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Business Segments
 9 Months Ended
Sep. 30, 2019
Segment Reporting [Abstract]  
Business Segments BUSINESS SEGMENTS
Duke Energy
Duke Energy's segment structure includes the following segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure and Commercial Renewables. The Electric Utilities and Infrastructure segment primarily includes Duke Energy's regulated electric utilities in the Carolinas, Florida and the Midwest. The Gas Utilities and Infrastructure segment includes Piedmont, Duke Energy's natural gas local distribution companies in Ohio and Kentucky, and Duke Energy's natural gas storage and midstream pipeline investments.
The Commercial Renewables segment is primarily comprised of nonregulated utility-scale wind and solar generation assets located throughout the U.S. On April 24, 2019, Duke Energy executed an agreement to sell a minority interest in a portion of certain renewable assets. The sale closed on September 6, 2019, and resulted in pretax proceeds to Duke Energy of $415 million. The portion of Duke Energy’s commercial renewables energy portfolio sold includes 49% of 37 operating wind, solar and battery storage assets and 33% of 11 operating solar assets across the U.S. Duke Energy retained control of these assets, and, therefore, no gain or loss was recognized on the Condensed Consolidated Statements of Operations. The difference between the fair value of the consideration received and the carrying value of the noncontrolling interest claim on net assets of $465 million, net of a tax benefit of $8 million, was recorded in equity.
During 2019, Duke Energy evaluated recoverability of the wind and solar generation assets included in the minority interest sale as a result of the portfolio fair value of consideration received being less than the carrying value of the assets and determined the assets were all recoverable. Additionally, in 2019, Duke Energy evaluated recoverability of its renewable merchant plants principally located in the Electric Reliability Council of Texas West market due to declining market pricing and declining long-term forecasted energy prices, primarily driven by lower forecasted natural gas prices. Duke Energy determined that the assets were not impaired because the carrying value of $160 million approximates the aggregate estimated future cash flows and further testing was not required. A continued decline in energy market pricing would likely result in a future impairment.
The remainder of Duke Energy’s operations is presented as Other, which is primarily comprised of interest expense on holding company debt, unallocated corporate costs, Duke Energy’s wholly owned captive insurance company, Bison, and Duke Energy's interest in NMC.
Business segment information is presented in the following tables. Segment assets presented exclude intercompany assets.
 
Three Months Ended September 30, 2019
 
Electric

 
Gas

 
 
 
Total

 
 
 
 
 
 
 
Utilities and

 
Utilities and

 
Commercial

 
Reportable

 
 
 
 
 
 
(in millions)
Infrastructure

 
Infrastructure

 
Renewables

 
Segments

 
Other

 
Eliminations

 
Total

Unaffiliated revenues
$
6,569

 
$
225

 
$
138

 
$
6,932

 
$
8

 
$
—

 
$
6,940

Intersegment revenues
8

 
24

 
—

 
32

 
17

 
(49
)
 
—

Total revenues
$
6,577

 
$
249

 
$
138

 
$
6,964

 
$
25

 
$
(49
)
 
$
6,940

Segment income (loss)(a)
$
1,385

 
$
26

 
$
40

 
$
1,451

 
$
(124
)
 
$
—

 
$
1,327

Add back noncontrolling interests(b)
 
 
 
 
 
 
 
 
 
 
 
 
(19
)
Add back preferred stock dividend
 
 
 
 
 
 
 
 
 
 
 
 
15

Net income
 
 
 
 
 
 
 
 
 
 
 
 
$
1,323

Segment assets
$
133,296

 
$
13,424

 
$
5,278

 
$
151,998

 
$
3,734

 
$
185

 
$
155,917


 
Three Months Ended September 30, 2018
 
Electric

 
Gas

 
 
 
Total

 
 
 
 
 
 
 
Utilities and

 
Utilities and

 
Commercial

 
Reportable

 
 
 
 
 
 
(in millions)
Infrastructure

 
Infrastructure

 
Renewables

 
Segments

 
Other

 
Eliminations

 
Total

Unaffiliated revenues
$
6,253

 
$
232

 
$
127

 
$
6,612

 
$
16

 
$
—

 
$
6,628

Intersegment revenues
7

 
24

 
—

 
31

 
18

 
(49
)
 
—

Total revenues
$
6,260

 
$
256

 
$
127

 
$
6,643

 
$
34

 
$
(49
)
 
$
6,628

Segment income (loss)(c)(d)(e)
$
1,167

 
$
17

 
$
(62
)
 
$
1,122

 
$
(44
)
 
$
—

 
$
1,078

Add back noncontrolling interests
 
 
 
 
 
 
 
 
 
 
 
 
(16
)
Loss from discontinued operations, net of tax
 
 
 
 
 
 
 
 
 
 
 
 
4

Net income
 
 
 
 
 
 
 
 
 
 
 
 
$
1,066


 
Nine Months Ended September 30, 2019
 
Electric

 
Gas

 
 
 
Total

 
 
 
 
 
 
 
Utilities and

 
Utilities and

 
Commercial

 
Reportable

 
 
 
 
 
 
(in millions)
Infrastructure

 
Infrastructure

 
Renewables

 
Segments

 
Other

 
Eliminations

 
Total

Unaffiliated revenues
$
17,357

 
$
1,239

 
$
362

 
$
18,958

 
$
18

 
$
—

 
$
18,976

Intersegment revenues
24

 
72

 
—

 
96

 
53

 
(149
)
 
