For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
Revenue Recognition (Details) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 5,400	$ 5,700
Florida Power & Light Company
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,800	$ 3,900
Unbilled revenues	621		$ 633
Revenue, remaining performance obligation	375
NEER Segment
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation	$ 1,200
Revenue Benchmark [Member] \| Florida Power & Light Company \| Customer Concentration Risk \| Retail Customers
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	90.00%