Debt - Narrative (Details) $ in Millions	Jun. 30, 2022 USD ($)
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 20,900
Letters of Credit Outstanding, Amount	4,600
Florida Power & Light Company
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity	6,000
Letters of Credit Outstanding, Amount	$ 3

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant