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Income Taxes (Details) $ in Millions	Jan. 31, 2023 USD ($)
Subsequent Event
Operating Loss and Tax Credit Carryforwards [Line Items]
Revenue not recognized	$ 36

X

- Definition

Operating Loss and Tax Credit Carryforwards [Line Items]

+ References

No definition available.

+ Details

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Namespace Prefix:	nee_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 55
-Paragraph 27
-URI https://asc.fasb.org/extlink&oid=126920602&loc=SL49130611-203046-203046

+ Details

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

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- Details

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Namespace Prefix:
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Balance Type:
Period Type: