Commitments and Contingencies (Long-term Purchase Commitment) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
FPL [Member]
Required capacity and/or minimum payments [Abstract]
Remainder of 2020	$ 800
2021	1,010
2022	990
2023	975
2024	970
Thereafter	11,350
Related Party Transaction, Amounts of Transaction	79	$ 79
FPL [Member] \| Sabal Trail and Florida Southeast Connection [Member] \| Natural Gas, Including Transportation And Storage, Contract Minimum Payments [Member]
Required capacity and/or minimum payments [Abstract]
Remainder of 2020	305
2021	415
2022	415
2023	410
2024	410
Thereafter	6,765
NextEra Energy Resources [Member]
Required capacity and/or minimum payments [Abstract]
Remainder of 2020	3,170
2021	585
2022	260
2023	180
2024	185
Thereafter	1,395
Commitment to invest	110
Joint Obligations Remainder Current Year	230
Joint Obligations Second Year	20
Joint Obligations Third Year	20
Joint Obligations Fourth Year	20
Joint Obligations Fifth Year	10
Joint Obligations After Fifth Year	15
NextEra Energy Resources [Member] \| Contract Group 1 [Member]
Long-term Purchase Commitment [Line Items]
Commitment amount included in capital expenditures	4,000
NextEra Energy Resources [Member] \| Mountain Valley Pipeline [Member]
Required capacity and/or minimum payments [Abstract]
2021	70
2022	70
2023	70
2024	70
Thereafter	$ 1,110
Equity method investment, ownership percentage	31.00%
Consolidation, Eliminations [Member] \| FPL [Member]
Required capacity and/or minimum payments [Abstract]
Related Party Transaction, Amounts of Transaction	$ 27	$ 28

Commitment to invest in clean power and technology businesses.

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Commitments included in planned capital expenditures

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Joint obligations of NEECH and NEER included in NEER amounts above due after the fifth year

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Joint obligations of NEECH and NEER included in the NEER amounts above due in the fourth year

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Joint Obligations of NEECH and NEER included in the NEER amounts above due in the remainder of the current year

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Joint Obligations of NEECH and NEER included in the NEER amounts above due in the second year

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Joint obligations of NEECH and NEER included in NEER amounts above due in the third year

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Required Capacity And Or Minimum Payments Abstract

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Estimated required capacity and/or minimum payments after the fifth year.

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Estimated required capacity and/or minimum payments for the fifth year.

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Estimated required capacity and/or minimum payments for the fourth year.

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Estimated required capacity and/or minimum payments for the remainder of the current year.

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Estimated required capacity and/or minimum payments for the second year.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
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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.

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Amount of transactions with related party during the financial reporting period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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