Debt - Narrative (Details) - USD ($) $ in Billions	1 Months Ended
	Sep. 30, 2023	Mar. 31, 2023	Aug. 31, 2023
NEE Equity Units February 2020 [Member]
Debt Instrument [Line Items]
Sale of stock, shares issued in transaction (in shares)		33,380,000
Sale of stock, consideration received		$ 2.5
NEE Equity Units September 2020
Debt Instrument [Line Items]
Sale of stock, shares issued in transaction (in shares)	27,344,000
Sale of stock, consideration received	$ 2.0
Series K Debentures due 2025 | Debentures | NextEra Energy Capital Holdings, Inc.
Debt Instrument [Line Items]
Principal amount		$ 2.5
Interest Rate (as a percent)		6.051%
Series L Debenture due 2025 | Debentures | NextEra Energy Capital Holdings, Inc.
Debt Instrument [Line Items]
Principal amount			$ 2.0
Interest Rate (as a percent)			5.749%