CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income of NextEra Energy	$ 415	$ 407	$ 1,482	$ 1,256
Net unrealized gains (losses) on cash flow hedges:
Effective portion of net unrealized gains (losses), net of tax	(30)	(158)	(79)	(248)
Reclassification from AOCI to net income, net of tax	3	16	24	36
Net unrealized gains (losses) on available for sale securities:
Net unrealized gains (losses) on securities still held, net of tax	26	(43)	64	(20)
Reclassification from AOCI to net income, net of tax	(27)	(25)	(64)	(47)
Defined benefit pension and other benefits plans, net of tax	0	0	(6)	6
Net unrealized gains (losses) on foreign currency translation, net of tax	3	(19)	6	(7)
Other comprehensive income (loss) related to equity method investee, net of tax	(4)	0	(10)	0
Other Comprehensive Income (Loss), Net of Tax	(29)	(229)	(65)	(280)
Comprehensive income (loss) of NextEra Energy	$ 386	$ 178	$ 1,417	$ 976