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Derivative Instruments (Credit Risk Disclosures) (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Liability position of derivative	$ 4,700,000,000	$ 7,400,000,000
Additional Collateral Aggregate Fair Value Due To Credit Rating Downgrade To Bbb Or Baa2	510,000,000	1,625,000,000
Additional Collateral Aggregate Fair Value Due To Credit Rating Downgrade To Below Investment Grade	2,400,000,000	5,200,000,000
Additional Collateral Aggregate Fair Value Due To Other Financial Measures	1,700,000,000	1,100,000,000
Collateral Already Posted, Aggregate Fair Value	691,000,000	1,813,000,000
Letters Of Credit Already Posted Aggregate Fair Value	1,595,000,000	2,806,000,000
FPL [Member]
Derivative [Line Items]
Liability position of derivative	14,000,000	15,000,000
Additional Collateral Aggregate Fair Value Due To Credit Rating Downgrade To Bbb Or Baa2	0	0
Additional Collateral Aggregate Fair Value Due To Credit Rating Downgrade To Below Investment Grade	15,000,000	20,000,000
Additional Collateral Aggregate Fair Value Due To Other Financial Measures	50,000,000	185,000,000
Collateral Already Posted, Aggregate Fair Value	0	0
Letters Of Credit Already Posted Aggregate Fair Value	$ 0	$ 0

X

- Definition

The aggregate fair value of collateral that would be required to be posted for derivative instruments with credit-risk-related contingent features if the applicable corporate credit ratings were downgraded to BBB/Baa2 at the end of the reporting period.

+ References

No definition available.

+ Details

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- Definition

The aggregate fair value of collateral that would be required to be posted for derivative instruments with credit-risk-related contingent features if the applicable corporate credit ratings were downgraded to below investment grade at the end of the reporting period.

+ References

No definition available.

+ Details

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- Definition

The aggregate fair value of additional collateral that would be required to be posted for derivative instruments with credit-risk-related contingent features if certain cross-default provisions or certain financial measurement requirements were triggered at the end of the reporting period.

+ References

No definition available.

+ Details

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- Definition

Letters of Credit that are already posted in the normal course of business, at the end of the reporting period, that could be applied toward the collateral requirements for derivative instruments with credit-risk-related contingent features.

+ References

No definition available.

+ Details

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- Definition

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4H

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480237/815-40-50-5

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- Definition

The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4H

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