Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

QUARTERLY FINANCIAL DATA (UNAUDITED)

DUKE ENERGY

Quarterly EPS amounts may not sum to the full-year total due to changes in the weighted average number of common shares outstanding and rounding.

	First		Second			Third			Fourth
(in millions, except per share data)	Quarter		Quarter			Quarter			Quarter			Total
2018
Operating revenues	$	6,135	$	5,643		$	6,628		$	6,115		$	24,521
Operating income	1,256		979			1,579			871			4,685
Income from continuing operations	622		507			1,062			434			2,625
(Loss) Income from discontinued operations, net of tax	—		(5		)	4			20			19
Net income	622		502			1,066			454			2,644
Net income attributable to Duke Energy Corporation	620		500			1,082			464			2,666
Earnings per share:
Income from continuing operations attributable to Duke Energy Corporation common stockholders
Basic	$	0.88	$	0.72		$	1.51		$	0.62		$	3.73
Diluted	$	0.88	$	0.72		$	1.51		$	0.62		$	3.73
(Loss) Income from discontinued operations attributable to Duke Energy Corporation common stockholders
Basic	$	—	$	(0.01	)	$	—		$	0.03		$	0.03
Diluted	$	—	$	(0.01	)	$	—		$	0.03		$	0.03
Net income attributable to Duke Energy Corporation common stockholders
Basic	$	0.88	$	0.71		$	1.51		$	0.65		$	3.76
Diluted	$	0.88	$	0.71		$	1.51		$	0.65		$	3.76
2017
Operating revenues	$	5,729	$	5,555		$	6,482		$	5,799		$	23,565
Operating income	1,402		1,353			1,661			1,209			5,625
Income from continuing operations	717		691			957			705			3,070
Loss from discontinued operations, net of tax	—		(2		)	(2		)	(2		)	(6		)
Net income	717		689			955			703			3,064
Net income attributable to Duke Energy Corporation	716		686			954			703			3,059
Earnings per share:
Income from continuing operations attributable to Duke Energy Corporation common stockholders
Basic	$	1.02	$	0.98		$	1.36		$	1.00		$	4.37
Diluted	$	1.02	$	0.98		$	1.36		$	1.00		$	4.37
Loss from discontinued operations attributable to Duke Energy Corporation common stockholders
Basic	$	—	$	—		$	—		$	—		$	(0.01	)
Diluted	$	—	$	—		$	—		$	—		$	(0.01	)
Net income attributable to Duke Energy Corporation common stockholders
Basic	$	1.02	$	0.98		$	1.36		$	1.00		$	4.36
Diluted	$	1.02	$	0.98		$	1.36		$	1.00		$	4.36

The following table includes unusual or infrequently occurring items in each quarter during the two most recently completed fiscal years. All amounts discussed below are pretax.

	First			Second			Third			Fourth
(in millions)	Quarter			Quarter			Quarter			Quarter			Total
2018
Costs to Achieve Piedmont Merger (see Note 2)	$	(17	)	$	(20	)	$	(16	)	$	(31	)	$	(84	)
Regulatory and Legislative Impacts (see Note 4)	(86		)	(179		)	—			—			(265		)
Sale of Retired Plant (see Note 3)	(107		)	—			—			—			(107		)
Impairment Charges (see Notes 4, 11 and 12)	(55		)	—			(93		)	(60		)	(208		)
Severance Charges (see Note 20)	—			—			—			(187		)	(187		)
Impacts of the Tax Act (see Note 23)	(76		)	—			3			53			(20		)
Total	$	(341	)	$	(199	)	$	(106	)	$	(225	)	$	(871	)
2017
Costs to Achieve Mergers (see Note 2)	$	(16	)	$	(30	)	$	(23	)	$	(34	)	$	(103	)
Regulatory Settlements (see Note 4)	—			—			(135		)	(23		)	(158		)
Commercial Renewables Impairments (see Notes 10 and 11)	—			—			(84		)	(18		)	(102		)
Impacts of the Tax Act (see Note 23)	—			—			—			102			102
Total	$	(16	)	$	(30	)	$	(242	)	$	27		$	(261	)

DUKE ENERGY CAROLINAS

	First		Second		Third		Fourth
(in millions)	Quarter		Quarter		Quarter		Quarter		Total
2018
Operating revenues	$	1,763	$	1,672	$	2,090	$	1,775	$	7,300
Operating income	482		224		713		241		1,660
Net income	323		117		496		135		1,071
2017
Operating revenues	$	1,716	$	1,729	$	2,136	$	1,721	$	7,302
Operating income	471		471		763		384		2,089
Net income	270		273		466		205		1,214

The following table includes unusual or infrequently occurring items in each quarter during the two most recently completed fiscal years. All amounts discussed below are pretax.

