Commitments and Contingencies (Long-term Purchase Commitment) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
NEER Segment
Required capacity and/or minimum payments [Abstract]
Remainder of 2024	$ 4,220
2025	1,685
2026	260
2027	245
2028	115
Thereafter	1,970
Commitment to invest	220
Joint Obligations Remainder Current Year	490
Joint Obligations Second Year	370
Joint Obligations Third Year	190
Contract Group 1 [Member] \| NEER Segment
Long-term Purchase Commitment [Line Items]
Commitment amount included in capital expenditures	$ 4,900
Mountain Valley Pipeline \| NEER Segment
Required capacity and/or minimum payments [Abstract]
Transportation Agreement, Term	20 years
Amounts from Required Capacity And/Or Minimum Payments, Annual Commitment	$ 70
Mountain Valley Pipeline \| NEER Segment \| Natural Gas Transportation Agreement
Required capacity and/or minimum payments [Abstract]
Equity method investment, ownership percentage	32.80%
Florida Power & Light Company
Required capacity and/or minimum payments [Abstract]
Remainder of 2024	$ 840
2025	1,110
2026	1,110
2027	1,005
2028	955
Thereafter	7,880
Related Party Transaction, Amounts of Transaction	102	$ 102
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 2024	305
2025	405
2026	400
2027	400
2028	400
Thereafter	5,160
Florida Power & Light Company \| Consolidation, Eliminations [Member]
Required capacity and/or minimum payments [Abstract]
Related Party Transaction, Amounts of Transaction	$ 24	$ 25

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

No definition available.

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- Definition

Commitment to invest in clean power and technology businesses.

+ References

No definition available.

+ Details

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- Definition

Commitments included in planned capital expenditures

+ References

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

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- Definition

Required Capacity And Or Minimum Payments Abstract

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

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+ Details

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- Definition

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

+ References

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- Definition

Estimated required capacity and/or minimum payments for the remainder of the current year.

+ References

No definition available.

+ Details

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

+ References

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

+ References

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- Definition

Transportation Agreement, Term

+ References

No definition available.

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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.

+ References

No definition available.

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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
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

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-Section 50
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-Publisher FASB
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