Income Taxes - Components of Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Federal:
Current	$ 208	$ 507	$ 11
Deferred	(150)	368	497
Total federal	58	875	508
State:
Current	126	161	41
Deferred	155	(30)	37
Total state	281	131	78
Total income taxes	339	1,006	586
FPL [Member]
Federal:
Current	252	990	3
Deferred	422	(179)	684
Total federal	674	811	687
State:
Current	116	294	2
Deferred	180	18	258
Total state	296	312	260
Total income taxes	$ 970	$ 1,123	$ 947