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Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Related Party Transaction [Line Items]
Due from related parties	$ 89		$ 93
NextEra Energy, Inc. [Member] | Management Services Agreement [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	1	$ 1
NEER | Emerald Breeze Holdings
Related Party Transaction [Line Items]
Notes payable	(90)		(90)
NEER | O&M Agreements and ASAs
Related Party Transaction [Line Items]
Capitalized Cost, Related Party	38	322
NEER | Cash Sweep and Credit Support Agreement [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	2	2
True-Up Amount, Related Party		$ 11
Due from related parties	$ 6		11
XPLR OpCo [Member] | 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	$ 51		$ 51
Payables Instrument Average Term	165 days
Due to related parties	$ 443
NextEra Energy Capital Holdings [Member] | Guarantees and Letters of Credit [Member]
Related Party Transaction [Line Items]
Total amount of letters of credit	$ 1,700

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