v2.4.0.6

Risk Management, Derivative Instruments And Hedging Activities (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2013

Dec. 31, 2012

Derivative [Line Items]

Notional Amounts Of Derivative Instruments Related To Interest Rate Risk

			March 31, 2013
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Ohio			Duke Energy Indiana
Cash flow hedges(a)			$	1,047		$	―		$	―		$	―		$	―
Undesignated contracts				238			―			―			27			200
Fair value hedges				250			―			―			250			―
	Total notional amount		$	1,535		$	―		$	―		$	277		$	200

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Ohio			Duke Energy Indiana
Cash flow hedges(a)			$	1,047		$	―		$	―		$	―		$	―
Undesignated contracts				290			50			50			27			200
Fair value hedges				250			―			―			250			―
	Total notional amount		$	1,587		$	50		$	50		$	277		$	200

Underlying Notional Amounts for Commodity Derivative Instruments Accounted for at Fair Value

		March 31, 2013
		Duke Energy		Duke Energy Carolinas		Progress Energy		Duke Energy Progress		Duke Energy Florida		Duke Energy Ohio		Duke Energy Indiana
Commodity contracts
Electricity-energy (Gigawatt-hours)(a)		56,890		1,802		1,850		1,850		―		53,173		406
Natural gas (millions of decatherms)		516		―		335		110		225		181		―

		December, 31, 2012
		Duke Energy		Duke Energy Carolinas		Progress Energy		Duke Energy Progress		Duke Energy Florida		Duke Energy Ohio		Duke Energy Indiana
Commodity contracts
Electricity-energy (Gigawatt-hours)(a)		52,104		2,028		1,850		1,850		―		51,215		97
Natural gas (millions of decatherms)		528		―		348		118		230		180		―

Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets

		March 31, 2013							December 31, 2012
(in millions)		Asset			Liability				Asset			Liability
Derivatives Designated as Hedging Instruments
Commodity contracts
Current liabilities: other		$	―		$	1			$	―		$	2
Deferred credits and other liabilities: other			―			1				―			1
Interest rate contracts
Current assets: other			2			―				2			―
Investments and other assets: other			3			―				7			―
Current Liabilities: Other			(2)			70				―			81
Deferred credits and other liabilities: other			―			30				―			35
Total Derivatives Designated as Hedging Instruments		$	3		$	102			$	9		$	119
Derivatives Not Designated as Hedging Instruments
Commodity contracts
Current assets: other		$	52		$	9			$	41		$	2
Investments and other assets: other			32			6				106			50
Current liabilities: other			151			372				106			407
Deferred credits and other liabilities: other			71			293				2			255
Interest rate contracts
Current liabilities: other			―			57				―			76
Deferred credits and other liabilities: other			―			6				―			8
Total Derivatives Not Designated as Hedging Instruments		$	306		$	743			$	255		$	798
Total Derivatives		$	309		$	845			$	264		$	917

Offsetting Assets and Liabilities

			March 31, 2013
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	182		$	157		$	25
Not Subject to Master Netting				21			―			21
Total Derivative Assets: Current				203			157			46	(a)
Derivative Assets: Non-current
Subject to Master Netting				91			75			16
Not Subject to Master Netting				15			―			15
Total Derivative Assets: Non-current				106			75			31	(b)
Derivative Liabilities: Current
Subject to Master Netting				350			222			128
Not Subject to Master Netting				159			―			159
Total Derivative Liabilities: Current				509			222			287	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				295			118			177
Not Subject to Master Netting				41			―			41
Total Derivative Liabilities: Non-current				336			118			218	(d)

			December 31, 2012
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	127		$	114		$	13
Not Subject to Master Netting				22			―			22
Total Derivative Assets: Current				149			114			35	(a)
Derivative Assets: Non-current
Subject to Master Netting				96			54			42
Not Subject to Master Netting				19			―			19
Total Derivative Assets: Non-current				115			54			61	(b)
Derivative Liabilities: Current
Subject to Master Netting				402			151			251
Not Subject to Master Netting				166			―			166
Total Derivative Liabilities: Current				568			151			417	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				295			90			205
Not Subject to Master Netting				54			―			54
Total Derivative Liabilities: Non-current				349			90			259	(d)

Cash Flow Hedges-Location And Amount Of Pre-Tax (Losses) Recognized In Comprehensive Income

		Three Months Ended March 31,
(in millions)		2013			2012
Pre-tax Gains (Losses) Recorded in AOCI
Interest rate contracts		$	13		$	18
Commodity contracts			1			―
Total Pre-tax Gains (Losses) Recorded in AOCI		$	14		$	18
Location of Pre-tax Gains and (Losses) Reclassified from AOCI into Earnings(a)
Interest rate contracts(b)
Interest expense		$	(1)		$	(1)
Total Pre-tax Gains (Losses) Reclassified from AOCI into Earnings		$	(1)		$	(1)
(a)	Represents the gains and losses on cash flow hedges previously recorded in AOCI during the term of the hedging relationship and reclassified into earnings during the current period.
(b)	Amounts in AOCI related to terminated hedges are reclassified to earnings as the interest expense is recorded. The effective portion of the hedges will be amortized to interest expense over the term of the related debt.

Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities

		Three Months Ended March 31,
(in millions)		2013			2012
Location of Pre-tax Gains and (Losses) Recognized in Earnings
Commodity contracts
Revenue, regulated electric		$	6		$	―
Revenue, nonregulated electric, natural gas and other			(82)			36
Fuel used in electric generation and purchased power regulated			(52)			―
Fuel used in electric generation and purchased power - nonregulated			(7)			―
Interest rate contracts
Interest expense			(4)			―
Total Pre-tax (Losses) Gains Recognized in Earnings		$	(139)		$	36
Location of Pre-tax Gains and (Losses) Recognized as Regulatory Assets or Liabilities
Commodity contracts
Regulatory asset		$	105		$	(1)
Regulatory liability			(5)			5
Interest rate contracts
Regulatory asset			13			22
Total Pre-tax Gains (Losses) Recognized as Regulatory Assets of Liabilities		$	113		$	26

Schedule Of Information Regarding Derivative Instruments That Contain Credit-Risk Related Contingent Features

			March 31, 2013
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	512		$	230		$	79		$	151		$	279
Collateral already posted				215			35			3			32			180
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				202			195			76			119			7

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	466		$	286		$	108		$	178		$	176
Collateral already posted				163			59			9			50			104
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				230			227			99			128			2

Schedule Of Cash Collateral Under Master Netting Arrangements

March 31, 2013

December 31, 2012

(in millions)

Receivables

Payables

Receivables

Payables

Duke Energy

Amounts offset against net derivative positions

$

107

$

―

$

73

$

―

Amounts not offset against net derivative positions

108

―

93

―

Progress Energy

Amounts offset against net derivative positions

35

―

58

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Progress

Amounts offset against net derivative positions

3

―

9

―

Amounts not offset against net derivative positions

―

―

―

―

Duke Energy Florida

Amounts offset against net derivative positions

32

―

49

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Ohio

Amounts offset against net derivative positions

72

―

15

―

Amounts not offset against net derivative positions

$

108

$

―

$

92

$

―

Duke Energy Carolinas [Member]

Derivative [Line Items]

Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets

		March 31, 2013						December 31, 2012
(in millions)		Asset			Liability			Asset			Liability
Derivatives Not Designated as Hedging Instruments
Commodity contracts
Current liabilities: other		$	―		$	2		$	―		$	6
Deferred credits and other liabilities: other			―			3			―			6
Total Derivatives Not Designated as Hedging Instruments		$	―		$	5		$	―		$	12
Total Derivatives		$	―		$	5		$	―		$	12

Offsetting Assets and Liabilities

			March 31, 2013
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Liabilities: Current
Not Subject to Master Netting			$	2		$	―		$	2	(a)
Derivative Liabilities: Non-current
Not Subject to Master Netting				3			―			3	(b)

			December 31, 2012
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Liabilities: Current
Not Subject to Master Netting			$	6		$	―		$	6	(a)
Derivative Liabilities: Non-current
Not Subject to Master Netting				6			―			6	(b)

Progress Energy [Member]

Derivative [Line Items]

Notional Amounts Of Derivative Instruments Related To Interest Rate Risk

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Ohio			Duke Energy Indiana
Cash flow hedges(a)			$	1,047		$	―		$	―		$	―		$	―
Undesignated contracts				290			50			50			27			200
Fair value hedges				250			―			―			250			―
	Total notional amount		$	1,587		$	50		$	50		$	277		$	200

Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets

		March 31, 2013						December 31, 2012
(in millions)		Asset			Liability			Asset			Liability
Derivatives Designated as Hedging Instruments
Commodity contracts
Current liabilities: other		$	―		$	1		$	―		$	2
Deferred credits and other liabilities: other			―			1			―			1
Total Derivatives Designated as Hedging Instruments		$	―		$	2		$	―		$	3
Derivatives Not Designated as Hedging Instruments
Commodity contracts
Current assets: other		$	13		$	―		$	3		$	―
Investments and other assets: other			2			―			8			―
Current liabilities: other			20			140			―			231
Deferred credits and other liabilities: other			12			159			―			195
Interest rate contracts
Current liabilities: other			―			―			―			11
Total Derivatives Not Designated as Hedging Instruments		$	47		$	299		$	11		$	437
Total Derivatives		$	47		$	301		$	11		$	440

Offsetting Assets and Liabilities

			March 31, 2013
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	33		$	21		$	12	(a)
Derivative Assets: Non-current
Subject to Master Netting				14			12			2	(b)
Derivative Liabilities: Current
Subject to Master Netting				141			34			107	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				156			34			122
Not Subject to Master Netting				4			―			4
Total Derivative Liabilities: Non-current				160			34			126	(d)

			December 31, 2012
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	3		$	―		$	3	(a)
Derivative Assets: Non-current
Subject to Master Netting				8			―			8	(b)
Derivative Liabilities: Current
Subject to Master Netting				244			22			222	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				192			36			156
Not Subject to Master Netting				4			―			4
Total Derivative Liabilities: Non-current				196			36			160	(d)

Cash Flow Hedges-Location And Amount Of Pre-Tax (Losses) Recognized In Comprehensive Income

		Three Months Ended March 31,
(in millions)		2013			2012
Pre-tax Gains (Losses) Recorded in AOCI
Commodity contracts		$	1		$	―
Interest rate contracts			―			4
Total Pre-tax Gains (Losses) Recorded in AOCI		$	1		$	4
Location of Pre-tax Gains and (Losses) Reclassified from AOCI into Earnings(a)
Interest rate contracts(b)
Interest expense		$	―		$	(4)
Total Pre-tax Gains (Losses) Reclassified from AOCI into Earnings		$	―		$	(4)
(a)	Represents the gains and losses on cash flow hedges previously recorded in AOCI during the term of the hedging relationships and reclassified into earnings during the current period.
(b)	Amounts in AOCI related to terminated hedges are reclassified to earnings as the interest expense is recorded. The effective portion of the hedges will be amortized to interest expense over the term of the related debt.

Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities

		Three Months Ended March 31,
(in millions)		2013			2012
Location of Pre-tax Gains and (Losses) Recognized in Earnings
Commodity contracts
Revenue, regulated electric		$	6		$	―
Fuel used in electric generation and purchased power - regulated(a)			(52)			(105)
Other income and expenses, net			―			8
Interest rate contracts
Interest expense			(4)			―
Total Pre-tax (Losses) Gains Recognized in Earnings		$	(50)		$	(97)
Location of Pre-tax Gains and (Losses) Recognized as Regulatory Assets or Liabilities
Commodity contracts(c)
Regulatory asset		$	105		$	(206)
Interest rate contracts(b)
Regulatory asset			5			―
Total Pre-tax Gains (Losses) Recognized as Regulatory Assets of Liabilities		$	110		$	(206)
(a)	After the settlement of the derivatives and the consumption of the fuel, gains or losses are passed through the fuel cost-recovery clause.
(b)	Amounts in regulatory assets and liabilities related to terminated hedges are reclassified to earnings as the interest expense is recorded. The hedges will be amortized to interest expense over the term of the related debt.
(c)	Amounts are recorded as regulatory assets and liabilities in the Condensed Consolidated Balance Sheets until gains or losses are passed through the fuel cost-recovery clause.

