Summarized Financial Information of NEECH (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2010		Sep. 30, 2010		Jun. 30, 2010		Mar. 31, 2010		Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Condensed Financial Statements, Captions [Line Items]
Ownership percentage	100.00%																100.00%
Consolidated Statements of Income [Abstract]
Operating revenues	$ 3,864	[1],[2]	$ 4,382	[1],[2]	$ 3,961	[1],[2]	$ 3,134	[1],[2]	$ 3,413	[1],[2]	$ 4,691	[1],[2]	$ 3,591	[1],[2]	$ 3,622	[1],[2]	$ 15,341		$ 15,317		$ 15,643
Operating expenses																	(11,963)		(12,074)		(13,049)
Interest expense																	(1,035)		(979)		(849)
Equity in earnings of subsidiaries																	0		0		0
Other income (deductions) - net																	109		225		197
Income (loss) before income taxes																	2,452		2,489		1,942
Income tax expense (benefit)																	529		532		327
NET INCOME	667	[1],[2]	407	[1],[2]	580	[1],[2]	268	[1],[2]	263	[1],[2]	720	[1],[2]	417	[1],[2]	556	[1],[2]	1,923		1,957		1,615
PROPERTY, PLANT AND EQUIPMENT
Electric utility plant in service and other property	57,552								54,221								57,552		54,221
Less accumulated depreciation and amortization	(15,062)								(15,146)								(15,062)		(15,146)
Total property, plant and equipment - net	42,490								39,075								42,490		39,075
CURRENT ASSETS
Cash and cash equivalents	377								302								377		302		238
Receivables	1,802								2,582								1,802		2,582
Other	2,693								2,374								2,693		2,374
Total current assets	4,872								5,258								4,872		5,258
OTHER ASSETS
Investment in subsidiaries	0								0								0		0
Other	9,826								8,661								9,826		8,661
Total other assets	9,826								8,661								9,826		8,661
TOTAL ASSETS	57,188								52,994								57,188		52,994
CAPITALIZATION
Common shareholders' equity	14,943								14,461								14,943		14,461
Long-term debt	20,810								18,013								20,810		18,013
Total capitalization	35,753								32,474								35,753		32,474
CURRENT LIABILITIES
Debt due within one year	2,157								2,809								2,157		2,809
Accounts payable	1,191								1,124								1,191		1,124
Other	3,371								2,971								3,371		2,971
Total current liabilities	6,719								6,904								6,719		6,904
OTHER LIABILITIES AND DEFERRED CREDITS
Asset retirement obligations	1,611								1,639								1,611		1,639		2,418
Accumulated deferred income taxes	5,681								5,109								5,681		5,109
Other	7,424								6,868								7,424		6,868
Total other liabilities and deferred credits	14,716								13,616								14,716		13,616
TOTAL CAPITALIZATION AND LIABILITIES	57,188								52,994								57,188		52,994
Condensed Consolidating Statements of Cash Flows [Abstract]
Dividends from FPL																	0		0		0
Dividends from NEECH																	0		0		0
Other																	4,074		3,834		4,463
Net cash provided by operating activities																	4,074		3,834		4,463
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures, independent power and other investments and nuclear fuel purchases																	(6,628)		(5,846)		(6,006)
Capital contribution to FPL																	0		0		0
Cash grants under the Recovery Act																	624		588		100
Sale of natural gas-fired generating assets																	1,204		0		0
Loan proceeds restricted for construction																	(565)		0		0
Other - net																	86		(26)		(29)
Net cash used in investing activities																	(5,279)		(5,284)		(5,935)
CASH FLOWS FROM FINANCING ACTIVITES
Issuances of long-term debt																	3,940		3,724		3,220
Retirements of long-term debt																	(2,121)		(769)		(1,635)
Proceeds from sale of differential membership interests																	466		261		0
Net change in short-term debt																	460		(1,130)		154
Dividends on common stock																	(920)		(823)		(766)
Dividends to NEE																	0		0		0
Other - net																	(545)		251		202
Net cash provided by (used in) financing activities																	1,280		1,514		1,175
Net increase (decrease) in cash and cash equivalents																	75		64		(297)
