Segment Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) segment	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | segment			2
Operating revenues	$ 7,567	$ 7,172	$ 19,368	$ 21,236
Operating expenses – net	4,942	5,343	13,148	13,670
Gains (losses) on disposal of businesses/assets – net	231	7	318	11
Net loss attributable to noncontrolling interests	261	200	918	733
Net income (loss) attributable to NEE	$ 1,852	1,219	$ 5,743	6,100
Deemed capital structure of NextEra Energy Resources	70.00%		70.00%
Total assets	$ 186,013		$ 186,013		$ 177,489
Florida Power & Light Company
Segment Reporting Information [Line Items]
Operating revenues	4,939	5,475	13,163	14,169
Operating expenses – net	3,110	3,770	7,919	9,267
Total assets	96,190		96,190		91,469
Operating Segments [Member] | FPL Segment
Segment Reporting Information [Line Items]
Operating revenues	4,939	5,475	13,163	14,169
Operating expenses – net	3,110	3,770	7,919	9,268
Gains (losses) on disposal of businesses/assets – net	0	0	0	1
Net loss attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to NEE	1,293	1,183	3,698	3,406
Total assets	96,190		96,190		91,469
Operating Segments [Member] | NEER Segment
Segment Reporting Information [Line Items]
Operating revenues	2,585	1,669	6,094	7,016
Operating expenses – net	1,715	1,470	4,940	4,112
Gains (losses) on disposal of businesses/assets – net	232	8	326	6
Net loss attributable to noncontrolling interests	261	200	918	733
Net income (loss) attributable to NEE	1,223	(230)	2,741	2,672
Total assets	87,158		87,158		83,145
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operating revenues	43	28	111	51
Operating expenses – net	117	103	289	290
Gains (losses) on disposal of businesses/assets – net	(1)	(1)	(8)	4
Net loss attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to NEE	(664)	$ 266	(696)	$ 22
Total assets	$ 2,665		$ 2,665		$ 2,875