	First			Second			Third			Fourth
(in millions)	Quarter			Quarter			Quarter			Quarter			Total
2018
Costs to Achieve Piedmont Merger (see Note 2)	$	(4	)	$	(2	)	$	(2	)	$	(1	)	$	(9	)
Regulatory and Legislative Impacts (see Note 4)	(19		)	(179		)	—			—			(198		)
Severance Charges (see Note 20)	—			—			—			(102		)	(102		)
Impacts of the Tax Act (see Note 23)	—			—			(1		)	—			(1		)
Total	$	(23	)	$	(181	)	$	(3	)	$	(103	)	$	(310	)
2017
Costs to Achieve Piedmont Merger (see Note 2)	$	(4	)	$	(6	)	$	(5	)	$	(5	)	$	(20	)
Impacts of the Tax Act (see Note 23)	—			—			—			(15		)	(15		)
Total	$	(4	)	$	(6	)	$	(5	)	$	(20	)	$	(35	)

PROGRESS ENERGY

	First		Second		Third		Fourth
(in millions)	Quarter		Quarter		Quarter		Quarter		Total
2018
Operating revenues	$	2,576	$	2,498	$	3,045	$	2,609	$	10,728
Operating income	447		484		663		334		1,928
Net income	237		267		406		123		1,033
Net income attributable to Parent	235		265		404		123		1,027
2017
Operating revenues	$	2,179	$	2,392	$	2,864	$	2,348	$	9,783
Operating income	471		576		641		459		2,147
Net income	201		277		343		447		1,268
Net income attributable to Parent	199		274		341		444		1,258

The following table includes unusual or infrequently occurring items in each quarter during the two most recently completed fiscal years. All amounts discussed below are pretax.

	First			Second			Third			Fourth
(in millions)	Quarter			Quarter			Quarter			Quarter			Total
2018
Costs to Achieve Piedmont Merger (see Note 2)	$	(4	)	$	(3	)	$	(1	)	$	(2	)	$	(10	)
Regulatory and Legislative Impacts (see Note 4)	(67		)	—			—			—			(67		)
Impairment Charges (see Note 4)	—			—			—			(60		)	(60		)
Severance Charges (see Note 20)	—			—			—			(69		)	(69		)
Impacts of the Tax Act (see Note 23)	(1		)	—			(5		)	(19		)	(25		)
Total	$	(72	)	$	(3	)	$	(6	)	$	(150	)	$	(231	)
2017
Costs to Achieve Piedmont Merger (see Note 2)	$	(4	)	$	(7	)	$	(6	)	$	(6	)	$	(23	)
Regulatory Settlements (see Note 4)	—			—			(135		)	(23		)	(158		)
Impacts of the Tax Act (see Note 23)	—			—			—			246			246
Total	$	(4	)	$	(7	)	$	(141	)	$	217		$	65

DUKE ENERGY PROGRESS

	First		Second		Third		Fourth
(in millions)	Quarter		Quarter		Quarter		Quarter		Total
2018
Operating revenues	$	1,460	$	1,291	$	1,582	$	1,366	$	5,699
Operating income	269		233		330		227		1,059
Net income	177		139		216		135		667
2017
Operating revenues	$	1,219	$	1,199	$	1,460	$	1,251	$	5,129
Operating income	274		270		398		243		1,185
Net income	147		154		246		168		715

The following table includes unusual or infrequently occurring items in each quarter during the two most recently completed fiscal years. All amounts discussed below are pretax.

	First			Second			Third			Fourth
(in millions)	Quarter			Quarter			Quarter			Quarter			Total
2018
Costs to Achieve Piedmont Merger (see Note 2)	$	(2	)	$	(2	)	$	(1	)	$	(1	)	$	(6	)
Regulatory and Legislative Impacts (see Note 4)	(67		)	—			—			—			(67		)
Severance Charges (see Note 20)	—			—			—			(52		)	(52		)
Impacts of the Tax Act (see Note 23)	—			—			(4		)	(15		)	(19		)
Total	$	(69	)	$	(2	)	$	(5	)	$	(68	)	$	(144	)
2017
Costs to Achieve Piedmont Merger (see Note 2)	$	(2	)	$	(4	)	$	(4	)	$	(4	)	$	(14	)
Regulatory Settlements (see Note 4)	—			—			—			(23		)	(23		)
Impacts of the Tax Act (see Note 23)	—			—			—			40			40
Total	$	(2	)	$	(4	)	$	(4	)	$	13		$	3

DUKE ENERGY FLORIDA

	First		Second		Third		Fourth
(in millions)	Quarter		Quarter		Quarter		Quarter		Total
2018
Operating revenues	$	1,115	$	1,203	$	1,462	$	1,241	$	5,021
Operating income	173		245		331		107		856
Net income	103		168		243		40		554
2017
Operating revenues	$	959	$	1,191	$	1,401	$	1,095	$	4,646
Operating income	192		301		236		212		941
Net income	90		158		120		344		712

The following table includes unusual or infrequently occurring items in each quarter during the two most recently completed fiscal years. All amounts discussed below are pretax.