Schedule Of Information Regarding Derivative Instruments That Contain Credit-Risk Related Contingent Features

			March 31, 2013
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	512		$	230		$	79		$	151		$	279
Collateral already posted				215			35			3			32			180
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				202			195			76			119			7

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	466		$	286		$	108		$	178		$	176
Collateral already posted				163			59			9			50			104
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				230			227			99			128			2

Schedule Of Cash Collateral Under Master Netting Arrangements

March 31, 2013

December 31, 2012

(in millions)

Receivables

Payables

Receivables

Payables

Duke Energy

Amounts offset against net derivative positions

$

107

$

―

$

73

$

―

Amounts not offset against net derivative positions

108

―

93

―

Progress Energy

Amounts offset against net derivative positions

35

―

58

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Progress

Amounts offset against net derivative positions

3

―

9

―

Amounts not offset against net derivative positions

―

―

―

―

Duke Energy Florida

Amounts offset against net derivative positions

32

―

49

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Ohio

Amounts offset against net derivative positions

72

―

15

―

Amounts not offset against net derivative positions

$

108

$

―

$

92

$

―

Duke Energy Progress [Member]

Derivative [Line Items]

Notional Amounts Of Derivative Instruments Related To Interest Rate Risk

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Ohio			Duke Energy Indiana
Cash flow hedges(a)			$	1,047		$	―		$	―		$	―		$	―
Undesignated contracts				290			50			50			27			200
Fair value hedges				250			―			―			250			―
	Total notional amount		$	1,587		$	50		$	50		$	277		$	200

Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets

		March 31, 2013						December 31, 2012
(in millions)		Asset			Liability			Asset			Liability
Derivatives Designated as Hedging Instruments
Commodity contracts
Current liabilities: other		$	―		$	1		$	―			1
Deferred credits and other liabilities: other			―			1			―			1
Total Derivatives Designated as Hedging Instruments		$	―		$	2		$	―		$	2
Derivatives Not Designated as Hedging Instruments
Commodity contracts(a)
Current assets: other		$	4		$	―		$	1		$	―
Investments and other assets: other			―			―			1			―
Current liabilities: other			8			52			―			85
Deferred credits and other liabilities: other			2			54			―			68
Interest rate contracts
Current liabilities: other			―			―			―			11
Total Derivatives Not Designated as Hedging Instruments		$	14		$	106		$	2		$	164
Total Derivatives		$	14		$	108		$	2		$	166
(a)	Substantially all of these contracts receive regulatory treatment.

Offsetting Assets and Liabilities

			March 31, 2013
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	12		$	8		$	4	(a)
Derivative Assets: Non-current
Subject to Master Netting				2			2			―	(b)
Derivative Liabilities: Current
Subject to Master Netting				53			8			45	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				55			5			50	(d)

			December 31, 2012
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	1		$	―		$	1	(a)
Derivative Assets: Non-current
Subject to Master Netting				1			―			1	(b)
Derivative Liabilities: Current
Subject to Master Netting				97			2			95	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				69			7			62	(d)

Cash Flow Hedges-Location And Amount Of Pre-Tax (Losses) Recognized In Comprehensive Income

		Three Months Ended March 31,
(in millions)		2013			2012
Pre-tax Gains (Losses) Recorded in AOCI
Interest rate contracts(b)		$	―		$	5
Total Pre-tax Gains (Losses) Recorded in AOCI		$	―		$	5
Location of Pre-tax Gains and (Losses) Reclassified from AOCI into Earnings(a)
Interest rate contracts(b)
Interest expense		$	―		$	(3)
Total Pre-tax Gains (Losses) Reclassified from AOCI into Earnings		$	―		$	(3)
(a)	Represents the gains and losses on cash flow hedges previously recorded in AOCI during the term of the hedging relationships and reclassified into earnings during the current period
(b)	Amounts in AOCI related to terminated hedges are reclassified to earnings as the interest expense is recorded. The effective portion of the hedges will be amortized to interest expense over the term of the related debt.

Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities

		Three Months Ended March 31,
(in millions)		2013			2012
Location of Pre-tax Gains and (Losses) Recognized in Earnings
Commodity contracts
Revenue, regulated electric		$	6		$	―
Fuel used in electric generation and purchased power -regulated(a)			(17)			(26)
Interest rate contracts
Interest expense			(3)			―
Total Pre-tax (Losses) Gains Recognized in Earnings		$	(14)		$	(26)
Location of Pre-tax Gains and (Losses) Recognized as Regulatory Assets or Liabilities
Commodity contracts(c)
Regulatory asset		$	36		$	(59)
Interest rate contracts(b)
Regulatory asset			3			―
Total Pre-tax Gains (Losses) Recognized as Regulatory Assets of Liabilities		$	39		$	(59)
(a)	After the settlement of the derivatives and the consumption of fuel, gains or losses are passed through the fuel cost-recovery clause.
(b)	Amounts in regulatory assets and liabilities related to terminated hedges are reclassified to earnings as the interest expense is recorded. The hedges will be amortized to interest expense over the term of the related debt.
(c)	Amounts are recorded in regulatory assets and liabilities in the Condensed Consolidated Balance Sheets until gains or losses are passed through the fuel cost-recovery clause.

