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Regulatory Matters (Duke Energy Ohio - Exit Obligation Rollforward) (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($)
Public Utilities, General Disclosures [Line Items] |
Balance, beginning of period | $ 205
Cash reductions | (188)
Balance, end of period | 41
Duke Energy Ohio |
Public Utilities, General Disclosures [Line Items] |
Balance, beginning of period | 2
Cash reductions | (2)
Balance, end of period | 1
RTO Realignment | Duke Energy Ohio |
Public Utilities, General Disclosures [Line Items] |
Balance, beginning of period | 58
Provisions/Adjustments | 0
Cash reductions | (4)
Balance, end of period | $ 54

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585 + Details
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