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Summary of Significant Accounting and Reporting Policies - Additional Information (Details) $ in Millions	1 Months Ended	3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2021 USD ($) facility MW	Mar. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2022 USD ($) MW
Accounting Policies [Line Items]
Restricted Cash and Cash Equivalents	$ 677		$ 1,632
Restricted cash related to margin cash collateral that is netted against derivative instruments	121		673
restricted cash related to margin cash collateral that is netted against derivative liabilities	172		1,292
Customer deposits	485		497
Accrued construction-related expenditures	1,378		1,674
Bad debt expense, including credit losses			(67)	$ (146)
Noncurrent accounts receivable allowances	127
Florida Power & Light Company
Accounting Policies [Line Items]
Restricted Cash and Cash Equivalents	53		39
Customer deposits	478		490
Accrued construction-related expenditures	$ 601		501
Seven wind facilities, six solar facilities and storage capacity \| Disposed of by Sale [Member] \| Subsidiaries of NextEra Energy Resources \| United States, Geographically Dispersed
Accounting Policies [Line Items]
Number of wind generation facilities \| facility	7
Number of solar generation facilities \| facility	6
Number of facilities under construction \| facility	3
Generating capacity (MW) \| MW	2,520
Solar Plus Storage Facility Capacity \| MW	115
Seven wind facilities, six solar facilities and storage capacity \| Disposed of by Sale [Member] \| Subsidiaries of NextEra Energy Resources \| Subsidiaries of NextEra Energy Resources \| United States, Geographically Dispersed
Accounting Policies [Line Items]
Ownership percentage sold	100.00%
Seven wind facilities, six solar facilities and storage capacity \| Disposed of by Sale [Member] \| NextEra Energy Resources \| NEP \| United States, Geographically Dispersed
Accounting Policies [Line Items]
Ownership percentage sold	50.00%
Seven wind facilities, six solar facilities and storage capacity \| Disposed of by Sale [Member] \| NextEra Energy Resources \| Third Party \| United States, Geographically Dispersed
Accounting Policies [Line Items]
Ownership percentage sold	50.00%
Seven wind facilities, six solar facilities and storage capacity \| Disposed of by Sale [Member] \| NextEra Energy Resources \| Differential Memberships \| United States, Geographically Dispersed
Accounting Policies [Line Items]
Disposal of Business and Interest Affiliates, Contingent Payments	$ 117
Seven wind facilities, six solar facilities and storage capacity \| Disposed of by Sale [Member] \| Current other liabilities \| Subsidiaries of NextEra Energy Resources \| United States, Geographically Dispersed
Accounting Policies [Line Items]
Customer deposits	668
Contract with Customer, Liability, Revenue Recognized		$ 551
Seven wind facilities, six solar facilities and storage capacity \| Disposed of by Sale [Member] \| Accounts Payable
Accounting Policies [Line Items]
Accrued construction-related expenditures	$ 970		$ 279
Battery Storage Facility \| Disposed of by Sale [Member] \| NextEra Energy Resources \| California \| Forecast
Accounting Policies [Line Items]
Purchase price					$ 191
Solar Plus Storage Facility Capacity \| MW					230
Battery Storage Facility \| Disposed of by Sale [Member] \| NextEra Energy Resources \| NEP \| California \| Forecast
Accounting Policies [Line Items]
Ownership percentage sold					67.00%
Battery Storage Facility \| Disposed of by Sale [Member] \| NextEra Energy Partners \| Differential Memberships \| California \| Forecast
Accounting Policies [Line Items]
Noncontrolling interest in differential membership					$ 89