Cash and cash equivalents at beginning of year							302								238		302		238		535
Cash and cash equivalents at end of year	377								302								377		302		238
NextEra Energy (Guarantor) [Member]
Consolidated Statements of Income [Abstract]
Operating revenues																	0		0		0
Operating expenses																	(15)		(4)		0
Interest expense																	(14)		(15)		(17)
Equity in earnings of subsidiaries																	1,878		1,931		1,618
Other income (deductions) - net																	1		16		14
Income (loss) before income taxes																	1,850		1,928		1,615
Income tax expense (benefit)																	(73)		(29)		0
NET INCOME																	1,923		1,957		1,615
PROPERTY, PLANT AND EQUIPMENT
Electric utility plant in service and other property	31								19								31		19
Less accumulated depreciation and amortization	(3)								0								(3)		0
Total property, plant and equipment - net	28								19								28		19
CURRENT ASSETS
Cash and cash equivalents	1								0								1		0		0
Receivables	84								654								84		654
Other	5								9								5		9
Total current assets	90								663								90		663
OTHER ASSETS
Investment in subsidiaries	14,879								14,150								14,879		14,150
Other	513								365								513		365
Total other assets	15,392								14,515								15,392		14,515
TOTAL ASSETS	15,510								15,197								15,510		15,197
CAPITALIZATION
Common shareholders' equity	14,943								14,461								14,943		14,461
Long-term debt	0								0								0		0
Total capitalization	14,943								14,461								14,943		14,461
CURRENT LIABILITIES
Debt due within one year	0								0								0		0
Accounts payable	0								0								0		0
Other	250								352								250		352
Total current liabilities	250								352								250		352
OTHER LIABILITIES AND DEFERRED CREDITS
Asset retirement obligations	0								0								0		0
Accumulated deferred income taxes	68								53								68		53
Other	249								331								249		331
Total other liabilities and deferred credits	317								384								317		384
TOTAL CAPITALIZATION AND LIABILITIES	15,510								15,197								15,510		15,197
Condensed Consolidating Statements of Cash Flows [Abstract]
Dividends from FPL																	400		250		485
Dividends from NEECH																	898		970		25
Other																	383		(42)		81
Net cash provided by operating activities																	1,681		1,178		591
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures, independent power and other investments and nuclear fuel purchases																	(16)		0		0
Capital contribution to FPL																	(410)		(660)		0
Cash grants under the Recovery Act																	0		0		0
Sale of natural gas-fired generating assets																	0		0		0
Loan proceeds restricted for construction																	0		0		0
Other - net																	16		0		(7)
Net cash used in investing activities																	(410)		(660)		(7)
CASH FLOWS FROM FINANCING ACTIVITES
Issuances of long-term debt																	0		0		0
Retirements of long-term debt																	0		0		0
Proceeds from sale of differential membership interests																	0		0		0
Net change in short-term debt																	0		0		0
Dividends on common stock																	(920)		(823)		(766)
Dividends to NEE																	0		0		0
Other - net																	(350)		305		182
Net cash provided by (used in) financing activities																	(1,270)		(518)		(584)
Net increase (decrease) in cash and cash equivalents																	1		0		0
Cash and cash equivalents at beginning of year							0								0		0		0		0
Cash and cash equivalents at end of year	1								0								1		0		0
Capital Holdings Consolidated [Member]
Consolidated Statements of Income [Abstract]
Operating revenues																	4,740		4,843		4,164
Operating expenses																	(3,423)		(3,446)		(3,151)
Interest expense																	(645)		(618)		(531)
Equity in earnings of subsidiaries																	0		0		0
Other income (deductions) - net																	85		188		160
Income (loss) before income taxes																	757		967		642
Income tax expense (benefit)																	(53)		(19)		(145)
