Commitments and Contingencies (Estimated Planned Capital Expenditures) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 MW
FPL [Member]
Planned Capital Expenditures [Line Items]
2013	$ 2,585
2014	2,585
2015	2,065
2016	1,850
2017	1,730
Total	10,815
FPL [Member] | New Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	915	[1],[2],[3]
2014	760	[1],[2],[3]
2015	295	[1],[2],[3]
2016	130	[1],[2],[3]
2017	0	[1],[2],[3]
Total	2,100	[1],[2],[3]
Pre Construction Costs And Carrying Charges Next Year	42
Pre Construction Costs And Carrying Charges Second Year	12
FPL [Member] | Existing Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	645	[1]
2014	710	[1]
2015	675	[1]
2016	580	[1]
2017	555	[1]
Total	3,165	[1]
FPL [Member] | Transmission and Distribution Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	745
2014	795
2015	745
2016	770
2017	795
Total	3,850
FPL [Member] | Nuclear Fuel Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	125
2014	175
2015	245
2016	245
2017	260
Total	1,050
FPL [Member] | General and Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	155
2014	145
2015	105
2016	125
2017	120
Total	650
FPL [Member] | Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - 2013	85
Allowance for funds used during construction (AFUDC) - 2014	52
Allowance for funds used during construction (AFUDC) - 2015	47
Allowance for funds used during construction (AFUDC) - 2016	27
NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
2013	1,805
2014	575
2015	435
2016	385
2017	335
Total	3,535
NextEra Energy Resources [Member] | Wind Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	385	[4]
2014	45	[4]
2015	5	[4]
2016	5	[4]
2017	5	[4]
Total	445	[4]
Planned new wind generation over the next five years (in megawatts)	300
Planned new Canadian wind generation with internal approvals (in megawatts)	125
Planned new Canadian wind generation requiring internal approvals	470
Expected Cost of New Wind Projects Requiring Internal Approvals - Low End of Range	1,300
Expected Cost 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]
2013	830	[5]
2014	175	[5]
2015	5	[5]
2016	0	[5]
2017	0	[5]
Total	1,010	[5]
Expected cost of new solar projects requiring internal approvals - low end of range	600
Expected Costs of New Solar Projects Requiring Internal Approval - High End of Range	800
Planned new solar generation over 5 year period (in megawatts)	645
Planned new solar capacity of equity method investment (in megawatts)	550
Equity Method Investment, Ownership Percentage	50.00%
Planned new solar capacity of projects requiring internal approvals (in megawatts)	250
Planned capacity of Spain Solar projects - in megawatts	99.8
Maximum estimated exposure related to Spain Solar projects	300
NextEra Energy Resources [Member] | Nuclear Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	280	[6]
2014	310	[6]
2015	310	[6]
2016	330	[6]
2017	280	[6]
Total	1,510	[6]
NextEra Energy Resources [Member] | Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2013	310	[7]
2014	45	[7]
2015	115	[7]
2016	50	[7]
2017	50	[7]
Total	570	[7]
Corporate and Other [Member]
Planned Capital Expenditures [Line Items]
2013	175	[8]
2014	75	[8]
2015	70	[8]
2016	70	[8]
2017	70	[8]
Total	460	[8]
Planned Capital Expenditures Afudc Next Year	$ 21

[1] Includes AFUDC of approximately $85 million, $52 million, $47 million and $27 million for 2013 through 2016, respectively.

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

[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 $42 million and $12 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] 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 cost of approximately $1.3 billion to $1.5 billion.

[5] 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.

[6] Includes nuclear fuel.

[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 related to Lone Star of approximately $21 million in 2013.