—

Total revenues
$
17,381

 
$
1,311

 
$
362

 
$
19,054

 
$
71

 
$
(149
)
 
$
18,976

Segment income (loss)(a)
$
2,944

 
$
292

 
$
139

 
$
3,375

 
$
(328
)
 
$
—

 
$
3,047

Add back noncontrolling interests(b)
 
 
 
 
 
 
 
 
 
 
 
 
(110
)
Add back preferred stock dividend
 
 
 
 
 
 
 
 
 
 
 
 
27

Net income
 
 
 
 
 
 
 
 
 
 
 
 
$
2,964

 
Nine Months Ended September 30, 2018
 
Electric

 
Gas

 
 
 
Total

 
 
 
 
 
 
 
Utilities and

 
Utilities and

 
Commercial

 
Reportable

 
 
 
 
 
 
(in millions)
Infrastructure

 
Infrastructure

 
Renewables

 
Segments

 
Other

 
Eliminations

 
Total

Unaffiliated revenues
$
16,783

 
$
1,229

 
$
347

 
$
18,359

 
$
47

 
$
—

 
$
18,406

Intersegment revenues
23

 
72

 
—

 
95

 
54

 
(149
)
 
—

Total revenues
$
16,806

 
$
1,301

 
$
347

 
$
18,454

 
$
101

 
$
(149
)
 
$
18,406

Segment income (loss)(c)(d)(e)(f)(g)(h)
$
2,492

 
$
161

 
$
(4
)
 
$
2,649

 
$
(446
)
 
$
—

 
$
2,203

Add back noncontrolling interests
 
 
 
 
 
 
 
 
 
 
 
 
(12
)
Loss from discontinued operations, net of tax
 
 
 
 
 
 
 
 
 
 
 
 
(1
)
Net income
 
 
 
 
 
 
 
 
 
 
 
 
$
2,190

(a)
Electric Utilities and Infrastructure includes a reduction of a prior year impairment at Citrus County CC related to the plant's cost cap. See Note 3 for additional information.
(b)
Includes the allocation of losses to noncontrolling tax equity members. See Note 1 for additional information.
(c)
All segments include adjustments of prior year tax estimates related to the Tax Act.
(d)
Commercial Renewables includes an impairment charge related to goodwill.
(e)
Other includes costs to achieve the Piedmont acquisition.
(f)
Electric Utilities and Infrastructure includes regulatory and legislative charges related to rate case orders, settlements or other actions of regulators or legislative bodies. See Note 3 for additional information.
(g)
Gas Utilities and Infrastructure includes an impairment of the investment in Constitution. See Note 3 for additional information.
(h)
Other includes the loss on the sale of Beckjord described below and a valuation allowance recorded against the AMT credits.
In February 2018, Duke Energy sold Beckjord, a nonregulated facility retired during 2014, and recorded a pretax loss of $106 million within Gains (Losses) on Sales of Other Assets and Other, net and $1 million within Operation, maintenance and other on Duke Energy's Condensed Consolidated Statements of Operations for the nine months ended September 30, 2018. The sale included the transfer of coal ash basins and other real property and indemnification from any and all potential future claims related to the property, whether arising under environmental laws or otherwise.
Duke Energy Ohio
Duke Energy Ohio has two reportable segments, Electric Utilities and Infrastructure and Gas Utilities and Infrastructure. The remainder of Duke Energy Ohio's operations is presented as Other.
 
Three Months Ended September 30, 2019
 
Electric

 
Gas

 
Total

 
 
 
 
 
 
 
Utilities and

 
Utilities and

 
Reportable

 
 
 
 
 
 
(in millions)
Infrastructure

 
Infrastructure

 
Segments

 
Other

 
Eliminations

 
Total

Total revenues
$
408

 
$
81

 
$
489

 
$
—

 
$
—

 
$
489

Segment income/Net (loss) income
$
62

 
$
13

 
$
75

 
$
(1
)
 
$
—

 
$
74

Segment assets
$
6,107

 
$
3,049

 
$
9,156

 
$
30

 
$
(3
)
 
$
9,183

 
Three Months Ended September 30, 2018
 
Electric

 
Gas

 
Total

 
 
 
 
 
Utilities and

 
Utilities and

 
Reportable

 
 
 
 
(in millions)
Infrastructure

 
Infrastructure

 
Segments

 
Other

 
Total

Total revenues
$
373

 
$
84

 
$
457

 
$
12

 
$
469

Segment income/Net income
$
85

 
$
12

 
$
97

 
$
3

 
$
100


 
Nine Months Ended September 30, 2019
 
Electric

 
Gas

 
Total

 
 
 
 
 
Utilities and

 
Utilities and

 
Reportable

 
 
 
 
(in millions)
Infrastructure

 
Infrastructure

 
Segments

 
Other

 
Total

Total revenues
$
1,099

 
$
354

 
$
1,453

 
$
—

 
$
1,453

Segment income/Net (loss) income
$
129

 
$
65

 
$
194

 
$
(4
)
 
$
190

 
Nine Months Ended September 30, 2018
 
Electric

 
Gas

 
Total

 
 
 
 
 
Utilities and

 
Utilities and

 
Reportable

 
 
 
 
(in millions)
Infrastructure

 
Infrastructure

 
Segments

 
Other

 
Total

Total revenues
$
1,055

 
$
361

 
$
1,416

 
$
36

 
$
1,452

Segment income/Net (loss) income(a)
$
157

 
$
64

 
$
221

 
$
(100
)
 
$
121

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