NET INCOME																	810		986		787
PROPERTY, PLANT AND EQUIPMENT
Electric utility plant in service and other property	22,351								21,779								22,351		21,779
Less accumulated depreciation and amortization	(4,143)								(4,275)								(4,143)		(4,275)
Total property, plant and equipment - net	18,208								17,504								18,208		17,504
CURRENT ASSETS
Cash and cash equivalents	339								282								339		282		156
Receivables	1,026								1,380								1,026		1,380
Other	1,075								1,024								1,075		1,024
Total current assets	2,440								2,686								2,440		2,686
OTHER ASSETS
Investment in subsidiaries	0								0								0		0
Other	4,849								3,845								4,849		3,845
Total other assets	4,849								3,845								4,849		3,845
TOTAL ASSETS	25,497								24,035								25,497		24,035
CAPITALIZATION
Common shareholders' equity	4,030								4,359								4,030		4,359
Long-term debt	13,327								11,331								13,327		11,331
Total capitalization	17,357								15,690								17,357		15,690
CURRENT LIABILITIES
Debt due within one year	1,778								2,664								1,778		2,664
Accounts payable	512								571								512		571
Other	1,520								1,361								1,520		1,361
Total current liabilities	3,810								4,596								3,810		4,596
OTHER LIABILITIES AND DEFERRED CREDITS
Asset retirement obligations	466								556								466		556
Accumulated deferred income taxes	1,376								1,336								1,376		1,336
Other	2,488								1,857								2,488		1,857
Total other liabilities and deferred credits	4,330								3,749								4,330		3,749
TOTAL CAPITALIZATION AND LIABILITIES	25,497								24,035								25,497		24,035
Condensed Consolidating Statements of Cash Flows [Abstract]
Dividends from FPL																	0		0		0
Dividends from NEECH																	0		0		0
Other																	1,446		1,940		1,513
Net cash provided by operating activities																	1,446		1,940		1,513
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures, independent power and other investments and nuclear fuel purchases																	(3,109)		(3,140)		(3,289)
Capital contribution to FPL																	0		0		0
Cash grants under the Recovery Act																	406		428		100
Sale of natural gas-fired generating assets																	1,204		0		0
Loan proceeds restricted for construction																	(565)		0		0
Other - net																	60		5		1
Net cash used in investing activities																	(2,004)		(2,707)		(3,188)
CASH FLOWS FROM FINANCING ACTIVITES
Issuances of long-term debt																	3,100		2,800		2,704
Retirements of long-term debt																	(2,076)		(727)		(1,371)
Proceeds from sale of differential membership interests																	466		261		0
Net change in short-term debt																	231		(414)		110
Dividends on common stock																	0		0		0
Dividends to NEE																	(898)		(970)		(25)
Other - net																	(208)		(57)		(1)
Net cash provided by (used in) financing activities																	615		893		1,417
Net increase (decrease) in cash and cash equivalents																	57		126		(258)
Cash and cash equivalents at beginning of year							282								156		282		156		414
Cash and cash equivalents at end of year	339								282								339		282		156
Other [Member]
Consolidated Statements of Income [Abstract]
Operating revenues																	10,601	[3]	10,474	[3]	11,479	[3]
Operating expenses																	(8,525)	[3]	(8,624)	[3]	(9,898)	[3]
Interest expense																	(376)	[3]	(346)	[3]	(301)	[3]
Equity in earnings of subsidiaries																	(1,878)	[3]	(1,931)	[3]	(1,618)	[3]
Other income (deductions) - net																	23	[3]	21	[3]	23	[3]
Income (loss) before income taxes																	(155)	[3]	(406)	[3]	(315)	[3]
Income tax expense (benefit)																	655	[3]	580	[3]	472	[3]
NET INCOME																	(810)	[3]	(986)	[3]	(787)	[3]
PROPERTY, PLANT AND EQUIPMENT
Electric utility plant in service and other property	35,170	[3]							32,423	[3]							35,170	[3]	32,423	[3]
Less accumulated depreciation and amortization	(10,916)	[3]							(10,871)	[3]							(10,916)	[3]	(10,871)	[3]
