Summary of Significant Accounting and Reporting Policies (Policies)	9 Months Ended
Sep. 30, 2022
Accounting Policies [Abstract]
Derivative Instruments	NEE and FPL use derivative instruments (primarily swaps, options, futures and forwards) to manage the physical and financial risks inherent in the purchase and sale of fuel and electricity, as well as interest rate and foreign currency exchange rate risk associated primarily with outstanding and expected future debt issuances and borrowings, and to optimize the value of NEER's power generation and gas infrastructure assets. NEE and FPL do not utilize hedge accounting for their cash flow and fair value hedges. With respect to commodities related to NEE's competitive energy business, NEER employs risk management procedures to conduct its activities related to optimizing the value of its power generation and gas infrastructure assets, providing full energy and capacity requirements services primarily to distribution utilities, and engaging in power and fuel marketing and trading activities to take advantage of expected future favorable price movements and changes in the expected volatility of prices in the energy markets. These risk management activities involve the use of derivative instruments executed within prescribed limits to manage the risk associated with fluctuating commodity prices. Transactions in derivative instruments are executed on recognized exchanges or via the OTC markets, depending on the most favorable credit terms and market execution factors. For NEER's power generation and gas infrastructure assets, derivative instruments are used to hedge all or a portion of the expected output of these assets. These hedges are designed to reduce the effect of adverse changes in the wholesale forward commodity markets associated with NEER's power generation and gas infrastructure assets. With regard to full energy and capacity requirements services, NEER is required to vary the quantity of energy and related services based on the load demands of the customers served. For this type of transaction, derivative instruments are used to hedge the anticipated electricity quantities required to serve these customers and reduce the effect of unfavorable changes in the forward energy markets. Additionally, NEER takes positions in energy markets based on differences between actual forward market levels and management's view of fundamental market conditions, including supply/demand imbalances, changes in traditional flows of energy, changes in short- and long-term weather patterns and anticipated regulatory and legislative outcomes. NEER uses derivative instruments to realize value from these market dislocations, subject to strict risk management limits around market, operational and credit exposure. Derivative instruments, when required to be marked to market, are recorded on NEE's and FPL's condensed consolidated balance sheets as either an asset or liability measured at fair value. At FPL, substantially all changes in the derivatives' fair value are deferred as a regulatory asset or liability until the contracts are settled, and, upon settlement, any gains or losses are passed through the fuel clause. For NEE's non-rate regulated operations, predominantly NEER, essentially all changes in the derivatives' fair value for power purchases and sales, fuel sales and trading activities are recognized on a net basis in operating revenues and the equity method investees' related activity is recognized in equity in earnings of equity method investees in NEE's condensed consolidated statements of income. Settlement gains and losses are included within the line items in the condensed consolidated statements of income to which they relate. Transactions for which physical delivery is deemed not to have occurred are presented on a net basis in the condensed consolidated statements of income. For commodity derivatives, NEE believes that, where offsetting positions exist at the same location for the same time, the transactions are considered to have been netted and therefore physical delivery has been deemed not to have occurred for financial reporting purposes. Settlements related to derivative instruments are recognized in net cash provided by operating activities in NEE's and FPL's condensed consolidated statements of cash flows. For interest rate and foreign currency derivative instruments, all changes in the derivatives' fair value, as well as the transaction gain or loss on foreign denominated debt, are recognized in interest expense and the equity method investees' related activity is recognized in equity in earnings of equity method investees in NEE's condensed consolidated statements of income.
