Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Deferred tax liabilities:
Property-related	$ 11,558	$ 10,910
Pension	637	609
Investments in partnerships and joint ventures	2,534	2,459
Other	2,168	2,126
Total deferred tax liabilities	16,897	16,104
Deferred tax assets and valuation allowance:
Decommissioning reserves	307	314
Net operating loss carryforwards	233	262
Tax credit carryforwards	3,057	3,674
ARO and accrued asset removal costs	233	227
Regulatory liabilities	1,153	1,237
Other	652	714
Valuation allowance	(266)	(240)
Net deferred tax assets	5,369	6,188
Net deferred income taxes	11,528	9,916
Deferred tax assets and liabilities included in the consolidated balance sheets [Abstract]
Noncurrent other assets	221	226
Deferred income taxes – noncurrent liabilities	(11,749)	(10,142)
Net deferred income taxes	(11,528)	(9,916)
FPL [Member]
Deferred tax liabilities:
Property-related	9,272	8,563
Pension	495	470
Investments in partnerships and joint ventures	3	3
Other	1,463	1,431
Total deferred tax liabilities	11,233	10,467
Deferred tax assets and valuation allowance:
Decommissioning reserves	331	314
Net operating loss carryforwards	0	2
Tax credit carryforwards	0	0
ARO and accrued asset removal costs	116	111
Regulatory liabilities	1,129	1,212
Other	219	288
Valuation allowance	0	0
Net deferred tax assets	1,795	1,927
Net deferred income taxes	9,438	8,540
Deferred tax assets and liabilities included in the consolidated balance sheets [Abstract]
Noncurrent other assets	0	2
Deferred income taxes – noncurrent liabilities	(9,438)	(8,542)
Net deferred income taxes	$ (9,438)	$ (8,540)