Schedule Of Information Regarding Derivative Instruments That Contain Credit-Risk Related Contingent Features

			March 31, 2013
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	512		$	230		$	79		$	151		$	279
Collateral already posted				215			35			3			32			180
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				202			195			76			119			7

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	466		$	286		$	108		$	178		$	176
Collateral already posted				163			59			9			50			104
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				230			227			99			128			2

Schedule Of Cash Collateral Under Master Netting Arrangements

March 31, 2013

December 31, 2012

(in millions)

Receivables

Payables

Receivables

Payables

Duke Energy

Amounts offset against net derivative positions

$

107

$

―

$

73

$

―

Amounts not offset against net derivative positions

108

―

93

―

Progress Energy

Amounts offset against net derivative positions

35

―

58

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Progress

Amounts offset against net derivative positions

3

―

9

―

Amounts not offset against net derivative positions

―

―

―

―

Duke Energy Florida

Amounts offset against net derivative positions

32

―

49

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Ohio

Amounts offset against net derivative positions

72

―

15

―

Amounts not offset against net derivative positions

$

108

$

―

$

92

$

―

Duke Energy Florida [Member]

Derivative [Line Items]

Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets

		March 31, 2013						December 31, 2012
(in millions)		Asset			Liability			Asset			Liability
Derivatives Designated as Hedging Instruments
Commodity contracts
Current liabilities: other		$	―		$	―		$	―		$	1
Total Derivatives Designated as Hedging Instruments		$	―		$	―		$	―		$	1
Derivatives Not Designated as Hedging Instruments
Commodity contracts(a)
Current Assets: Other		$	8		$	―		$	2		$	―
Investments and Other Assets: Other			2			―			7			―
Current liabilities: other			13			89			―			146
Deferred credits and other liabilities: other			10			101			―			123
Total Derivatives Not Designated as Hedging Instruments		$	33		$	190		$	9		$	269
Total Derivatives		$	33		$	190		$	9		$	270
(a)	Substantially all of these contracts receive regulatory treatment.

Offsetting Assets and Liabilities

			March 31, 2013
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on Condensed Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	21		$	13		$	8	(a)
Derivative Assets: Non-current
Subject to Master Netting				12			10			2	(b)
Derivative Liabilities: Current
Subject to Master Netting				89			26			63	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				101			29			72	(d)

			December 31, 2012
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on Condensed Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	2		$	―		$	2	(a)
Derivative Assets: Non-current
Subject to Master Netting				7			―			7	(b)
Derivative Liabilities: Current
Subject to Master Netting				147			20			127	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				123			29			94	(d)

Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities

		Three Months Ended March 31,
(in millions)		2013			2012
Location of Pre-tax Gains and (Losses) Recognized in Earnings
Commodity contracts
Fuel used in electric generation and purchased power - regulated(a)		$	(35)		$	(79)
Interest rate contracts
Interest expense			(1)			―
Total Pre-tax (Losses) Gains Recognized in Earnings		$	(36)		$	(79)
Location of Pre-tax Gains and (Losses) Recognized as Regulatory Assets or Liabilities
Commodity contracts(b)
Regulatory asset		$	69		$	(147)
Interest rate contracts
Regulatory asset			1			―
Total Pre-tax Gains (Losses) Recognized as Regulatory Assets of Liabilities		$	70		$	(147)
(a)	After the settlement of the derivatives and the consumption of fuel, gains or losses are passed through the fuel cost-recovery clause.
(b)	Amounts are recorded in regulatory assets and liabilities in the Condensed Balance Sheets until gains or losses are passed through the fuel cost-recovery clause.

