Commitments and Contingencies (Estimated Planned Capital Expenditures) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014 MW
FPL [Member]
Planned Capital Expenditures [Line Items]
2015	$ 3,435,000,000	[1]
2016	3,450,000,000	[1]
2017	2,745,000,000	[1]
2018	2,435,000,000	[1]
2019	2,425,000,000	[1]
Total	14,490,000,000	[1]
Incremental Capital Expenditures Low Range	800,000,000
Incremental Capital Expenditures High Range	1,100,000,000
FPL [Member] | New Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	395,000,000	[2],[3],[4]
2016	400,000,000	[2],[3],[4]
2017	5,000,000	[2],[3],[4]
2018	5,000,000	[2],[3],[4]
2019	0	[2],[3],[4]
Total	805,000,000	[2],[3],[4]
FPL [Member] | Existing Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	785,000,000	[2]
2016	635,000,000	[2]
2017	640,000,000	[2]
2018	495,000,000	[2]
2019	440,000,000	[2]
Total	2,995,000,000	[2]
FPL [Member] | Transmission and Distribution Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	1,725,000,000
2016	1,965,000,000
2017	1,760,000,000
2018	1,625,000,000
2019	1,680,000,000
Total	8,755,000,000
FPL [Member] | Nuclear Fuel Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	205,000,000
2016	220,000,000
2017	125,000,000
2018	150,000,000
2019	175,000,000
Total	875,000,000
FPL [Member] | General and Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	325,000,000
2016	230,000,000
2017	215,000,000
2018	160,000,000
2019	130,000,000
Total	1,060,000,000
FPL [Member] | Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - 2015	54,000,000
Allowance for funds used during construction (AFUDC) - 2016	17,000,000
NEER [Member]
Planned Capital Expenditures [Line Items]
2015	3,100,000,000
2016	1,185,000,000
2017	305,000,000
2018	375,000,000
2019	390,000,000
Total	5,355,000,000
Planned New Generation To Be Added over 5 Years	1,760
NEER [Member] | Wind Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	1,345,000,000	[5]
2016	275,000,000	[5]
2017	10,000,000	[5]
2018	15,000,000	[5]
2019	10,000,000	[5]
Total	1,655,000,000	[5]
NEER [Member] | Solar Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	1,210,000,000	[5]
2016	555,000,000	[5]
2017	0	[5]
2018	0	[5]
2019	0	[5]
Total	1,765,000,000	[5]
NEER [Member] | Nuclear Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	270,000,000	[5]
2016	295,000,000	[5]
2017	245,000,000	[5]
2018	240,000,000	[5]
2019	280,000,000	[5]
Total	1,330,000,000	[5]
NEER [Member] | Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2015	275,000,000	[5]
2016	60,000,000	[5]
2017	50,000,000	[5]
2018	120,000,000	[5]
2019	100,000,000	[5]
Total	605,000,000	[5]
Corporate and Other [Member]
Planned Capital Expenditures [Line Items]
2015	510,000,000	[6]
2016	1,200,000,000	[6]
2017	695,000,000	[6]
2018	455,000,000	[6]
2019	145,000,000	[6]
Total	3,005,000,000	[6]
Corporate and Other [Member] | Natural Gas Expenditures [Member]
Planned Capital Expenditures [Line Items]
Planned capital expenditures	2,500,000,000
Equity Method Investment in Natural Gas Pipeline, next five years	2,000,000,000
Planned capital expenditures - new natural gas pipeline	515,000,000
Planned Capital Expenditures AFDUC, 2015	3,000,000
Planned Capital Expenditures AFDUC, 2016	17,000,000
Planned Capital Expenditures AFDUC, 2017	$ 11,000,000

[1] FPL has identified $800 million to $1.1 billion in potential incremental capital expenditures through 2016 in addition to what is included in the table above.

[2] Includes AFUDC of approximately $54 million and $17 million for 2015 and 2016, respectively.

[3] Includes land, generating structures, transmission interconnection and integration and licensing.

[4] Consists of projects that have received FPSC approval or applicable internal approvals. Excludes capital expenditures for the construction costs for the two additional nuclear units at FPL's Turkey Point site beyond what is required to receive an NRC license for each unit.

[5] Consists of capital expenditures for new wind and solar projects and related transmission totaling approximately 1,760 MW and gas infrastructure investments that have received applicable internal approvals. Excludes new wind and solar projects in advanced development requiring internal approvals.

[6] Includes capital expenditures totaling approximately $2.5 billion for construction of three natural gas pipelines that have received applicable internal approvals, including $2.0 billion of equity contributions associated with equity investments in joint ventures for two pipelines and $515 million, which includes AFUDC of approximately $3 million, $17 million, and $11 million for 2015 through 2017, respectively, associated with the third pipeline. The natural gas pipelines are subject to certain conditions, including FERC approval. See Contracts below.