Debt - Narrative (Details) - USD ($)		1 Months Ended
	Sep. 01, 2022	Sep. 30, 2022	Aug. 31, 2022
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity		$ 18,500,000,000
Letters of Credit Outstanding, Amount		(4,100,000,000)
Borrowings outstanding		$ 0
September 2019 Equity Units
Debt Instrument [Line Items]
Sale of stock, shares issued in transaction (in shares)	21,600,000
Sale of stock, consideration received	$ 1,500,000,000
NEE Equity Units September 2022
Debt Instrument [Line Items]
Interest rate (as a percent)		4.60%
Amount of equity units sold		$ 2,000,000,000
Stated amount of each equity unit (in dollars per share)		$ 50
Undivided beneficial ownership interest per debenture (in hundredths)		5.00%
Principal amount of each debenture		$ 1,000
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares)		0.5626
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares)		0.4500
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock		20 days
Rate of total annual distributions on equity units (in thousandths)		6.926%
Rate of payments on stock purchase contracts (in thousandths)		2.326%
Minimum | NEE Equity Units September 2022
Debt Instrument [Line Items]
Price per share of stock purchase contract (in dollars per share)		$ 88.88
Maximum | NEE Equity Units September 2022
Debt Instrument [Line Items]
Price per share of stock purchase contract (in dollars per share)		$ 111.10
NextEra Energy Capital Holdings, Inc. | Debentures Related To Nextera Energys Equity Units [Member]
Debt Instrument [Line Items]
Principal amount		$ 2,000,000,000
Interest rate (as a percent)		4.60%
NextEra Energy Capital Holdings, Inc. | Series J Debentures due 2024 | Debentures
Debt Instrument [Line Items]
Principal amount			$ 1,500,000,000
Interest rate (as a percent)		4.255%
Florida Power & Light Company
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity		$ 6,000,000,000
Letters of Credit Outstanding, Amount		(3,000,000)
Borrowings outstanding		$ 0