Business Segments (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting Information [Line Items]

Business Segment Data

Business segment information is presented in the following tables. Segment assets presented exclude intercompany assets.

	Three Months Ended June 30, 2019
	Electric		Gas				Total
	Utilities and		Utilities and		Commercial		Reportable
(in millions)	Infrastructure		Infrastructure		Renewables		Segments		Other			Eliminations			Total
Unaffiliated revenues	$	5,467	$	282	$	118	$	5,867	$	6		$	—		$	5,873
Intersegment revenues	8		24		—		32		19			(51		)	—
Total revenues	$	5,475	$	306	$	118	$	5,899	$	25		$	(51	)	$	5,873
Segment income (loss)	$	809	$	40	$	86	$	935	$	(115	)	$	—		$	820
Add back noncontrolling interests(a)															(84		)
Add back preferred stock dividend															12
Net income															$	748
Segment assets	$	131,640	$	12,943	$	4,870	$	149,453	$	3,815		$	181		$	153,449

	Three Months Ended June 30, 2018
	Electric		Gas				Total
	Utilities and		Utilities and		Commercial		Reportable
(in millions)	Infrastructure		Infrastructure		Renewables		Segments		Other			Eliminations			Total
Unaffiliated revenues	$	5,215	$	294	$	119	$	5,628	$	15		$	—		$	5,643
Intersegment revenues	8		24		—		32		17			(49		)	—
Total revenues	$	5,223	$	318	$	119	$	5,660	$	32		$	(49	)	$	5,643
Segment income (loss)(b)(c)	$	575	$	28	$	38	$	641	$	(136	)	$	—		$	505
Add back noncontrolling interests															2
Loss from discontinued operations, net of tax															(5		)
Net income															$	502

	Six Months Ended June 30, 2019
	Electric		Gas		Total
	Utilities and		Utilities and		Reportable
(in millions)	Infrastructure		Infrastructure		Segments		Other			Total
Total revenues	$	691	$	273	$	964	$	—		$	964
Segment income/Net (loss) income	$	67	$	52	$	119	$	(3	)	$	116

	Six Months Ended June 30, 2018
	Electric		Gas		Total
	Utilities and		Utilities and		Reportable
(in millions)	Infrastructure		Infrastructure		Segments		Other			Total
Total revenues	$	682	$	277	$	959	$	24		$	983
Segment income/Net (loss) income(a)	$	72	$	52	$	124	$	(103	)	$	21

(a)    Other includes the loss on the sale of Beckjord described above.

Duke Energy Ohio [Member]

Segment Reporting Information [Line Items]

Business Segment Data

	Three Months Ended June 30, 2019
	Electric		Gas		Total
	Utilities and		Utilities and		Reportable
(in millions)	Infrastructure		Infrastructure		Segments		Other			Total
Total revenues	$	336	$	97	$	433	$	—		$	433
Segment income/Net (loss) income	$	31	$	17	$	48	$	(1	)	$	47
Segment assets	$	5,914	$	2,948	$	8,862	$	27		$	8,889

	Three Months Ended June 30, 2018
	Electric		Gas		Total
	Utilities and		Utilities and		Reportable
(in millions)	Infrastructure		Infrastructure		Segments		Other			Total
Total revenues	$	346	$	103	$	449	$	10		$	459
Segment income/Net (loss) income	$	39	$	18	$	57	$	(11	)	$	46