	First			Second			Third			Fourth
(in millions)	Quarter			Quarter			Quarter			Quarter			Total
2018
Costs to Achieve Piedmont Merger (see Note 2)	$	(2	)	$	(1	)	$	—		$	(1	)	$	(4	)
Impairment Charges (see Note 4)	—			—			—			(60		)	(60		)
Severance Charges (see Note 20)	—			—			—			(17		)	(17		)
Impacts of the Tax Act (see Note 23)	—			—			(2		)	2			—
Total	$	(2	)	$	(1	)	$	(2	)	$	(76	)	$	(81	)
2017
Costs to Achieve Piedmont Merger (see Note 2)	$	(2	)	$	(3	)	$	(2	)	$	(2	)	$	(9	)
Regulatory Settlements (see Note 4)	—			—			(135		)	—			(135		)
Impacts of the Tax Act (see Note 23)	—			—			—			226			226
Total	$	(2	)	$	(3	)	$	(137	)	$	224		$	82

DUKE ENERGY OHIO

	First			Second		Third			Fourth
(in millions)	Quarter			Quarter		Quarter			Quarter		Total
2018
Operating revenues	$	524		$	459	$	469		$	505	$	1,957
Operating (loss) income	(21		)	77		139			93		288
Net (loss) income	(25		)	46		100			55		176
2017
Operating revenues	$	518		$	437	$	471		$	497	$	1,923
Operating income	82			64		101			73		320
Loss from discontinued operations, net of tax	—			—		(1		)	—		(1		)
Net income	42			30		55			65		192

The following table includes unusual or infrequently occurring items in each quarter during the two most recently completed fiscal years. All amounts discussed below are pretax.

	First			Second			Third			Fourth
(in millions)	Quarter			Quarter			Quarter			Quarter			Total
2018
Costs to Achieve Piedmont Merger (see Note 2)	$	(3	)	$	(5	)	$	—		$	(6	)	$	(14	)
Sale of Retired Plant (see Note 3)	(107		)	—			—			—			(107		)
Severance Charges (see Note 20)	—			—			—			(6		)	(6		)
Impacts of the Tax Act (see Note 23)	—			—			—			(2		)	(2		)
Total	$	(110	)	$	(5	)	$	—		$	(14	)	$	(129	)
2017
Costs to Achieve Piedmont Merger (see Note 2)	$	(1	)	$	(1	)	$	(2	)	$	(2	)	$	(6	)
Impacts of the Tax Act (see Note 23)	—			—			—			23			23
Total	$	(1	)	$	(1	)	$	(2	)	$	21		$	17

DUKE ENERGY INDIANA

	First		Second		Third		Fourth
(in millions)	Quarter		Quarter		Quarter		Quarter		Total
2018
Operating revenues	$	731	$	738	$	819	$	771	$	3,059
Operating income	168		169		173		133		643
Net income	100		98		119		76		393
2017
Operating revenues	$	758	$	742	$	802	$	745	$	3,047
Operating income	184		208		228		166		786
Net income	91		106		121		36		354

The following table includes unusual or infrequently occurring items in each quarter during the two most recently completed fiscal years. All amounts discussed below are pretax.

	First			Second			Third			Fourth
(in millions)	Quarter			Quarter			Quarter			Quarter			Total
2018
Costs to Achieve Piedmont Merger (see Note 2)	$	—		$	—		$	(2	)	$	—		$	(2	)
Severance Charges (see Note 20)	—			—			—			(7		)	(7		)
Total	$	—		$	—		$	(2	)	$	(7	)	$	(9	)
2017
Costs to Achieve Piedmont Merger (see Note 2)	$	(1	)	$	(2	)	$	(2	)	$	(1	)	$	(6	)
Impacts of the Tax Act (see Note 23)	—			—			—			(55		)	(55		)
Total	$	(1	)	$	(2	)	$	(2	)	$	(56	)	$	(61	)

PIEDMONT

	First		Second			Third			Fourth
(in millions)	Quarter		Quarter			Quarter			Quarter		Total
2018
Operating revenues	$	553	$	215		$	172		$	435	$	1,375
Operating income (loss)	161		5			(19		)	79		226
Net income (loss)	110		(8		)	(21		)	48		129
2017
Operating revenues	$	500	$	201		$	183		$	444	$	1,328
Operating income (loss)	170		5			(4		)	126		297
Net income (loss)	95		(8		)	(11		)	63		139

The following table includes unusual or infrequently occurring items in each quarter during the two most recently completed fiscal years. All amounts discussed below are pretax.

	First			Second			Third			Fourth
(in millions)	Quarter			Quarter			Quarter			Quarter			Total
2018
Costs to Achieve Piedmont Merger (see Note 2)	$	(6	)	$	(9	)	$	(11	)	$	(22	)	$	(48	)
Severance Charges (see Note 20)	—			—			—			(2		)	(2		)
Total	$	(6	)	$	(9	)	$	(11	)	$	(24	)	$	(50	)
2017
Costs to Achieve Piedmont Merger (see Note 2)	$	(6	)	$	(13	)	$	(8	)	$	(19	)	$	(46	)
Impacts of the Tax Act (see Note 23)	—			—			—			2			2
Total	$	(6	)	$	(13	)	$	(8	)	$	(17	)	$	(44	)