Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Schedule of Investments [Line Items]
Other	$ 8,124		$ 7,704
Guarantor obligations, current carrying value	480
NextEra Energy Partners
Schedule of Investments [Line Items]
Guarantor obligations, current carrying value	2,000
Debt instrument, fair value disclosure	59
NEER [Member]
Schedule of Investments [Line Items]
Related party services	152	$ 233
Cash Sweep And Credit Support Agreement [Member] | NEER [Member]
Schedule of Investments [Line Items]
Fee income	3	$ 44
Other Receivables	61		84
Other	138		114
Cash Sweep And Credit Support Agreement [Member] | NEER [Member] | NextEra Energy Partners
Schedule of Investments [Line Items]
Accounts Payable, Other	$ 1,443		$ 1,511