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Cover Page - shares
6 Months Ended
Jun. 30, 2022
Jul. 31, 2022
Entity Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2022  
Document Transition Report false  
Entity File Number 1-32853  
Entity Registrant Name DUKE ENERGY CORPORATION  
Entity Tax Identification Number 20-2777218  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 526 South Church Street  
Entity Address, City or Town Charlotte  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 28202-1803  
City Area Code 704  
Local Phone Number 382-3853  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   769,968,724
Entity Central Index Key 0001326160  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Duke Energy Carolinas    
Entity Information [Line Items]    
Entity File Number 1-4928  
Entity Registrant Name DUKE ENERGY CAROLINAS, LLC  
Entity Tax Identification Number 56-0205520  
Entity Incorporation, State or Country Code NC  
Entity Address, Address Line One 526 South Church Street  
Entity Address, City or Town Charlotte  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 28202-1803  
City Area Code 704  
Local Phone Number 382-3853  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0000030371  
Current Fiscal Year End Date --12-31  
Progress Energy    
Entity Information [Line Items]    
Entity File Number 1-15929  
Entity Registrant Name PROGRESS ENERGY, INC.  
Entity Tax Identification Number 56-2155481  
Entity Incorporation, State or Country Code NC  
Entity Address, Address Line One 410 South Wilmington Street  
Entity Address, City or Town Raleigh  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 27601-1748  
City Area Code 704  
Local Phone Number 382-3853  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0001094093  
Current Fiscal Year End Date --12-31  
Duke Energy Progress    
Entity Information [Line Items]    
Entity File Number 1-3382  
Entity Registrant Name DUKE ENERGY PROGRESS, LLC  
Entity Tax Identification Number 56-0165465  
Entity Incorporation, State or Country Code NC  
Entity Address, Address Line One 410 South Wilmington Street  
Entity Address, City or Town Raleigh  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 27601-1748  
City Area Code 704  
Local Phone Number 382-3853  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0000017797  
Current Fiscal Year End Date --12-31  
Duke Energy Florida    
Entity Information [Line Items]    
Entity File Number 1-3274  
Entity Registrant Name DUKE ENERGY FLORIDA, LLC  
Entity Tax Identification Number 59-0247770  
Entity Incorporation, State or Country Code FL  
Entity Address, Address Line One 299 First Avenue North  
Entity Address, City or Town St. Petersburg  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33701  
City Area Code 704  
Local Phone Number 382-3853  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0000037637  
Current Fiscal Year End Date --12-31  
Duke Energy Ohio    
Entity Information [Line Items]    
Entity File Number 1-1232  
Entity Registrant Name DUKE ENERGY OHIO, INC.  
Entity Tax Identification Number 31-0240030  
Entity Incorporation, State or Country Code OH  
Entity Address, Address Line One 139 East Fourth Street  
Entity Address, City or Town Cincinnati  
Entity Address, State or Province OH  
Entity Address, Postal Zip Code 45202  
City Area Code 704  
Local Phone Number 382-3853  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0000020290  
Current Fiscal Year End Date --12-31  
Duke Energy Indiana    
Entity Information [Line Items]    
Entity File Number 1-3543  
Entity Registrant Name DUKE ENERGY INDIANA, LLC  
Entity Tax Identification Number 35-0594457  
Entity Incorporation, State or Country Code IN  
Entity Address, Address Line One 1000 East Main Street  
Entity Address, City or Town Plainfield  
Entity Address, State or Province IN  
Entity Address, Postal Zip Code 46168  
City Area Code 704  
Local Phone Number 382-3853  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0000081020  
Current Fiscal Year End Date --12-31  
Piedmont    
Entity Information [Line Items]    
Entity File Number 1-6196  
Entity Registrant Name PIEDMONT NATURAL GAS COMPANY, INC.  
Entity Tax Identification Number 56-0556998  
Entity Incorporation, State or Country Code NC  
Entity Address, Address Line One 4720 Piedmont Row Drive  
Entity Address, City or Town Charlotte  
Entity Address, State or Province NC  
Entity Address, Postal Zip Code 28210  
City Area Code 704  
Local Phone Number 364-3120  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Central Index Key 0000078460  
Current Fiscal Year End Date --12-31  
Common Stock    
Entity Information [Line Items]    
Title of 12(b) Security Common Stock, $0.001 par value  
Trading Symbol DUK  
Security Exchange Name NYSE  
Junior Subordinated Debentures 5.625% Coupon Due September 2078    
Entity Information [Line Items]    
Title of 12(b) Security 5.625% Junior Subordinated Debentures  
Trading Symbol DUKB  
Security Exchange Name NYSE  
Depositary Share    
Entity Information [Line Items]    
Title of 12(b) Security Depositary Shares  
Trading Symbol DUK PR A  
Security Exchange Name NYSE  
Senior Notes 3.10% Due 2028    
Entity Information [Line Items]    
Title of 12(b) Security 3.10% Senior Notes  
Trading Symbol DUK 28A  
Security Exchange Name NYSE  
Senior Notes 3.85% Due 2034    
Entity Information [Line Items]    
Title of 12(b) Security 3.85% Senior Notes  
Trading Symbol DUK 34  
Security Exchange Name NYSE