losses related to financing receivables (such as loans or lease receivables) for entities that have an unclassified balance sheet, including the balance in the allowance at the beginning and end of each period, additions charged to operations, direct write-downs charged against the allowance, and recoveries of amounts previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 310 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c) -Name Accounting Standards Codification -Paragraph 11B -Section 50 -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 + Details
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