v2.4.0.6

Condensed Consolidated Statements Of Comprehensive Income (Parenthethical) (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Pension and OPEB related adjustments to AOCI, tax | $ 1 | $ 2
Net unrealized gains (losses) on cash flow hedges, tax | 4 | 5
Reclassification into earnings from cash flow hedges, tax | 1 |
Progress Energy [Member] |  |
Net unrealized gains (losses) on cash flow hedges, tax | 0 | 2
Reclassification into earnings from pension and OPEB adjustments, tax | 0 | 0
Reclassification into earnings from cash flow hedges, tax | 0 | 2
Duke Energy Progress [Member] |  |
Net unrealized gains (losses) on cash flow hedges, tax | 0 | 2
Reclassification into earnings from cash flow hedges, tax | 0 | 1
Duke Energy Indiana [Member] |  |
Reclassification into earnings from cash flow hedges, tax | $ (1) | $ 0

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- Definition Tax effect of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 25 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e689-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e640-108580 + Details
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