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Business Segments
 6 Months Ended
Jun. 30, 2021
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, midstream pipeline and renewable natural gas investments.
The Commercial Renewables segment is primarily comprised of nonregulated utility-scale wind and solar generation assets located throughout the U.S. In 2021, Duke Energy continues to monitor recoverability of its renewable merchant plants located in the Electric Reliability Council of Texas West market and in the PJM West market due to declining market pricing and declining long-term forecasted energy prices. The assets were not impaired as of June 30, 2021, because the carrying value of approximately $208 million continues to approximate the aggregate estimated future undiscounted cash flows. Duke Energy has a 50% ownership interest in these assets. 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 ownership interest in National Methanol Company.
Business segment information is presented in the following tables. Segment assets presented exclude intercompany assets.
Three Months Ended June 30, 2021
ElectricGasTotal
Utilities andUtilities andCommercialReportable
(in millions)InfrastructureInfrastructureRenewablesSegmentsOtherEliminationsTotal
Unaffiliated revenues$5,328 $305 $119 $5,752 $6 $— $5,758 
Intersegment revenues7 22 — 29 21 (50)— 
Total revenues$5,335 $327 $119 $5,781 $27 $(50)$5,758 
Segment income (loss)(a)
$935 $17 $47 $999 $(248)$— $751 
Less: Noncontrolling interests67 
Add: Preferred stock dividend14 
Net Income$698 
Segment assets$140,591 $14,321 $6,956 $161,868 $3,524 $(7)$165,385 
Three Months Ended June 30, 2020
ElectricGasTotal
Utilities andUtilities andCommercialReportable
(in millions)InfrastructureInfrastructureRenewablesSegmentsOtherEliminationsTotal
Unaffiliated revenues$5,026 $265 $123 $5,414 $7 $— $5,421 
Intersegment revenues8 24 — 32 19 (51)— 
Total revenues$5,034 $289 $123 $5,446 $26 $(51)$5,421 
Segment income (loss)(b)
$753 $(1,576)$90 $(733)$(84)$— $(817)
Less: Noncontrolling interests90 
Add: Preferred stock dividend15 
Net Income$(892)
(a)    Gas Utilities and Infrastructure includes $16 million, recorded within Equity in earnings (losses) of unconsolidated affiliates on the Condensed Consolidated Statements of Operations, related to gas pipeline investments. See Note 3 for additional information. Other includes $131 million recorded within Impairment of assets and other charges, $27 million within Operations, maintenance and other, and $17 million within Depreciation and amortization on the Condensed Consolidated Statements of Operations, related to the workplace and workforce realignment. See Note 1 for additional information.
(b)    Gas Utilities and Infrastructure includes $2 billion recorded within Equity in earnings (losses) of unconsolidated affiliates on the Condensed Consolidated Statements of Operations, related to gas pipeline investments. See Note 3 for additional information.
Six Months Ended June 30, 2021
ElectricGasTotal
Utilities andUtilities andCommercialReportable
(in millions)InfrastructureInfrastructureRenewablesSegmentsOtherEliminationsTotal
Unaffiliated revenues$10,601 $1,057 $238 $11,896 $12 $— $11,908 
Intersegment revenues15 45 — 60 41 (101)— 
Total revenues$10,616 $1,102 $238 $11,956 $53 $(101)$11,908 
Segment income (loss)(a)
$1,755 $262 $74 $2,091 $(387)$— $1,704 
Less: Noncontrolling interests118 
Add: Preferred stock dividend53 
Net Income$1,639 
Six Months Ended June 30, 2020
ElectricGasTotal
Utilities andUtilities andCommercialReportable
(in millions)InfrastructureInfrastructureRenewablesSegmentsOtherEliminationsTotal
Unaffiliated revenues$10,200 $905 $252 $11,357 $13 $— $11,370 
Intersegment revenues17 48 — 65 36 (101)— 
Total revenues$10,217 $953 $252 $11,422 $49 $(101)$11,370 
Segment income (loss)(b)
$1,458 $(1,327)$147 $278 $(196)$— $82 
Less: Noncontrolling interests138 
Add: Preferred stock dividend54 
Net Income$(2)
(a)    Gas Utilities and Infrastructure includes $22 million, recorded within Equity in earnings (losses) of unconsolidated affiliates on the Condensed Consolidated Statements of Operations, related to gas pipeline investments. See Note 3 for additional information. Commercial Renewables includes a $35 million loss related to Texas Storm Uri, of which ($8 million) is recorded within Nonregulated electric and other revenues, $2 million within Operations, maintenance and other, $29 million within Equity in earnings (losses) of unconsolidated affiliates and $12 million within Loss Attributable to Noncontrolling Interests on the Condensed Consolidated Statements of Operations. See Note 4 for additional information. Other includes $131 million recorded within Impairment of assets and other charges, $27 million within Operations, maintenance and other, and $17 million within Depreciation and amortization on the Condensed Consolidated Statements of Operations, related to the workplace and workplace realignment. See Note 1 for additional information.
(b)    Gas Utilities and Infrastructure includes $2 billion recorded within Equity in earnings (losses) of unconsolidated affiliates on the Condensed Consolidated Statements of Operations, related to gas pipeline investments. See Note 3 for additional information. Other includes a $98 million reversal, included in Operations, maintenance and other on the Condensed Consolidated Statements of Operations, of 2018 severance costs due to a partial settlement in the Duke Energy Carolinas' 2019 North Carolina rate case. See Note 3 for additional information.
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 June 30, 2021
ElectricGasTotal
Utilities andUtilities andReportable
(in millions)InfrastructureInfrastructureSegmentsOtherEliminationsTotal
Total revenues$343 $113 $456 $— $— $456 
Segment income/Net income$24 $23 $47 $(8)$— $39 
Segment assets$6,645 $3,668 $10,313 $28 $(19)$10,322 
Three Months Ended June 30, 2020
ElectricGasTotal
Utilities andUtilities andReportable
(in millions)InfrastructureInfrastructureSegmentsOtherTotal
Total revenues$330 $93 $423 $— $423 
Segment income/Net income$44 $23 $67 $(1)$66 
Six Months Ended June 30, 2021
ElectricGasTotal
Utilities andUtilities andReportable
(in millions)InfrastructureInfrastructureSegmentsOtherTotal
Total revenues$706 $282 $988 $— $988 
Segment income/Net (loss) income$74 $66 $140 $(10)$130 
Six Months Ended June 30, 2020
ElectricGasTotal
Utilities andUtilities andReportable
(in millions)InfrastructureInfrastructureSegmentsOtherTotal
Total revenues$676 $245 $921 $— $921 
Segment income/Net (loss) income$74 $59 $133 $(2)$131