Commitments and Contingencies (Planned Capital Expenditures) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013 MW
Planned Capital Expenditures [Line Items]
Amount of long-term debt reclassified into current due to event of default	$ 631,000,000
Amount of noncurrent derivative liability reclassified into current derivative liability due to event of default.	102,000,000
Remaining equity funding commitment related to Spain solar projects	40,000,000
Amount of debt outstanding under financing agreements related to Spain solar projects	653,000,000
Amount of gross derivative liability related to Spain solar projects	173,000,000
FPL [Member]
Planned Capital Expenditures [Line Items]
2013	2,105,000,000	[1]
2014	2,755,000,000	[1]
2015	2,280,000,000	[1]
2016	2,160,000,000	[1]
2017	1,640,000,000	[1]
Total	10,940,000,000	[1]
Incremental Capital Expenditures Low Range	3,000,000,000
Incremental Capital Expenditures High Range	4,000,000,000
FPL [Member] | New Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	585,000,000	[2],[3],[4]
2014	760,000,000	[2],[3],[4]
2015	250,000,000	[2],[3],[4]
2016	175,000,000	[2],[3],[4]
2017	0	[2],[3],[4]
Total	1,770,000,000	[2],[3],[4]
Pre-construction costs and carrying charges (equal to a pretax AFUDC rate) - 2013	27,000,000
Pre-construction costs and carrying charges (equal to a pretax AFUDC rate) - 2014	17,000,000
FPL [Member] | Existing Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	525,000,000	[2]
2014	685,000,000	[2]
2015	650,000,000	[2]
2016	555,000,000	[2]
2017	530,000,000	[2]
Total	2,945,000,000	[2]
FPL [Member] | Transmission And Distribution Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	620,000,000
2014	1,020,000,000
2015	1,065,000,000
2016	1,090,000,000
2017	770,000,000
Total	4,565,000,000
FPL [Member] | Nuclear Fuel Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	225,000,000
2014	140,000,000
2015	210,000,000
2016	220,000,000
2017	225,000,000
Total	1,020,000,000
FPL [Member] | General And Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	150,000,000
2014	150,000,000
2015	105,000,000
2016	120,000,000
2017	115,000,000
Total	640,000,000
FPL [Member] | Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - 2013	56,000,000
Allowance for funds used during construction (AFUDC) - 2014	55,000,000
Allowance for funds used during construction (AFUDC) - 2015	46,000,000
Allowance for funds used during construction (AFUDC) - 2016	26,000,000
NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
2013	1,235,000,000
2014	520,000,000
2015	375,000,000
2016	385,000,000
2017	340,000,000
Total	2,855,000,000
NextEra Energy Resources [Member] | Nuclear Fuel Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	225,000,000	[5]
2014	275,000,000	[5]
2015	250,000,000	[5]
2016	330,000,000	[5]
2017	285,000,000	[5]
Total	1,365,000,000	[5]
NextEra Energy Resources [Member] | Wind Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	205,000,000	[6]
2014	45,000,000	[6]
2015	5,000,000	[6]
2016	5,000,000	[6]
2017	5,000,000	[6]
Total	265,000,000	[6]
Planned New Wind Generation To Be Added over 5 Years	300
Planned New Canadian Wind With Internal Approvals	125
Planned New Canadian Wind Generation Requiring Internal Approvals MW	470
Expected Cost of New Wind Projects Requiring Internal Approvals - Low End of Range	1,300,000,000
Expected Cost of New Wind Projects Requiring Internal Approvals - High End of Range	1,700,000,000
Planned US wind generation to be added in 2013 and 2014 in megawatts - Low end of range	500
Planned US wind generation to be added in 2013 and 2014 in megawatts - High end of range	1,500
Planned cost of US wind generation to be added in 2013 and 2014 - Low end of range	1,000,000,000
Planned cost of US wind generation to be added in 2013 and 2014 - High end of range	3,000,000,000
NextEra Energy Resources [Member] | Solar Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	605,000,000	[7]
2014	155,000,000	[7]
2015	5,000,000	[7]
2016	0	[7]
2017	0	[7]
Total	765,000,000	[7]
Planned new solar generation over 5 year period (in megawatts)	645
Planned New Solar Capacity of Equity Method Investment	550
Planned new solar capacity of projects requiring internal approvals	250
Expected Cost of New Solar Projects Requiring Internal Approvals - Low End of Range	600,000,000
Expected Costs of New Solar Projects Requiring Internal Approval - High End of Range	800,000,000
Maximum Planned New Incremental Solar Generation Through 2016 in megawatts	300
Maximum Cost of Planned New Incremental Solar Generation Through 2016	1,000,000,000
NextEra Energy Resources [Member] | Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	200,000,000	[8]
2014	45,000,000	[8]
2015	115,000,000	[8]
2016	50,000,000	[8]
2017	50,000,000	[8]
Total	460,000,000	[8]
Corporate and Other [Member]
Planned Capital Expenditures [Line Items]
2013	85,000,000
2014	80,000,000
2015	70,000,000
2016	70,000,000
2017	70,000,000
Total	$ 375,000,000

[1] FPL has identified $3 billion to $4 billion in potential incremental capital expenditures through 2016 in addition to what is included in the table above.

[2] Includes allowance for funds used during construction (AFUDC) of approximately $56 million, $55 million, $46 million and $26 million in 2013 through 2016, respectively.

[3] Consists of projects that have received FPSC approval. Includes pre-construction costs and carrying charges (equal to a fixed pretax AFUDC rate) on construction costs recoverable through the capacity clause of approximately $27 million and $17 million in 2013 and 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.

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

[5] Includes nuclear fuel.

[6] Consists of capital expenditures for new wind projects and related transmission totaling approximately 300 mw, including approximately 125 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 total cost of approximately $1.3 billion to $1.7 billion. NEER expects to add 500 to 1,500 mw of new U.S. wind generation through 2014 at a total cost of approximately $1 billion to $3 billion.

[7] Consists of capital expenditures for new solar projects and related transmission totaling 645 mw that have received applicable internal approvals, including equity contributions associated with a 50% equity investment in a 550 mw solar project. Excludes solar projects requiring internal approvals with generation totaling 250 mw with an estimated cost of approximately $600 million to $800 million. Additionally, NEER expects to add up to 300 mw of incremental solar generation at a cost of up to $1 billion through 2016.

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