Commitments and Contingencies (Planned Capital Expenditures) (Details) $ in Millions	9 Months Ended
Sep. 30, 2020 USD ($) MW
FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 2,030
2021	6,895
2022	6,655
2023	6,470
2024	6,725
Total	28,775
Gulf Power [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	260
2021	860
2022	695
2023	625
2024	685
Total	3,125
NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	1,985
2021	4,420
2022	940
2023	615
2024	305
Total	8,265
New Generation Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	375
2021	860
2022	900
2023	680
2024	540
Total	3,355
Existing Generation Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	460
2021	1,055
2022	1,140
2023	1,035
2024	1,020
Total	4,710
Transmission And Distribution Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	860
2021	4,020
2022	3,665
2023	3,825
2024	4,290
Total	16,660
Allowance for funds used during construction (AFUDC) - remainder of 2020	10
Allowance for funds used during construction (AFUDC) - 2021	50
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
Nuclear Fuel Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	85
2021	220
2022	170
2023	120
2024	145
Total	740
General And Other Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	250
2021	740
2022	780
2023	810
2024	730
Total	3,310
Wind Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	785
2021	1,605
2022	30
2023	20
2024	25
Total	$ 2,465
Planned new generation over 5 year period (in megawatts) \| MW	4,784
Solar Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 430
2021	1,520
2022	565
2023	375
2024	0
Total	$ 2,890
Planned new generation over 5 year period (in megawatts) \| MW	2,977
Battery Storage Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 250
2021	275
2022	60
2023	0
2024	0
Total	585
Nuclear Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	60
2021	230
2022	185
2023	140
2024	190
Total	805
Pipelines [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	195
2021	410
2022	0
2023	0
2024	0
Total	605
Rate-Regulated Transmission [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	85
2021	220
2022	30
2023	10
2024	15
Total	360
Other Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	180
2021	160
2022	70
2023	70
2024	75
Total	555
Generation Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - remainder of 2020	10
Allowance for funds used during construction (AFUDC) - 2021	60
Allowance for funds used during construction (AFUDC) - 2022	50
Allowance for funds used during construction (AFUDC) - 2023	25
Allowance for funds used during construction (AFUDC) - 2024	$ 20

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

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Estimated AFUDC related to Generation for the remainder of the current year

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Estimated AFUDC related to Generation for the remainder of the second 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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