Segment Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Operating revenues		$ 7,172	$ 6,719	$ 21,236	$ 14,792
Operating expenses – net		5,343	5,028	13,670	12,953
Gains (losses) on disposal of businesses/assets – net		7	171	11	196
Net loss attributable to noncontrolling interests		200	137	733	646
Net income (loss) attributable to NEE		1,219	1,696	6,100	2,625
Net Income		$ 1,019	1,559	$ 5,367	1,979
Deemed capital structure of NextEra Energy Resources		70.00%		70.00%
Total assets		$ 171,674		$ 171,674		$ 158,935
Florida Power & Light Company
Segment Reporting Information [Line Items]
Operating revenues		5,475	5,075	14,169	13,211
Operating expenses – net		3,770	3,568	9,267	9,059
Net Income	[1]	1,183	1,074	3,406	2,939
Total assets		91,069		91,069		86,559
Operating Segments [Member] | FPL Segment
Segment Reporting Information [Line Items]
Operating revenues		5,475	5,075		13,211
Operating expenses – net		3,770	3,568	9,268	9,060
Gains (losses) on disposal of businesses/assets – net		0	0	1	1
Net loss attributable to noncontrolling interests		0	0	0	0
Net income (loss) attributable to NEE		1,183	1,074	3,406	2,939
Total assets		91,069		91,069		86,559
Operating Segments [Member] | NEER Segment
Segment Reporting Information [Line Items]
Operating revenues		1,669	1,652	7,016	1,627
Operating expenses – net		1,470	1,341	4,112	3,712
Gains (losses) on disposal of businesses/assets – net		8	173	6	208
Net loss attributable to noncontrolling interests		200	137	733	646
Net income (loss) attributable to NEE		(230)	655	2,672	(711)
Total assets		78,701		78,701		70,713
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operating revenues		28	(8)	51	(46)
Operating expenses – net		103	119	290	181
Gains (losses) on disposal of businesses/assets – net		(1)	(2)	4	(13)
Net loss attributable to noncontrolling interests		0	0	0	0
Net income (loss) attributable to NEE		266	$ (33)	22	$ 397
Total assets		$ 1,904		$ 1,904		$ 1,663

[1] FPL's comprehensive income is the same as reported net income.