Business Segments (Tables)

3 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Segment Reporting Information [Line Items]


		Three Months Ended September 30, 2013
(in millions)		USFE&G		International Energy		Commercial Power		Total Reportable Segments		Other		Eliminations		Consolidated
Unaffiliated revenues^(a)(b)(c)		$	5,768	$	370	$	541	$	6,679	$	30	$	―	$	6,709
Intersegment revenues			18		―		9		27		24		(51)		―
	Total revenues	$	5,786	$	370	$	550	$	6,706	$	54	$	(51)	$	6,709
Segment income^(a)(b)(c)(d)		$	923	$	116	$	27	$	1,066	$	(76)	$	―	$	990
Add back noncontrolling interests component															4
Income from discontinued operations, net of tax															14
Net income														$	1,008
Segment assets as of September 30, 2013		$	99,269	$	5,669	$	6,852	$	111,790	$	2,658	$	142	$	114,590

(a)	In May 2013, Duke Energy Ohio implemented revised customer rates approved by the PUCO. This increase impacts USFE&G. See Note 4 for additional information about the revised customer rates.
(b)	In June 2013, Duke Energy Progress implemented revised customer rates approved by the NCUC. This increase impacts USFE&G. See Note 4 for additional information about the revised customer rates.
(c)	In September 2013, Duke Energy Carolinas implemented revised customer rates approved by the NCUC and the PSCSC. This increase impacts USFE&G. See Note 4 for additional information about the revised customer rates.
(d)	Other includes after-tax costs to achieve the merger with Progress Energy of $54 million. See Note 2 for additional information about the merger.


		Three Months Ended September 30, 2012
(in millions)		USFE&G		International Energy		Commercial Power		Total Reportable Segments		Other		Eliminations		Consolidated
Unaffiliated revenues		$	5,830	$	382	$	508	$	6,720	$	2	$	―	$	6,722
Intersegment revenues			12		―		17		29		18		(47)		―
	Total revenues	$	5,842	$	382	$	525	$	6,749	$	20	$	(47)	$	6,722
Segment income^(a)(b)		$	790	$	103	$	12	$	905	$	(315)	$	―	$	590
Add back noncontrolling interests component															4
Income from discontinued operations, net of tax															4
Net income														$	598

(a)	USFE&G recorded an impairment related to the Edwardsport Integrated Gasification Combined Cycle (IGCC) project. See Note 4 for additional information on the Edwardsport impairment.
(b)	Other includes after-tax costs to achieve the merger with Progress Energy of $293 million. See Note 2 for additional information about the merger.


		Nine Months Ended September 30, 2013
(in millions)		USFE&G		International Energy		Commercial Power		Total Reportable Segments		Other		Eliminations		Consolidated
Unaffiliated revenues^(a)(b)(c)		$	15,731	$	1,168	$	1,527	$	18,426	$	60	$	―	$	18,486
Intersegment revenues			35		―		32		67		65		(132)		―
	Total revenues	$	15,766	$	1,168	$	1,559	$	18,493	$	125	$	(132)	$	18,486
Segment income^{(a)(b)(c)(d)(e)(f)}		$	1,932	$	300	$	26	$	2,258	$	(292)	$	―	$	1,966
Add back noncontrolling interests component															7
Income from discontinued operations, net of tax															11
Net income														$	1,984

(a)	In May 2013, Duke Energy Ohio implemented revised customer rates approved by the PUCO. This increase impacts USFE&G. See Note 4 for additional information about the revised customer rates.
(b)	In June 2013, Duke Energy Progress implemented revised customer rates approved by the NCUC. This increase impacts USFE&G. See Note 4 for additional information about the revised customer rates.
(c)	In September 2013, Duke Energy Carolinas implemented revised customer rates approved by the NCUC and the PSCSC. This increase impacts USFE&G. See Note 4 for additional information about the revised customer rates.
(d)	USFE&G recorded an impairment charge related to Duke Energy Florida's Crystal River Unit 3. See Note 4 for additional information about the Crystal River Unit 3 impairment.
(e)	USFE&G recorded an impairment charge related to Duke Energy Progress' Shearon Harris Nuclear Station (Harris) site. USFE&G also recorded an impairment charge related to Duke Energy Florida's proposed Levy Nuclear Station (Levy). See Note 4 for additional information about the Harris site and Levy site impairments.
(f)	Other includes after-tax costs to achieve the merger with Progress Energy of $139 million. See Note 2 for additional information about the merger.


		Nine Months Ended September 30, 2012
(in millions)		USFE&G		International Energy		Commercial Power		Total Reportable Segments		Other		Eliminations		Consolidated
Unaffiliated revenues		$	11,178	$	1,181	$	1,560	$	13,919	$	10	$	―	$	13,929
Intersegment revenues			29		―		47		76		41		(117)		―
	Total revenues	$	11,207	$	1,181	$	1,607	$	13,995	$	51	$	(117)	$	13,929
Segment income^(a)(b)		$	1,263	$	350	$	71	$	1,684	$	(356)	$	―	$	1,328
Add back noncontrolling interests component															12
Income from discontinued operations, net of tax															5
Net income														$	1,345

(a)	USFE&G recorded an impairment charge related to Duke Energy Indiana's IGCC project. USFE&G also recorded the reversal of expenses of $60 million related to a prior year Voluntary Opportunity Plan in accordance with Duke Energy Carolinas' 2011 rate case. See Note 4 for additional information about the impairment charges.
(b)	Other includes after-tax costs to achieve the merger with Progress Energy of $306 million. See Note 2 for additional information about the merger.

