XML 156 R1.htm IDEA: XBRL DOCUMENT v3.2.0.727
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2015
Aug. 04, 2015
Document Information [Line Items]    
Entity Registrant Name Duke Energy Corporation  
Entity Central Index Key 0001326160  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 30, 2015  
Document Fiscal Year Focus 2015  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   688,330,456
Duke Energy Carolinas [Member]    
Document Information [Line Items]    
Entity Registrant Name Duke Energy Carolinas, LLC  
Entity Central Index Key 0000030371  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Progress Energy [Member]    
Document Information [Line Items]    
Entity Registrant Name Progress Energy, Inc  
Entity Central Index Key 0001094093  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Duke Energy Progress [Member]    
Document Information [Line Items]    
Entity Registrant Name Duke Energy Progress, LLC  
Entity Central Index Key 0000017797  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Duke Energy Florida [Member]    
Document Information [Line Items]    
Entity Registrant Name Duke Energy Florida, LLC  
Entity Central Index Key 0000037637  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Duke Energy Ohio [Member]    
Document Information [Line Items]    
Entity Registrant Name Duke Energy Ohio, Inc.  
Entity Central Index Key 0000020290  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Duke Energy Indiana [Member]    
Document Information [Line Items]    
Entity Registrant Name Duke Energy Indiana, Inc.  
Entity Central Index Key 0000081020  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer