Equity Method Investments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) investment mi	Dec. 31, 2024 USD ($) investment	Dec. 31, 2023 USD ($)	Mar. 31, 2025 USD ($)	Sep. 30, 2023 USD ($)
Equity method investment, financial statement, reported amounts [Abstract]
Number Of Equity Method Investments | investment	60	53
NextEra Energy Resources' ownership interest, low range (in hundredths)	52.50%	33.40%
NextEra Energy Resources' ownership interest, high range (in hundredths)	52.60%	33.30%
Equity method investment, summarized financial information [Abstract]
Operating revenue	$ 27,412.0	$ 24,753.0	$ 28,114.0
Operating income	8,280.0	7,479.0	10,237.0
Total assets	212,721.0	190,144.0	177,489.0
Total liabilities	146,242.0	129,283.0
Investment in equity method investees	5,528.0	6,118.0	6,156.0
Other	11,104.0	9,459.0
Guarantor Obligations, Current Carrying Value	$ 815.0
Natural Gas Pipeline System, Distance | mi	303
XPLR [Member]
Equity method investment, summarized financial information [Abstract]
Related Party Services	$ 928.0	749.0	656.0
XPLR [Member] | Cash Sweep And Credit Support Agreement
Equity method investment, summarized financial information [Abstract]
Other	183.0	128.0
Other Receivables	498.0	159.0
Equity Method Investment, Nonconsolidated Investee, Other
Equity method investment, summarized financial information [Abstract]
Operating revenue	1,753.0	1,513.0
Operating income	84.0	(325.0)
Net loss	(194.0)	(82.0)
Total assets	29,235.0	30,144.0
Total liabilities	8,726.0	7,501.0
Partners'/members' equity	20,509.0	22,643.0
NEER
Equity method investment, summarized financial information [Abstract]
NEE's share of underlying equity in the principal entities	3,997.0	4,727.0
Difference between investment carrying amount and underlying equity in net assets	(1,874.0)	(1,889.0)
Investment in equity method investees	2,123.0	2,838.0
XPLR | XPLR [Member] | Service Agreement
Equity method investment, summarized financial information [Abstract]
Reimbursements, Interest and Fee Income, Other Loans	1,387.0	255.0	$ 141.0
XPLR
Equity method investment, summarized financial information [Abstract]
Guarantor Obligations, Current Carrying Value	1,800.0
Guarantees, Fair Value Disclosure	58.0
XPLR | NEER
Equity method investment, summarized financial information [Abstract]
Investment in equity method investees		2,600.0		$ 1,700.0	$ 4,200.0
Mountain Valley Pipeline [Member]
Equity method investment, summarized financial information [Abstract]
Difference between investment carrying amount and underlying equity in net assets	(2,100.0)	(2,200.0)
Investment in equity method investees	$ 1,100.0	1,000.0
Equity Method Investment, Amortization Period	40 years
XPLR
Equity method investment, summarized financial information [Abstract]
Investment in equity method investees	$ 1,000.0	$ 1,800.0