Acquisitions and Sales of Other Assets (Tables)

12 Months Ended

Dec. 31, 2012

Significant Acquisitions and Disposals [Line Items]

Accounting Charges Related to the Merger Consummation

(in millions)	Duke Energy		Duke Energy Carolinas		Progress Energy		Progress Energy Carolinas		Progress Energy Florida		Duke Energy Ohio		Duke Energy Indiana
FERC Mitigation	$	117	$	46	$	71	$	71	$	―	$	―	$	―
Severance costs		196		63		82		55		27		21		18
Community support, charitable contributions and other		169		79		74		63		11		7		6
Total	$	482	$	188	$	227	$	189	$	38	$	28	$	24

Schedule of Purchase Price Calculation

(dollars in millions, except per share amounts; shares in thousands)
Progress Energy common shares outstanding at July 2, 2012		296,116
Exchange ratio		0.87083
Duke Energy common shares issued for Progress Energy common shares outstanding		257,867
Closing price of Duke Energy common shares on July 2, 2012	$	69.84
Purchase price for common stock	$	18,009
Fair value of outstanding earned stock compensation awards		62
Total purchase price	$	18,071

Schedule of Purchase Price Allocation

(in millions)
Current assets	$	3,204
Property, plant and equipment		23,279
Goodwill		12,467
Other long-term assets, excluding goodwill		9,994
Total assets		48,944
Current liabilities, including current maturities of long-term debt		3,581
Long-term liabilities, preferred stock and noncontrolling interests		10,546
Long-term debt		16,746
Total liabilities and preferred stock		30,873
Total purchase price	$	18,071

Pro Forma Information

	Year Ended December 31,
(in millions, except per share amounts)	2012		2011
Revenues	$	23,976	$	23,445
Net Income Attributable to Duke Energy Corporation		2,417		2,397
Basic and Diluted Earnings Per Share		3.43		3.41

Schedule Of Sale Of Other Assets

(in millions)		Duke Energy		Duke Energy Carolinas		Duke Energy Ohio		Duke Energy Indiana
Year Ended December 31,
2012(a)		$	187	$	1	$	6	$	—
2011			12		2		7		1
2010			160		8		13		—
(a)	Duke Energy amount relates to proceeds from the disposition of non-core business assets within the Commercial Power segment for which no material gain or loss was recognized.

Duke Energy Carolinas [Member]

Significant Acquisitions and Disposals [Line Items]

Schedule Of Sale Of Other Assets

(in millions)		Duke Energy		Duke Energy Carolinas		Duke Energy Ohio		Duke Energy Indiana
Year Ended December 31,
2012(a)		$	187	$	1	$	6	$	—
2011			12		2		7		1
2010			160		8		13		—
(a)	Duke Energy amount relates to proceeds from the disposition of non-core business assets within the Commercial Power segment for which no material gain or loss was recognized.

Duke Energy Ohio [Member]

Significant Acquisitions and Disposals [Line Items]

Schedule Of Sale Of Other Assets

(in millions)		Duke Energy		Duke Energy Carolinas		Duke Energy Ohio		Duke Energy Indiana
Year Ended December 31,
2012(a)		$	187	$	1	$	6	$	—
2011			12		2		7		1
2010			160		8		13		—
(a)	Duke Energy amount relates to proceeds from the disposition of non-core business assets within the Commercial Power segment for which no material gain or loss was recognized.

Duke Energy Indiana [Member]

Significant Acquisitions and Disposals [Line Items]

Schedule Of Sale Of Other Assets

(in millions)		Duke Energy		Duke Energy Carolinas		Duke Energy Ohio		Duke Energy Indiana
Year Ended December 31,
2012(a)		$	187	$	1	$	6	$	—
2011			12		2		7		1
2010			160		8		13		—
(a)	Duke Energy amount relates to proceeds from the disposition of non-core business assets within the Commercial Power segment for which no material gain or loss was recognized.