Duke Energy Carolinas [Member]

Segment Reporting Information [Line Items]

Schedule of Net Loss for Other Segment


	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2013		2012		2013		2012
Duke Energy Carolinas	$	(26)	$	(119)	$	(69)	$	(137)
Progress Energy		(72)		(181)		(205)		(278)
Duke Energy Progress		(20)		(109)		(40)		(119)
Duke Energy Florida		(6)		(23)		(18)		(30)
Duke Energy Indiana		(5)		(14)		(13)		(19)

Progress Energy [Member]

Segment Reporting Information [Line Items]

Schedule of Net Loss for Other Segment


	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2013		2012		2013		2012
Duke Energy Carolinas	$	(26)	$	(119)	$	(69)	$	(137)
Progress Energy		(72)		(181)		(205)		(278)
Duke Energy Progress		(20)		(109)		(40)		(119)
Duke Energy Florida		(6)		(23)		(18)		(30)
Duke Energy Indiana		(5)		(14)		(13)		(19)

Duke Energy Progress [Member]

Segment Reporting Information [Line Items]

Schedule of Net Loss for Other Segment


	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2013		2012		2013		2012
Duke Energy Carolinas	$	(26)	$	(119)	$	(69)	$	(137)
Progress Energy		(72)		(181)		(205)		(278)
Duke Energy Progress		(20)		(109)		(40)		(119)
Duke Energy Florida		(6)		(23)		(18)		(30)
Duke Energy Indiana		(5)		(14)		(13)		(19)

Duke Energy Florida [Member]

Segment Reporting Information [Line Items]

Schedule of Net Loss for Other Segment


	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2013		2012		2013		2012
Duke Energy Carolinas	$	(26)	$	(119)	$	(69)	$	(137)
Progress Energy		(72)		(181)		(205)		(278)
Duke Energy Progress		(20)		(109)		(40)		(119)
Duke Energy Florida		(6)		(23)		(18)		(30)
Duke Energy Indiana		(5)		(14)		(13)		(19)

Duke Energy Ohio [Member]

Segment Reporting Information [Line Items]

Business Segment Data

		Three Months Ended September 30, 2013
(in millions)		Franchised Electric and Gas		Commercial Power		Total Reportable Segments		Other		Eliminations		Consolidated
Unaffiliated revenues^(a)		$	421	$	398	$	819	$	―	$	―	$	819
Intersegment revenues			―		6		6		―		(6)		―
	Total revenues	$	421	$	404	$	825	$	―	$	(6)	$	819
Segment income / Consolidated net income^(a)		$	42	$	30	$	72	$	(13)	$	―	$	59
Segment assets as of September 30, 2013		$	6,631	$	4,088	$	10,719	$	103	$	(165)	$	10,657

(a)	In May 2013, Duke Energy Ohio implemented revised customer rates approved by the PUCO. This increase impacts FE&G. See Note 4 for additional information about the revised customer rates.

		Three Months Ended September 30, 2012
(in millions)		Franchised Electric and Gas		Commercial Power		Total Reportable Segments		Other		Eliminations		Consolidated
Unaffiliated revenues		$	431	$	326	$	757	$	―	$	―	$	757
Intersegment revenues			―		15		15		―		(15)		―
	Total revenues	$	431	$	341	$	772	$	―	$	(15)	$	757
Segment income (loss) / Consolidated net income		$	49	$	(17)	$	32	$	(18)	$	―	$	14

		Nine Months Ended September 30, 2013
(in millions)		Franchised Electric and Gas		Commercial Power		Total Reportable Segments		Other		Eliminations		Consolidated
Unaffiliated revenues^(a)		$	1,317	$	1,060	$	2,377	$	―	$	―	$	2,377
Intersegment revenues			―		25		25		―		(25)		―
	Total revenues	$	1,317	$	1,085	$	2,402	$	―	$	(25)	$	2,377
Segment income (loss) / Consolidated net income^(a)		$	122	$	(3)	$	119	$	(23)	$	―	$	96

(a)	In May 2013, Duke Energy Ohio implemented revised customer rates approved by the PUCO. This increase impacts FE&G. See Note 4 for additional information about the revised customer rates.

		Nine Months Ended September 30, 2012
(in millions)		Franchised Electric and Gas		Commercial Power		Total Reportable Segments		Other		Eliminations		Consolidated
Unaffiliated revenues		$	1,291	$	1,095	$	2,386	$	―	$	―	$	2,386
Intersegment revenues			―		42		42		―		(42)		―
	Total revenues	$	1,291	$	1,137	$	2,428	$	―	$	(42)	$	2,386
Segment income / Consolidated net income		$	113	$	44	$	157	$	(24)	$	―	$	133

Duke Energy Indiana [Member]

Segment Reporting Information [Line Items]

Schedule of Net Loss for Other Segment


	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2013		2012		2013		2012
Duke Energy Carolinas	$	(26)	$	(119)	$	(69)	$	(137)
Progress Energy		(72)		(181)		(205)		(278)
Duke Energy Progress		(20)		(109)		(40)		(119)
Duke Energy Florida		(6)		(23)		(18)		(30)
Duke Energy Indiana		(5)		(14)		(13)		(19)

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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