Commitments and Contingencies (Long-term Purchase Commitment) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
NEER Segment
Required capacity and/or minimum payments [Abstract]
Remainder of 2023	$ 3,445		$ 3,445
2024	2,565		2,565
2025	250		250
2026	175		175
2027	165		165
Thereafter	1,785		1,785
Commitment to invest	240		240
Joint Obligations Remainder Current Year	140		140
Joint Obligations Second Year	1,035		1,035
Joint Obligations Third Year	5		5
Joint Obligations Fourth Year	5		5
Joint Obligations Fifth Year	0		0
Joint Obligations After Fifth Year	0		0
Contract Group 1 [Member] \| NEER Segment
Long-term Purchase Commitment [Line Items]
Commitment amount included in capital expenditures	5,600		5,600
Mountain Valley Pipeline \| NEER Segment
Required capacity and/or minimum payments [Abstract]
Amounts from Required Capacity And/Or Minimum Payments, Annual Commitment	$ 70		$ 70
Mountain Valley Pipeline \| NEER Segment \| Natural Gas Transportation Agreement
Required capacity and/or minimum payments [Abstract]
Equity method investment, ownership percentage	32.20%		32.20%
Florida Power & Light Company
Required capacity and/or minimum payments [Abstract]
Remainder of 2023	$ 560		$ 560
2024	1,045		1,045
2025	1,045		1,045
2026	1,045		1,045
2027	955		955
Thereafter	8,575		8,575
Related Party Transaction, Amounts of Transaction	108	$ 107	210	$ 209
Florida Power & Light Company \| Sabal Trail and Florida Southeast Connection [Member] \| Natural Gas, Including Transportation And Storage, Contract Minimum Payments [Member]
Required capacity and/or minimum payments [Abstract]
Remainder of 2023	205		205
2024	410		410
2025	405		405
2026	400		400
2027	400		400
Thereafter	5,560		5,560
Florida Power & Light Company \| Consolidation, Eliminations [Member]
Required capacity and/or minimum payments [Abstract]
Related Party Transaction, Amounts of Transaction	$ 25	$ 26	$ 49	$ 51

Estimated Amounts from Required Capacity And/Or Minimum Payments, Annual Commitment

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- Definition

Commitment to invest in clean power and technology businesses.

+ References

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- Definition

Commitments included in planned capital expenditures

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Joint obligations of NEECH and NEER included in NEER amounts above due after the fifth year

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Joint obligations of NEECH and NEER included in the NEER amounts above due in the fourth year

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Joint Obligations of NEECH and NEER included in the NEER amounts above due in the remainder of the current year

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Joint Obligations of NEECH and NEER included in the NEER amounts above due in the second year

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Joint obligations of NEECH and NEER included in NEER amounts above due in the third year

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Required Capacity And Or Minimum Payments Abstract

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Estimated required capacity and/or minimum payments after the fifth year.

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Estimated required capacity and/or minimum payments for the fifth year.

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Estimated required capacity and/or minimum payments for the fourth year.

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Estimated required capacity and/or minimum payments for the second year.

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Estimated required capacity and/or minimum payments for the third year.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

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