Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Segment Reporting Information [Line Items]
OPERATING REVENUES	$ 4,394		$ 3,843		$ 11,506		$ 10,881
Operating revenues	4,394		3,843		11,506		10,881
Operating expenses	3,209		3,101		8,905		8,336
Income (loss) from continuing operations	698		415		1,393		1,482
NET GAIN FROM DISCONTINUED OPERATIONS, NET OF INCOME TAXES	0		0		188		0
Net income (loss)	698		415		1,581		1,482
Total assets	67,166				67,166				64,439
Deemed capital structure of NextEra Energy Resources	70.00%				70.00%
Impairment charge	0		0		300		0
Impairment Of Long Lived Assets Held For Use After Tax					342
Assets held for sale	0				0				335
FPL [Member]
Segment Reporting Information [Line Items]
OPERATING REVENUES	3,020		2,975
Operating expenses	2,242		2,256		5,860		5,916
Income (loss) from continuing operations					1,101		984
NET GAIN FROM DISCONTINUED OPERATIONS, NET OF INCOME TAXES					0		0
Net income (loss)	422		392
Total assets	36,168				36,168				34,853
NextEra Energy Resources [Member]
Segment Reporting Information [Line Items]
Operating revenues	1,281	[1]	808	[1]	3,343	[1]	2,929	[1]
Operating expenses	904	[1]	793	[1],[2]	2,860	[1],[3]	2,271	[1],[2]
Income (loss) from continuing operations					295	[1],[4]	516	[1],[4]
NET GAIN FROM DISCONTINUED OPERATIONS, NET OF INCOME TAXES					175	[1],[5]	0	[1]
Net income (loss)	281	[1],[4]	44	[1],[4]	470	[1],[4]	516	[1],[4]
Total assets	28,525				28,525				27,139	[6]
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operating revenues	93		60		258		174
Operating expenses	63		52		185		149
Income (loss) from continuing operations					(3)		(18)
NET GAIN FROM DISCONTINUED OPERATIONS, NET OF INCOME TAXES					13	[5]	0
Net income (loss)	(5)		(21)		10		(18)
Total assets	2,473				2,473				2,447
FPL [Member]
Segment Reporting Information [Line Items]
OPERATING REVENUES	3,020		2,975		7,905		7,778
Operating expenses	2,242		2,256		5,860		5,916
Net income (loss)	422	[7]	392	[7]	1,101	[7]	984	[7]
Total assets	$ 36,168				$ 36,168				$ 34,853

[1] Interest expense allocated from NEECH is based on a deemed capital structure of 70% debt. For this purpose, the deferred credit associated with differential membership interests sold by NEER subsidiaries is included with debt. Residual non-utility interest expense is included in Corporate and Other.

[2] )Amount is restated to conform to current year's presentation.

[3] Includes an impairment charge on NEER's Spain solar projects of $300 million. See Note 3 - Nonrecurring Fair Value Measurements.

[4] Includes NEER's tax benefits related to PTCs and for the nine months ended September 30, 2013 also includes after-tax charges of $342 million associated with the impairment of the Spain solar projects. See Note 3 - Nonrecurring Fair Value Measurements and Note 5.

[5] See Note 6.

[6] Includes assets held for sale of approximately $335 million.

[7] (a)FPL's comprehensive income is the same as reported net income.