CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	[2]	Dec. 31, 2016	[2]
Statement of Comprehensive Income [Abstract]
Net income	$ 5,776	$ 5,323	[1],[3]	$ 2,999	[1],[3]
Reclassification of unrealized losses on cash flow hedges from accumulated other comprehensive income (loss) to net income	26	32		70
Net unrealized gains (losses) on securities still held	(12)	127		69
Reclassification from accumulated other comprehensive income (loss) to net income	1	(36)		(18)
Defined benefit pension and other benefits plans:
Net unrealized gain (loss) and unrecognized prior service benefit (cost)	(14)	46		(21)
Reclassification from accumulated other comprehensive income (loss) to net income	(3)	(2)		0
Net unrealized gains (losses) on foreign currency translation	(31)	23		(5)
Other comprehensive income related to equity method investee	4	2		2
Total other comprehensive income (loss), net of tax	(29)	192		97
AOCI Impact of NEP Deconsolidation	58	0		0
COMPREHENSIVE INCOME	5,805	5,515		3,096
COMPREHENSIVE (INCOME) LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	862	46		(93)
COMPREHENSIVE INCOME ATTRIBUTABLE TO NEE	$ 6,667	$ 5,561		$ 3,003

[1] Amounts have been retrospectively adjusted as discussed in Note 14 and Note 3 - Amendments to Presentation of Retirement Benefits.

[2] Amounts have been retrospectively adjusted as discussed in Note 14.

[3] Amounts have been retrospectively adjusted as discussed in Note 14.