XML 62 R1.htm IDEA: XBRL DOCUMENT v3.3.1.900
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2015
Jan. 31, 2016
Jun. 30, 2015
Document Information [Line Items]      
Document Type 10-K    
Document Period End Date Dec. 31, 2015    
Amendment Flag false    
Entity Registrant Name Duke Energy Corporation    
Entity Central Index Key 0001326160    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Large Accelerated Filer    
Entity Well-known Seasoned Issuer Yes    
Entity Common Stock, Shares Outstanding   688,377,923  
Entity Public Float     $ 48,570,203,631
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY    
Duke Energy Carolinas [Member]      
Document Information [Line Items]      
Entity Registrant Name Duke Energy Carolinas, LLC    
Entity Central Index Key 0000030371    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer Yes    
Progress Energy [Member]      
Document Information [Line Items]      
Entity Registrant Name Progress Energy, Inc.    
Entity Central Index Key 0001094093    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Duke Energy Progress [Member]      
Document Information [Line Items]      
Entity Registrant Name Duke Energy Progress, Inc.    
Entity Central Index Key 0000017797    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer Yes    
Duke Energy Florida [Member]      
Document Information [Line Items]      
Entity Registrant Name Duke Energy Florida, Inc.    
Entity Central Index Key 0000037637    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer Yes    
Duke Energy Ohio [Member]      
Document Information [Line Items]      
Entity Registrant Name Duke Energy Ohio, Inc.    
Entity Central Index Key 0000020290    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Duke Energy Indiana [Member]      
Document Information [Line Items]      
Entity Registrant Name Duke Energy Indiana, Inc.    
Entity Central Index Key 0000081020    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No