CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
NET INCOME	$ 72	$ 1,129	$ 1,570	$ 1,436
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Reclassification of unrealized losses on cash flow hedges from accumulated other comprehensive income (loss) to net income	2	3	4	5
Net unrealized gains (losses) on available for sale securities:
Net unrealized gains (losses) on securities still held	1	14	(7)	6
Reclassification from accumulated other comprehensive income (loss) to net income	1	0	(2)	(1)
Reclassification from accumulated other comprehensive income (loss) to net income	1	(2)	2	1
Net unrealized gains (losses) on foreign currency translation	11	17	15	(18)
Total other comprehensive income (loss), net of tax	16	32	12	(7)
IMPACT OF DISPOSAL OF A BUSINESS (NET OF $19 TAX BENEFIT)	0	0	0	10
COMPREHENSIVE INCOME	88	1,161	1,582	1,439
COMPREHENSIVE LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	181	143	347	262
COMPREHENSIVE INCOME ATTRIBUTABLE TO NEE	$ 269	$ 1,304	$ 1,929	$ 1,701