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Document Entity Information Document (USD $)
9 Months Ended
Sep. 30, 2011
Jun. 30, 2010
Entity Information [Line Items]  
Entity Registrant NameNEXTERA ENERGY INC 
Entity Central Index Key0000753308 
Current Fiscal Year End Date--12-31 
Entity Well-known Seasoned IssuerYes 
Entity Voluntary FilersNo 
Entity Current Reporting StatusYes 
Entity Filer CategoryLarge Accelerated Filer 
Entity Public Float $ 20,203,956,578
Entity Common Stock, Shares Outstanding422,536,194 
Document Fiscal Year Focus2011 
Document Fiscal Period FocusQ3 
Document Type10-Q 
Amendment Flagfalse 
Document Period End DateSep. 30, 2011 
FLORIDA POWER & LIGHT COMPANY
  
Entity Information [Line Items]  
Entity Registrant NameFLORIDA POWER & LIGHT CO 
Entity Central Index Key0000037634 
Current Fiscal Year End Date--12-31 
Entity Well-known Seasoned IssuerYes 
Entity Voluntary FilersNo 
Entity Current Reporting StatusYes 
Entity Filer CategoryNon-accelerated Filer 
Entity Common Stock, Shares Outstanding1,000