CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 6,282	$ 3,246	$ 2,827
Reclassification of unrealized losses on cash flow hedges from accumulated other comprehensive income (loss) to net income	2	6	6
Net unrealized gains (losses) on securities still held	17	(84)	(11)
Reclassification from accumulated other comprehensive income (loss) to net income	13	10	(4)
Defined benefit pension and other benefits plans:
Net unrealized gain (loss) and unrecognized prior service benefit (cost)	21	(133)	95
Reclassification from accumulated other comprehensive income (loss) to net income	1	7	5
Net unrealized gains (losses) on foreign currency translation	13	(44)	(1)
Other comprehensive income related to equity method investee	1	1	1
Total other comprehensive income (loss), net of tax	68	(237)	91
COMPREHENSIVE INCOME	6,350	3,009	2,918
COMPREHENSIVE LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	1,025	920	747
COMPREHENSIVE INCOME ATTRIBUTABLE TO NEE	$ 7,375	$ 3,929	$ 3,665