Commitments and Contingencies (Planned Capital Expenditures) (Details) $ in Millions	6 Months Ended
Jun. 30, 2021 USD ($) MW
Planned Capital Expenditures [Line Items]
Guarantor obligations, current carrying value	$ 288
FPL Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	3,770
2022	6,630
2023	6,480
2024	6,710
2025	6,695
Total	30,285
Gulf Power Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	545
2022	695
2023	625
2024	685
2025	685
Total	3,235
NEER Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	4,090
2022	3,730
2023	860
2024	360
2025	325
Total	9,365
New Generation Expenditures [Member] \| FPL Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	490
2022	880
2023	1,030
2024	1,050
2025	760
Total	4,210
Existing Generation Expenditures [Member] \| FPL Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	720
2022	1,155
2023	1,005
2024	945
2025	695
Total	4,520
Transmission And Distribution Expenditures [Member] \| FPL Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	1,990
2022	3,665
2023	3,575
2024	3,925
2025	4,300
Total	17,455
Allowance for funds used during construction (AFUDC) - remainder of 2021	30
Allowance for funds used during construction (AFUDC) - 2022	50
Allowance for funds used during construction (AFUDC) - 2023	40
Allowance for funds used during construction (AFUDC) - 2024	55
Allowance for funds used during construction (AFUDC) - 2025	45
Nuclear Fuel Expenditures [Member] \| FPL Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	115
2022	170
2023	120
2024	145
2025	145
Total	695
General And Other Expenditures [Member] \| FPL Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	455
2022	760
2023	750
2024	645
2025	795
Total	3,405
Wind Expenditures [Member] \| NEER Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	1,845
2022	1,340
2023	35
2024	40
2025	30
Total	$ 3,290
Planned new generation over 5 year period (in megawatts) \| MW	4,043
Solar Expenditures [Member] \| NEER Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	$ 1,215
2022	1,550
2023	505
2024	15
2025	20
Total	$ 3,305
Planned new generation over 5 year period (in megawatts) \| MW	4,782
Battery Storage Expenditures [Member] \| NEER Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	$ 25
2022	0
2023	5
2024	0
2025	0
Total	30
Nuclear Expenditures [Member] \| NEER Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	125
2022	210
2023	145
2024	180
2025	185
Total	845
Pipelines [Member] \| NEER Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	230
2022	230
2023	0
2024	0
2025	0
Total	460
Rate-Regulated Transmission [Member] \| NEER Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	245
2022	270
2023	65
2024	45
2025	25
Total	650
Other Expenditures [Member] \| NEER Segment
Planned Capital Expenditures [Line Items]
Remainder of 2021	405
2022	130
2023	105
2024	80
2025	65
Total	785
Generation Expenditures [Member] \| FPL Segment
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - remainder of 2021	45
Allowance for funds used during construction (AFUDC) - 2022	50
Allowance for funds used during construction (AFUDC) - 2023	35
Allowance for funds used during construction (AFUDC) - 2024	35
Allowance for funds used during construction (AFUDC) - 2025	$ 25

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Estimated planned capital expenditures for the fourth year.

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Estimated planned capital expenditures for the remainder of the current year.

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Estimated planned capital expenditures for the second year.

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Estimated AFUDC for the remainder of the current year

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Estimated AFUDC for the remainder of the second year.

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Estimated AFUDC for the remainder of the third year

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Planned New Generation To Be Added over 5 Years in Megawatts

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Total estimated planned capital expenditures.

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The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248

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