CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
NET INCOME	$ 637	$ 650
Net unrealized gains (losses) on cash flow hedges:
Effective portion of net unrealized losses (net of $26 tax benefit)	0	(52)
Reclassification from accumulated other comprehensive loss to net income (net of $13 and $4 tax expense, respectively)	23	18
Net unrealized gains (losses) on available for sale securities:
Net unrealized gains on securities still held (net of $7 and $9 tax expense, respectively)	8	12
Reclassification from accumulated other comprehensive income to net income (net of $1 and $7 tax benefit, respectively)	(1)	(10)
Defined benefit pension and other benefits plans (net of $4 and $10 tax benefit, respectively)	(7)	(16)
Net unrealized gains on foreign currency translation (net of less than $1 and $8 tax expense, respectively)	20	14
Other comprehensive loss related to equity method investee (net of $2 and $1 tax benefit, respectively)	(3)	(2)
Total other comprehensive income (loss), net of tax	40	(36)
COMPREHENSIVE INCOME	677	614
LESS COMPREHENSIVE LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	(13)	(3)
COMPREHENSIVE INCOME ATTRIBUTABLE TO NEE	$ 690	$ 617