Commitments and Contingencies (Planned Capital Expenditures) (Details) $ in Millions	3 Months Ended
Mar. 31, 2020 USD ($) MW
FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 4,875
2021	6,595
2022	6,340
2023	6,630
2024	6,610
Total	31,050
Gulf Power [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	620
2021	810
2022	645
2023	650
2024	680
Total	3,405
NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	4,925
2021	1,805
2022	295
2023	195
2024	265
Total	7,485
New Generation Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	980
2021	885
2022	550
2023	490
2024	710
Total	3,615
Existing Generation Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	750
2021	950
2022	1,075
2023	1,155
2024	885
Total	4,815
Transmission And Distribution Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	2,450
2021	4,040
2022	4,110
2023	4,450
2024	4,450
Total	19,500
Allowance for funds used during construction (AFUDC) - remainder of 2020	30
Allowance for funds used during construction (AFUDC) - 2021	55
Allowance for funds used during construction (AFUDC) - 2022	55
Allowance for funds used during construction (AFUDC) - 2023	40
Allowance for funds used during construction (AFUDC) - 2024	35
Nuclear Fuel Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	135
2021	220
2022	165
2023	120
2024	145
Total	785
General And Other Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	560
2021	500
2022	440
2023	415
2024	420
Total	2,335
Wind Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	2,580
2021	180
2022	10
2023	10
2024	10
Total	$ 2,790
Planned new generation over 5 year period (in megawatts) \| MW	4,215
Solar Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 855
2021	485
2022	0
2023	5
2024	0
Total	$ 1,345
Planned new generation over 5 year period (in megawatts) \| MW	1,580
Battery Storage Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 85
2021	455
2022	0
2023	0
2024	0
Total	540
Nuclear Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	95
2021	210
2022	165
2023	120
2024	180
Total	770
Pipelines [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	525
2021	280
2022	25
2023	0
2024	0
Total	830
Rate-Regulated Transmission [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	235
2021	140
2022	30
2023	10
2024	15
Total	430
Other Expenditures [Member] \| NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	550
2021	55
2022	65
2023	50
2024	60
Total	780
Generation Expenditures [Member] \| FPL [Member]
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - remainder of 2020	25
Allowance for funds used during construction (AFUDC) - 2021	70
Allowance for funds used during construction (AFUDC) - 2022	40
Allowance for funds used during construction (AFUDC) - 2023	20
Allowance for funds used during construction (AFUDC) - 2024	$ 30

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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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Estimated AFUDC related to Generation 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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