Commitments and Contingencies, Planned Capital Expenditures (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012 MW
FPL [Member]
Planned Capital Expenditures [Line Items]
2012	$ 1,020
2013	2,420
2014	2,440
2015	1,830
2016	1,595
Total	9,305
FPL [Member] | New Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	500	[1],[2],[3]
2013	770	[1],[2],[3]
2014	770	[1],[2],[3]
2015	295	[1],[2],[3]
2016	120	[1],[2],[3]
Total	2,455	[1],[2],[3]
Pre-construction costs and carrying charges (equal to a pretax AFUDC rate) - 2012	24
Pre-construction costs and carrying charges (equal to a pretax AFUDC rate) - 2013	42
Pre-construction costs and carrying charges (equal to a pretax AFUDC rate) - 2014	12
FPL [Member] | Existing Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	190	[1]
2013	645	[1]
2014	655	[1]
2015	550	[1]
2016	440	[1]
Total	2,480	[1]
FPL [Member] | Transmission And Distribution Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	215
2013	690
2014	690
2015	660
2016	705
Total	2,960
FPL [Member] | Nuclear Fuel Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	70
2013	125
2014	205
2015	245
2016	245
Total	890
FPL [Member] | General And Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	45
2013	190
2014	120
2015	80
2016	85
Total	520
FPL [Member] | Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - 2012	24
Allowance for funds used during construction (AFUDC) - 2013	82
Allowance for funds used during construction (AFUDC) - 2014	53
Allowance for funds used during construction (AFUDC) - 2015	48
Allowance for funds used during construction (AFUDC) - 2016	27
NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
2012	1,310
2013	1,470
2014	585
2015	430
2016	390
Total	4,185
NextEra Energy Resources [Member] | Nuclear Fuel Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	95	[4]
2013	315	[4]
2014	280	[4]
2015	285	[4]
2016	325	[4]
Total	1,300	[4]
NextEra Energy Resources [Member] | Wind Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	740	[5]
2013	285	[5]
2014	25	[5]
2015	5	[5]
2016	5	[5]
Total	1,060	[5]
Planned New Wind Generation To Be Added over 5 Years	1,500
Planned New Canadian Wind With Internal Approvals	150
Planned New Canadian Wind Generation Requiring Internal Approvals MW	470
Expected Cost of New Wind Projects Requiring Internal Approvals - Low End of Range	1,300
Expected Costs of New Wind Projects Requiring Internal Approvals - High End of Range	1,500
NextEra Energy Resources [Member] | Solar Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	390	[6]
2013	670	[6]
2014	160	[6]
2015	5	[6]
2016	0	[6]
Total	1,225	[6]
Planned new solar generation over 5 year period (in megawatts)	625
Planned New Solar Capacity of Equity Method Investment	550
Planned new solar capacity of projects requiring internal approvals	270
Expected cost of new solar projects requiring internal approals - Low End of Range	600
Expected Costs of New Solar Projects Requiring Internal Approval - High End of Range	800
NextEra Energy Resources [Member] | Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2012	85	[7]
2013	200	[7]
2014	120	[7]
2015	135	[7]
2016	60	[7]
Total	600	[7]
Corporate and Other [Member]
Planned Capital Expenditures [Line Items]
2012	115	[8]
2013	115	[8]
2014	45	[8]
2015	45	[8]
2016	45	[8]
Total	365	[8]
Allowance for funds used during construction (AFUDC) - 2012	9
Allowance for funds used during construction (AFUDC) - 2013	$ 14

[1] Includes allowance for funds used during construction (AFUDC) of approximately $24 million, $82 million, $53 million, $48 million and $27 million in 2012 to 2016, respectively.

[2] Consists of projects that have received FPSC approval. Includes pre-construction costs and carrying charges (equal to a pretax AFUDC rate) on construction costs recoverable through the capacity clause of approximately $24 million, $42 million and $12 million in 2012 to 2014, respectively. 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.

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

[4] Includes nuclear fuel.

[5] Consists of capital expenditures for planned new wind projects and related transmission totaling approximately 1,500 mw, including approximately 150 mw in Canada, that have received applicable internal approvals. Excludes new Canadian wind projects requiring internal approvals with generation totaling approximately 470 mw in 2014 and 2015, with an estimated cost of approximately $1.3 billion to $1.5 billion.

[6] Consists of capital expenditures for planned new solar projects and related transmission totaling 625 mw that have received applicable internal approvals, including equity contributions associated with a 50% equity method investment in a 550 mw solar project. Excludes solar projects requiring internal approvals with generation totaling 270 mw with an estimated cost of approximately $600 million to $800 million.

[7] Consists of capital expenditures that have received applicable internal approvals.

[8] Consists of capital expenditures that have received applicable internal approvals and includes AFUDC of approximately $9 million and $14 million in 2012 and 2013, respectively.