CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 FPL [Member]	Dec. 31, 2011 FPL [Member]	Dec. 31, 2010 FPL [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 1,911	$ 1,923	$ 1,957	$ 1,240	$ 1,068	$ 945
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	1,518	1,567	1,788	659	798	1,008
Nuclear fuel amortization	254	277	285	107	147	137
Loss on sale of natural gas-fired generating assets	0	151	0
Impairment charges	0	51	19
Unrealized (gains) losses on marked to market energy contracts	(85)	(271)	(386)
Deferred income taxes	682	553	511	988	675	419
Cost recovery clauses and franchise fees	129	181	(629)	129	181	(629)
Changes in prepaid option premiums and derivative settlements	(90)	(11)	86
Benefits associated with differential membership interests	(81)	(118)	(16)
Equity in earnings of equity method investees	(13)	(55)	(58)
Distributions of earnings from equity method investees	32	95	74
Allowance for equity funds used during construction	(67)	(39)	(37)	(52)	(35)	(36)
Gains on disposal of assets - net	(157)	(85)	(67)
Other than temporary impairment losses on securities held in nuclear decommissioning funds	16	36	16
Other - net	133	321	54	(27)	73	16
Changes in operating assets and liabilities:
Customer receivables				(78)	28	127
Customer and other receivables	286	(149)	102
Other receivables				(18)	37	(43)
Materials, supplies and fossil fuel inventory	1	(308)	22	33	(254)	23
Other current assets	(46)	(22)	(52)	(20)	(20)	(25)
Other assets	3	(103)	42	(41)	(52)	40
Accounts payable	(17)	(97)	179	4	(49)	51
Customer deposits	(39)	(87)	21	(37)	(88)	22
Margin cash collateral	104	81	61
Income taxes	(20)	62	56	(111)	(215)	(129)
Interest and other taxes	15	12	(3)	1	(21)	7
Other current liabilities	139	3	76	67	32	22
Other liabilities	(44)	(192)	(63)	(21)	(60)	(21)
Net cash provided by operating activities	3,992	4,074	3,834	2,823	2,245	1,934
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(4,070)	(3,137)	(2,605)	(4,070)	(3,137)	(2,605)
Independent power and other investments of NextEra Energy Resources	(4,591)	(2,601)	(2,899)
Cash grants under the American Recovery and Reinvestment Act of 2009	196	624	588	0	218	161
Funds received from a spent fuel settlement	48	73	44	31	57	32
Nuclear fuel purchases	(305)	(538)	(274)	(215)	(365)	(101)
Other capital expenditures	(495)	(352)	(68)
Sale of natural gas-fired generating assets	0	1,204	0
Change in loan proceeds restricted for construction	314	(565)	0
Proceeds from sale or maturity of securities in special use funds	5,028	4,348	6,726	3,790	2,988	5,079
Purchases of securities in special use funds	(5,107)	(4,440)	(6,835)	(3,838)	(3,052)	(5,160)
Proceeds from sale or maturity of other securities	273	488	721
Purchases of other securities	(312)	(515)	(714)
Other - net	93	132	32	37	32	33
Net cash used in investing activities	(8,928)	(5,279)	(5,284)	(4,265)	(3,259)	(2,561)
CASH FLOWS FROM FINANCING ACTIVITES
Issuances of long-term debt	6,630	3,940	3,724	1,296	840	924
Retirements of long-term debt	(1,612)	(2,121)	(769)	(50)	(45)	(42)
Proceeds from sale of differential membership interests	808	466	261
Payments to differential membership investors	(139)	(100)	0
Net change in short-term debt	61	460	(1,130)	(225)	229	(717)
Capital contributions from NEE				440	410	660
Issuances of common stock - net	405	48	308
Repurchases of common stock	(19)	(375)	0
Dividends on common stock	(1,004)	(920)	(823)	0	(400)	(250)
Other - net	(242)	(118)	(57)	(15)	(4)	(11)
Net cash provided by (used in) financing activities	4,888	1,280	1,514	1,446	1,030	564
Net increase (decrease) in cash and cash equivalents	(48)	75	64	4	16	(63)
Cash and cash equivalents at beginning of year	377	302	238	36	20	83
Cash and cash equivalents at end of year	329	377	302	40	36	20
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest (net of amount capitalized)	1,001	978	916	400	389	321
Cash paid (received) for income taxes - net	25	(95)	20	(124)	194	291
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Assumption of debt in connection with the purchase of independent power projects	0	0	35
Accrued property additions	970	909	545	472	526	275
Sale of natural gas-fired generating assets through assumption of debt by buyer	$ 0	$ 158	$ 0