Schedule Of Information Regarding Derivative Instruments That Contain Credit-Risk Related Contingent Features

			March 31, 2013
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	512		$	230		$	79		$	151		$	279
Collateral already posted				215			35			3			32			180
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				202			195			76			119			7

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	466		$	286		$	108		$	178		$	176
Collateral already posted				163			59			9			50			104
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				230			227			99			128			2

Schedule Of Cash Collateral Under Master Netting Arrangements

March 31, 2013

December 31, 2012

(in millions)

Receivables

Payables

Receivables

Payables

Duke Energy

Amounts offset against net derivative positions

$

107

$

―

$

73

$

―

Amounts not offset against net derivative positions

108

―

93

―

Progress Energy

Amounts offset against net derivative positions

35

―

58

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Progress

Amounts offset against net derivative positions

3

―

9

―

Amounts not offset against net derivative positions

―

―

―

―

Duke Energy Florida

Amounts offset against net derivative positions

32

―

49

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Ohio

Amounts offset against net derivative positions

72

―

15

―

Amounts not offset against net derivative positions

$

108

$

―

$

92

$

―

Duke Energy Ohio [Member]

Derivative [Line Items]

Notional Amounts Of Derivative Instruments Related To Interest Rate Risk

			March 31, 2013
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Ohio			Duke Energy Indiana
Cash flow hedges(a)			$	1,047		$	―		$	―		$	―		$	―
Undesignated contracts				238			―			―			27			200
Fair value hedges				250			―			―			250			―
	Total notional amount		$	1,535		$	―		$	―		$	277		$	200

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Ohio			Duke Energy Indiana
Cash flow hedges(a)			$	1,047		$	―		$	―		$	―		$	―
Undesignated contracts				290			50			50			27			200
Fair value hedges				250			―			―			250			―
	Total notional amount		$	1,587		$	50		$	50		$	277		$	200

Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets

		March 31, 2013						December 31, 2012
(in millions)		Asset			Liability			Asset			Liability
Derivatives Designated as Hedging Instruments
Interest rate contracts
Current assets: other		$	2		$	―		$	2		$	―
Total Derivatives Designated as Hedging Instruments		$	2		$	―		$	2		$	―
Derivatives Not Designated as Hedging Instruments
Commodity contracts
Current assets: other		$	42		$	32		$	31		$	4
Investments and other assets: other			13			7			81			51
Current liabilities: other			130			182			106			132
Deferred credits and other liabilities: other			57			91			―			4
Interest rate contracts
Current liabilities: other			―			1			―			1
Deferred credits and other liabilities: other			―			6			―			7
Total Derivatives Not Designated as Hedging Instruments		$	242		$	319		$	218		$	199
Total Derivatives		$	244		$	319		$	220		$	199

Offsetting Assets and Liabilities

			March 31, 2013
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	172		$	163		$	9
Not Subject to Master Netting				2			―			2
Total Derivative Assets: Current				174			163			11	(a)
Derivative Assets: Non-current
Subject to Master Netting				70			63			7	(b)
Derivative Liabilities: Current
Subject to Master Netting				214			209			5
Not Subject to Master Netting				1			―			1
Total Derivative Liabilities: Current				215			209			6	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				98			90			8
Not Subject to Master Netting				6			―			6
Total Derivative Liabilities: Non-current				104			90			14	(d)

			December 31, 2012
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheet
Derivative Assets: Current
Subject to Master Netting			$	137		$	110		$	27
Not Subject to Master Netting				2			―			2
Total Derivative Assets: Current				139			110			29	(a)
Derivative Assets: Non-current
Subject to Master Netting				81			51			30	(b)
Derivative Liabilities: Current
Subject to Master Netting				136			125			11
Not Subject to Master Netting				1			―			1
Total Derivative Liabilities: Current				137			125			12	(c)
Derivative Liabilities: Non-current
Subject to Master Netting				55			51			4
Not Subject to Master Netting				7			―			7
Total Derivative Liabilities: Non-current				62			51			11	(d)

Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities

		Three Months Ended March 31,
(in millions)		2013			2012
Location of Pre-tax Gains and (Losses) Recognized in Earnings
Commodity contracts
Revenue, nonregulated electric, natural gas and other		$	(91)		$	71
Fuel used in electric generation and purchased power - nonregulated			(7)			―
Total Pre-tax (Losses) Gains Recognized in Earnings		$	(98)		$	71
Location of Pre-tax Gains and (Losses) Recognized as Regulatory Assets or Liabilities
Commodity contracts
Regulatory asset		$	―		$	(2)
Interest rate contracts
Regulatory asset			1			1
Total Pre-tax Gains (Losses) Recognized as Regulatory Assets of Liabilities		$	1		$	(1)

Schedule Of Information Regarding Derivative Instruments That Contain Credit-Risk Related Contingent Features

			March 31, 2013
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	512		$	230		$	79		$	151		$	279
Collateral already posted				215			35			3			32			180
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				202			195			76			119			7

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Florida			Duke Energy Ohio
Aggregate fair value amounts of derivative instruments in a net liability position			$	466		$	286		$	108		$	178		$	176
Collateral already posted				163			59			9			50			104
Additional cash collateral or letters of credit in the event credit-risk-related contingent features were triggered at the end of the reporting period				230			227			99			128			2

Schedule Of Cash Collateral Under Master Netting Arrangements

March 31, 2013

December 31, 2012

(in millions)

Receivables

Payables

Receivables

Payables

Duke Energy

Amounts offset against net derivative positions

$

107

$

―

$

73

$

―

Amounts not offset against net derivative positions

108

―

93

―

Progress Energy

Amounts offset against net derivative positions

35

―

58

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Progress

Amounts offset against net derivative positions

3

―

9

―

Amounts not offset against net derivative positions

―

―

―

―

Duke Energy Florida

Amounts offset against net derivative positions

32

―

49

―

Amounts not offset against net derivative positions

―

―

1

―

Duke Energy Ohio

Amounts offset against net derivative positions

72

―

15

―

Amounts not offset against net derivative positions

$

108

$

―

$

92

$

―

Duke Energy Indiana [Member]

Derivative [Line Items]

Notional Amounts Of Derivative Instruments Related To Interest Rate Risk

			March 31, 2013
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Ohio			Duke Energy Indiana
Cash flow hedges(a)			$	1,047		$	―		$	―		$	―		$	―
Undesignated contracts				238			―			―			27			200
Fair value hedges				250			―			―			250			―
	Total notional amount		$	1,535		$	―		$	―		$	277		$	200

			December 31, 2012
(in millions)			Duke Energy			Progress Energy			Duke Energy Progress			Duke Energy Ohio			Duke Energy Indiana
Cash flow hedges(a)			$	1,047		$	―		$	―		$	―		$	―
Undesignated contracts				290			50			50			27			200
Fair value hedges				250			―			―			250			―
	Total notional amount		$	1,587		$	50		$	50		$	277		$	200

Location And Fair Value Amounts Of Derivatives Reflected In The Condensed Consolidated Balance Sheets

		March 31, 2013						December 31, 2012
(in millions)		Asset			Liability			Asset			Liability
Derivatives Not Designated as Hedging Instruments
Commodity contracts
Current assets: other		$	5		$	―		$	10		$	―
Interest rate contracts
Current liabilities: other			―			55			―			63
Total Derivatives Not Designated as Hedging Instruments		$	5		$	55		$	10		$	63
Total Derivatives		$	5		$	55		$	10		$	63

Offsetting Assets and Liabilities

			March 31, 2013
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheets
Derivative Assets: Current
Subject to Master Netting			$	5		$	―		$	5	(a)
Derivative Liabilities: Current
Not Subject to Master Netting				55			―			55	(b)

			December 31, 2012
(in millions)			Gross amounts recognized			Gross amounts offset			Net amounts included on the Condensed Consolidated Balance Sheets
Derivative Assets: Current
Subject to Master Netting			$	10		$	―		$	10	(a)
Derivative Liabilities: Current
Not Subject to Master Netting				63			―			63	(b)

Undesignated Contracts - Location And Amount Of Pre-Tax Gains And (Losses) Recognized In Income Or As Regulatory Assets Or Liabilities

		Three Months Ended March 31,
(in millions)		2013			2012
Location of Pre-tax Gains and (Losses) Recognized as Regulatory Assets or Liabilities
Commodity contracts
Regulatory liability		$	4		$	4
Interest rate contracts
Regulatory asset			8			21
Total Pre-tax Gains (Losses) Recognized as Regulatory Assets of Liabilities		$	12		$	25

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