Commitments and Contingencies (Planned Capital Expenditures) (Details) - Jun. 30, 2015 $ in Millions	USD ($) MW
Corporate and Other [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	$ 300
2016	1,130
2017	920
2018	505
2019	160
Total	3,015
FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	2,100
2016	3,840
2017	2,805
2018	2,495
2019	2,425
Total	13,665
NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	2,350
2016	1,780
2017	320
2018	350
2019	345
Total	5,145
New Generation Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	320
2016	900
2017	50
2018	0
2019	0
Total	1,270
Existing Generation Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	430
2016	555
2017	660
2018	560
2019	440
Total	2,645
Transmission And Distribution Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	950
2016	1,960
2017	1,755
2018	1,625
2019	1,680
Total	7,970
Nuclear Fuel Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	135
2016	220
2017	125
2018	150
2019	175
Total	805
General And Other Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	265
2016	205
2017	215
2018	160
2019	130
Total	975
Wind Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	1,105
2016	855
2017	45
2018	10
2019	10
Total	$ 2,025
Planned new generation over 5 year period (in megawatts) | MW	1,655
Solar Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	$ 900
2016	575
2017	0
2018	0
2019	0
Total	$ 1,475
Planned new generation over 5 year period (in megawatts) | MW	830
Nuclear Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	$ 155
2016	285
2017	225
2018	245
2019	270
Total	1,180
Other Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder Current Year	190
2016	65
2017	50
2018	95
2019	65
Total	465
Generation Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - remainder of 2015	48
Allowance for funds used during construction (AFUDC) - 2016	71
Allowance for funds used during construction (AFUDC) - 2017	$ 8