CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
NET INCOME	$ 304	$ 1,123	$ 1,874	$ 2,559
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Reclassification of unrealized losses on cash flow hedges from accumulated other comprehensive income (loss) to net income	0	2	4	7
Net unrealized gains (losses) on available for sale securities:
Net unrealized gains (losses) on securities still held	(2)	3	(9)	9
Reclassification from accumulated other comprehensive income (loss) to net income	(1)	(1)	(3)	(2)
Reclassification from accumulated other comprehensive income (loss) to net income	1	1	3	2
Net unrealized gains (losses) on foreign currency translation	(13)	8	2	(10)
Other comprehensive income related to equity method investees	1	0	1	0
Total other comprehensive income (loss), net of tax	(14)	13	(2)	6
IMPACT OF DISPOSAL OF A BUSINESS (NET OF $19 TAX BENEFIT)	0	0	0	10
COMPREHENSIVE INCOME	290	1,136	1,872	2,575
COMPREHENSIVE LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	148	104	495	366
COMPREHENSIVE INCOME ATTRIBUTABLE TO NEE	$ 438	$ 1,240	$ 2,367	$ 2,941