XML 49 R33.htm IDEA: XBRL DOCUMENT v3.22.1
Revenue Recognition (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers $ 5,000 $ 4,000  
Florida Power & Light Company      
Disaggregation of Revenue [Line Items]      
Revenue from contracts with customers 3,700 3,000  
Unbilled revenues 573   $ 583
Revenue, remaining performance obligation 385    
NextEra Energy Resources      
Disaggregation of Revenue [Line Items]      
Unrecognized revenue   $ 180  
Revenue, remaining performance obligation $ 1,300    
Revenue Benchmark [Member] | Florida Power & Light Company | Customer Concentration Risk | Retail Customers      
Disaggregation of Revenue [Line Items]      
Concentration risk, percentage 90.00%