Derivative Instruments (Net Notional Volumes and Additional Disclosures) (Details) bbl in Millions, MWh in Millions, MMBTU in Millions, $ in Billions	3 Months Ended	12 Months Ended
	Mar. 31, 2026 USD ($) MWh MMBTU bbl	Dec. 31, 2025 USD ($) MWh MMBTU bbl
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount | $	$ 54.1	$ 47.3
Foreign currency contracts
Derivative [Line Items]
Notional amount | $	$ 9.6	$ 6.0
Short [Member] | Commodity contract - Power [Member]
Derivative [Line Items]
Non-monetary net notional amount (in MWh) | MWh	(250)	(249)
Short [Member] | Commodity contract - Natural gas [Member]
Derivative [Line Items]
Non-monetary net notional amount (in MMBtu) | MMBTU	1,083	1,087
Long [Member] | Commodity contract - Oil [Member]
Derivative [Line Items]
Non-monetary net notional amount (in barrels) | bbl	58	3
Florida Power & Light Company | Short [Member] | Commodity contract - Power [Member]
Derivative [Line Items]
Non-monetary net notional amount (in MWh) | MWh	0	0
Florida Power & Light Company | Short [Member] | Commodity contract - Oil [Member]
Derivative [Line Items]
Non-monetary net notional amount (in barrels) | bbl	0	0
Florida Power & Light Company | Long [Member] | Commodity contract - Natural gas [Member]
Derivative [Line Items]
Non-monetary net notional amount (in MMBtu) | MMBTU	393	378