Total property, plant and equipment - net	24,254	[3]							21,552	[3]							24,254	[3]	21,552	[3]
CURRENT ASSETS
Cash and cash equivalents	37	[3]							20	[3]							37	[3]	20	[3]	82	[3]
Receivables	692	[3]							548	[3]							692	[3]	548	[3]
Other	1,613	[3]							1,341	[3]							1,613	[3]	1,341	[3]
Total current assets	2,342	[3]							1,909	[3]							2,342	[3]	1,909	[3]
OTHER ASSETS
Investment in subsidiaries	(14,879)	[3]							(14,150)	[3]							(14,879)	[3]	(14,150)	[3]
Other	4,464	[3]							4,451	[3]							4,464	[3]	4,451	[3]
Total other assets	(10,415)	[3]							(9,699)	[3]							(10,415)	[3]	(9,699)	[3]
TOTAL ASSETS	16,181	[3]							13,762	[3]							16,181	[3]	13,762	[3]
CAPITALIZATION
Common shareholders' equity	(4,030)	[3]							(4,359)	[3]							(4,030)	[3]	(4,359)	[3]
Long-term debt	7,483	[3]							6,682	[3]							7,483	[3]	6,682	[3]
Total capitalization	3,453	[3]							2,323	[3]							3,453	[3]	2,323	[3]
CURRENT LIABILITIES
Debt due within one year	379	[3]							145	[3]							379	[3]	145	[3]
Accounts payable	679	[3]							553	[3]							679	[3]	553	[3]
Other	1,601	[3]							1,258	[3]							1,601	[3]	1,258	[3]
Total current liabilities	2,659	[3]							1,956	[3]							2,659	[3]	1,956	[3]
OTHER LIABILITIES AND DEFERRED CREDITS
Asset retirement obligations	1,145	[3]							1,083	[3]							1,145	[3]	1,083	[3]
Accumulated deferred income taxes	4,237	[3]							3,720	[3]							4,237	[3]	3,720	[3]
Other	4,687	[3]							4,680	[3]							4,687	[3]	4,680	[3]
Total other liabilities and deferred credits	10,069	[3]							9,483	[3]							10,069	[3]	9,483	[3]
TOTAL CAPITALIZATION AND LIABILITIES	16,181	[3]							13,762	[3]							16,181	[3]	13,762	[3]
Condensed Consolidating Statements of Cash Flows [Abstract]
Dividends from FPL																	(400)	[3]	(250)	[3]	(485)	[3]
Dividends from NEECH																	(898)	[3]	(970)	[3]	(25)	[3]
Other																	2,245	[3]	1,936	[3]	2,869	[3]
Net cash provided by operating activities																	947	[3]	716	[3]	2,359	[3]
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures, independent power and other investments and nuclear fuel purchases																	(3,503)	[3]	(2,706)	[3]	(2,717)	[3]
Capital contribution to FPL																	410	[3]	660	[3]	0	[3]
Cash grants under the Recovery Act																	218	[3]	160	[3]	0	[3]
Sale of natural gas-fired generating assets																	0	[3]	0	[3]	0	[3]
Loan proceeds restricted for construction																	0	[3]	0	[3]	0	[3]
Other - net																	10	[3]	(31)	[3]	(23)	[3]
Net cash used in investing activities																	(2,865)	[3]	(1,917)	[3]	(2,740)	[3]
CASH FLOWS FROM FINANCING ACTIVITES
Issuances of long-term debt																	840	[3]	924	[3]	516	[3]
Retirements of long-term debt																	(45)	[3]	(42)	[3]	(264)	[3]
Proceeds from sale of differential membership interests																	0	[3]	0	[3]	0	[3]
Net change in short-term debt																	229	[3]	(716)	[3]	44	[3]
Dividends on common stock																	0	[3]	0	[3]	0	[3]
Dividends to NEE																	898	[3],[4]	970	[3],[4]	25	[3],[4]
Other - net																	13	[3]	3	[3]	21	[3]
Net cash provided by (used in) financing activities																	1,935	[3]	1,139	[3]	342	[3]
Net increase (decrease) in cash and cash equivalents																	17	[3]	(62)	[3]	(39)	[3]
Cash and cash equivalents at beginning of year							20	[3]							82	[3]	20	[3]	82	[3]	121	[3]
Cash and cash equivalents at end of year	$ 37	[3]							$ 20	[3]							$ 37	[3]	$ 20	[3]	$ 82	[3]

[1] In the opinion of NEE and FPL, all adjustments, which consist of normal recurring accruals necessary to present a fair statement of the amounts shown for such periods, have been made. Results of operations for an interim period generally will not give a true indication of results for the year.

[2] The sum of the quarterly amounts may not equal the total for the year due to rounding.

[3] Represents FPL and consolidating adjustments.

[4] Other column also includes cash dividends from FPL to NEE of $400 million, $250 million and $485 million, respectively, and corresponding consolidating adjustments.