CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
NET INCOME	$ 3,831	$ 1,591	[1],[2]
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Reclassification of unrealized losses on cash flow hedges from accumulated other comprehensive income (loss) to net income (net of $3 and $4 tax expense, respectively)	7	9
Net unrealized gains (losses) on available for sale securities:
Net unrealized gains (losses) on securities still held (net of $2 tax benefit and $26 tax expense, respectively)	(5)	34
Reclassification from accumulated other comprehensive income (loss) to net income (net of $2 and $10 tax benefit, respectively)	(1)	(16)
Defined benefit pension and other benefits plans (net of $1 and $2 tax benefit, respectively)	(2)	(3)
Net unrealized gains on foreign currency translation (net of $0 and less than $1 tax expense, respectively)	(20)	16
Other comprehensive income related to equity method investee (net of $1 and less than $1 tax expense, respectively)	2	1
Total other comprehensive income (loss), net of tax	(19)	41
IMPACT OF NEP DECONSOLIDATION (NET OF $15 TAX EXPENSE)	58	0
COMPREHENSIVE INCOME	3,870	1,632
COMPREHENSIVE (INCOME) LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	597	(19)
COMPREHENSIVE INCOME ATTRIBUTABLE TO NEE	$ 4,467	$ 1,613

[1] Prior period amounts have been retrospectively adjusted as discussed in Note 10 - Restricted Cash.

[2] Prior period amounts have been retrospectively adjusted as discussed in Note 3 - Amendments to Presentation of Retirement Benefits.