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Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Related Party Transaction [Line Items]
Due from related parties	$ 82		$ 82		$ 93
Accounts payable and accrued expenses	44		44		58
NextEra Energy, Inc. [Member] \| Management Services Agreement [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	(2)	$ (3)	(4)	$ (4)
NEER \| Emerald Breeze Holdings
Related Party Transaction [Line Items]
Notes payable	(90)		(90)		(90)
NEER \| O&M Agreements and ASAs
Related Party Transaction [Line Items]
Capitalized Cost, Related Party	13	203	51	525
NEER \| Cash Sweep and Credit Support Agreement [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	(3)	(3)	(5)	$ (5)
True-Up Amount, Related Party		$ 11
Due from related parties	2		$ 2		11
XPLR OpCo \| NextEra Energy, Inc. [Member] \| Management Services Agreement [Member]
Related Party Transaction [Line Items]
Management fee, percent of EBITDA			1.00%
Annual management fee			$ 4
Related Party Transaction, Additional Management Fee, Threshold, Prior Year EBITDA			4
NEER \| Repowering Wind Prjects
Related Party Transaction [Line Items]
Due to related parties	35		$ 35		23
Payables Instrument Average Term			150 days
Accounts payable and accrued expenses	246		$ 246
Due to related parties	39		39		$ 51
NextEra Energy Capital Holdings [Member] \| Guarantees and Letters of Credit [Member]
Related Party Transaction [Line Items]
Total amount of letters of credit	$ 1,800		$ 1,800