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Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2024
Asset Retirement Obligations [Abstract]  
Asset retirement obligation, roll forward analysis
A rollforward of NEE's and FPL's AROs is as follows:
NEEFPL
(millions)
Balances, December 31, 2022$3,328 $2,176 
Liabilities incurred100 — 
Accretion expense154 84 
Liabilities settled(90)
(a)
(66)
Revision in estimated cash flows – net
(55)(24)
Balances, December 31, 20233,437 
(b)
2,170 
(b)
Liabilities incurred157 56 
Accretion expense165 87 
Liabilities settled(75)
(a)
(31)
Revision in estimated cash flows – net
14 13 

Balances, December 31, 2024$3,698 
(b)
$2,295 
(b)
______________________
(a)Includes approximately $39 million and $18 million related to sales of businesses and assets during the years ending December 31, 2024 and 2023, respectively. See Note 1 – Disposal of Businesses/Assets.
(b)Includes the current portion of AROs as of December 31, 2024 and 2023 of approximately $27 million ($19 million for FPL) and $34 million ($27 million for FPL), respectively, which are included in current other liabilities on NEE's and FPL's consolidated balance sheets.
Funds restricted for decommissioning included in special use funds
Restricted funds for the payment of future expenditures to decommission NEE's and FPL's nuclear units included in special use funds on NEE's and FPL's consolidated balance sheets are presented below (see Note 4). Duane Arnold is in a deferred decommissioning and was granted an exemption from the NRC, which allows for use of the funds for certain other site restoration activities in addition to decommissioning obligations recorded as AROs.
NEEFPL
(millions)
Balances, December 31, 2024$9,799 $6,874 
Balances, December 31, 2023$8,697 $6,049