Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2021

Asset Retirement Obligations [Abstract]

Asset retirement obligation, roll forward analysis

A rollforward of NEE's and FPL's AROs is as follows:

	NEE			FPL
	(millions)
Balances, December 31, 2019	$	3,506		$	2,410
Liabilities incurred	138			—
Accretion expense	169			103
Liabilities settled	(53)			(32)
Revision in estimated cash flows – net	(594)		(a)	(545)		(a)
Balances, December 31, 2020	3,166		(b)	1,936		(b)
Liabilities incurred	79			7
Accretion expense	141			78
Liabilities settled	(88)		(c)	(15)
Revision in estimated cash flows – net	(119)		(d)	101		(e)
Balances, December 31, 2021	$	3,179	(b)	$	2,107	(b)

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(a)Primarily reflects the effect of revised cost estimates for decommissioning FPL's nuclear units consistent with the updated nuclear decommissioning studies filed with the FPSC in December 2020.

(b)Includes the current portion of AROs as of December 31, 2021 and 2020 of approximately $97 million ($58 million for FPL) and $109 million ($65 million for FPL), respectively, which are included in other current liabilities on NEE's and FPL's consolidated balance sheets.

(c)Includes approximately $35 million related to project sales to NEP as well as other sales of businesses and assets. See Note 1 – Disposal of Businesses/Assets and Sale of Noncontrolling Ownership Interests.

(d)The increase at FPL discussed in (e) was offset primarily by the effect of revised cost estimates and useful lives of NEER's solar facilities.

(e)Primarily reflects the effect of pending license extension requests of St. Lucie Units Nos. 1 and 2 for an additional 20 years.

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 – Special Use Funds). Duane Arnold is being actively decommissioned 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.

	NEE		FPL
	(millions)
Balances, December 31, 2021	$	8,846	$	6,082
Balances, December 31, 2020	$	7,703	$	5,271