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Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 23,500	$ 24,800	$ 23,000
FPL [Member]
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	16,900	18,200	$ 17,200
Unbilled revenues	573	$ 633
Revenue, remaining performance obligation	$ 590
FPL [Member] \| Revenue Benchmark [Member] \| Customer Concentration Risk \| Retail Customer
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	90.00%
NEER [Member]
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation	$ 800