Summary of Significant Accounting and Reporting Policies - Construction Activity (Details) - USD ($) $ in Millions	36 Months Ended
Dec. 31, 2023	Dec. 31, 2022
FPL [Member]
Summary of Significant Accounting Policies [Line Items]
Threshold Of Plant In Service Balance At Which Afudc May Be Recorded	0.40%
NEER [Member]
Summary of Significant Accounting Policies [Line Items]
Project Development Costs	$ 1,500	$ 1,000
Deemed Capital Structure	70.00%

For NextEra Energy Resources, the amount of project development costs capitalized as of the balance sheet date. These costs include land rights and other third-party costs directly associated with the development of a new project. Upon commencement of construction, these costs either are transferred to construction work in progress or remain in other assets, depending upon the nature of the cost. Capitalized development costs are charged to OM expenses when recoverability is no longer probable.

No definition available.

Name:	nee_ProjectDevelopmentCosts
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant