Commitments and Contingencies (Planned Capital Expenditures) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($) MW
Corporate and Other [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	$ 110
2017	215
2018	175
2019	190
2020	125
Total	815
FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	1,985
2017	4,050
2018	3,360
2019	3,465
2020	3,280
Total	16,140
NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	2,625
2017	1,175
2018	970
2019	425
2020	350
Total	5,545
New Generation Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	395
2017	645
2018	270
2019	105
2020	10
Total	1,425
Allowance for funds used during construction (AFUDC) - remainder of 2016	39
Allowance for funds used during construction (AFUDC) - 2017	44
Allowance for funds used during construction (AFUDC) - 2018	63
Allowance for funds used during construction (AFUDC) - 2019	27
Existing Generation Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	385
2017	955
2018	675
2019	520
2020	540
Total	3,075
Transmission And Distribution Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	915
2017	2,060
2018	1,985
2019	2,485
2020	2,335
Total	9,780
Nuclear Fuel Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	100
2017	125
2018	190
2019	170
2020	210
Total	795
General And Other Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	190
2017	265
2018	240
2019	185
2020	185
Total	1,065
Wind Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	1,190
2017	50
2018	35
2019	30
2020	30
Total	$ 1,335
Planned new generation over 5 year period (in megawatts) | MW	1,465
Solar Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	$ 305
2017	25
2018	0
2019	0
2020	0
Total	$ 330
Planned new generation over 5 year period (in megawatts) | MW	720
Nuclear Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	$ 175
2017	235
2018	265
2019	255
2020	250
Total	1,180
Pipelines [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	740
2017	820
2018	620
2019	85
2020	25
Total	2,290
Other Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2016	215
2017	45
2018	50
2019	55
2020	45
Total	$ 410