Fair Value Measurements	Fair Value Measurements of Derivative Instruments – The fair value of assets and liabilities are determined using either unadjusted quoted prices in active markets (Level 1) or pricing inputs that are observable (Level 2) whenever that information is available and using unobservable inputs (Level 3) to estimate fair value only when relevant observable inputs are not available. NEE and FPL use several different valuation techniques to measure the fair value of assets and liabilities, relying primarily on the market approach of using prices and other market information for identical and/or comparable assets and liabilities for those assets and liabilities that are measured at fair value on a recurring basis. NEE's and FPL's assessment of the significance of any particular input to the fair value measurement requires judgment and may affect placement within the fair value hierarchy levels. Non-performance risk, including the consideration of a credit valuation adjustment, is also considered in the determination of fair value for all assets and liabilities measured at fair value. NEE and FPL measure the fair value of commodity contracts using a combination of market and income approaches utilizing prices observed on commodities exchanges and in the OTC markets, or through the use of industry-standard valuation techniques, such as option modeling or discounted cash flows techniques, incorporating both observable and unobservable valuation inputs. The resulting measurements are the best estimate of fair value as represented by the transfer of the asset or liability through an orderly transaction in the marketplace at the measurement date. Most exchange-traded derivative assets and liabilities are valued directly using unadjusted quoted prices. For exchange-traded derivative assets and liabilities where the principal market is deemed to be inactive based on average daily volumes and open interest, the measurement is established using settlement prices from the exchanges, and therefore considered to be valued using other observable inputs. NEE, through its subsidiaries, including FPL, also enters into OTC commodity contract derivatives. The majority of these contracts are transacted at liquid trading points, and the prices for these contracts are verified using quoted prices in active markets from exchanges, brokers or pricing services for similar contracts. NEE, through NEER, also enters into full requirements contracts, which, in most cases, meet the definition of derivatives and are measured at fair value. These contracts typically have one or more inputs that are not observable and are significant to the valuation of the contract. In addition, certain exchange and non-exchange traded derivative options at NEE have one or more significant inputs that are not observable, and are valued using industry-standard option models. In all cases where NEE and FPL use significant unobservable inputs for the valuation of a commodity contract, consideration is given to the assumptions that market participants would use in valuing the asset or liability. The primary input to the valuation models for commodity contracts is the forward commodity curve for the respective instruments. Other inputs include, but are not limited to, assumptions about market liquidity, volatility, correlation and contract duration as more fully described below in Significant Unobservable Inputs Used in Recurring Fair Value Measurements. In instances where the reference markets are deemed to be inactive or do not have transactions for a similar contract, the derivative assets and liabilities may be valued using significant other observable inputs and potentially significant unobservable inputs. In such instances, the valuation for these contracts is established using techniques including extrapolation from or interpolation between actively traded contracts, or estimated basis adjustments from liquid trading points. NEE and FPL regularly evaluate and validate the inputs used to determine fair value by a number of methods, consisting of various market price verification procedures, including the use of pricing services and multiple broker quotes to support the market price of the various commodities. In all cases where there are assumptions and models used to generate inputs for valuing derivative assets and liabilities, the review and verification of the assumptions, models and changes to the models are undertaken by individuals that are independent of those responsible for estimating fair value. NEE uses interest rate contracts and foreign currency contracts to mitigate and adjust interest rate and foreign currency exchange exposure related primarily to certain outstanding and expected future debt issuances and borrowings when deemed appropriate based on market conditions or when required by financing agreements. NEE estimates the fair value of these derivatives using an income approach based on a discounted cash flows valuation technique utilizing the net amount of estimated future cash inflows and outflows related to the agreements. Cash Equivalents and Restricted Cash Equivalents – NEE and FPL hold investments in money market funds. The fair value of these funds is estimated using a market approach based on current observable market prices. Special Use Funds and Other Investments – NEE and FPL hold primarily debt and equity securities directly, as well as indirectly through commingled funds. Substantially all directly held equity securities are valued at their quoted market prices. For directly held debt securities, multiple prices and price types are obtained from pricing vendors whenever possible, which enables cross-provider validations. A primary price source is identified based on asset type, class or issue of each security. Commingled funds, which are similar to mutual funds, are maintained by banks or investment companies and hold certain investments in accordance with a stated set of objectives. The fair value of commingled funds is primarily derived from the quoted prices in active markets of the underlying securities. Because the fund shares are offered to a limited group of investors, they are not considered to be traded in an active market. Fair Value Measurement Alternative – NEE holds investments in equity securities without readily determinable fair values, which are initially recorded at cost, of approximately $415 million and $72 million at September 30, 2022 and December 31, 2021, respectively, and are included in noncurrent other assets on NEE's condensed consolidated balance sheets. Adjustments to carrying values are recorded as a result of observable price changes in transactions for identical or similar investments of the same issuer.
Restricted Cash	Restricted Cash – At September 30, 2022 and December 31, 2021, NEE had approximately $1,459 million ($33 million for FPL) and $677 million ($53 million for FPL), respectively, of restricted cash, which is included in current other assets on NEE's and FPL's condensed consolidated balance sheets. Restricted cash is primarily related to debt service payments and margin cash collateral requirements at NEER and bond proceeds held for construction at FPL. In addition, where offsetting positions exist, restricted cash related to margin cash collateral of $261 million is netted against derivative assets and $1,258 million is netted against derivative liabilities at September 30, 2022 and $121 million is netted against derivative assets and $172 million is netted against derivative liabilities at December 31, 2021. See Note 2.
Disposal of Businesses/Assets and Sale of Noncontrolling Ownership Interests	Disposal of Businesses/Assets and Sale of Noncontrolling Ownership Interests – In September 2022, subsidiaries of NextEra Energy Resources completed the sale to a NEP subsidiary of a 67% controlling ownership interest in a battery storage facility in California with storage capacity of 230 MW, for cash proceeds of approximately $191 million, plus working capital and other adjustments of $3 million (subject to post-closing adjustments). A NextEra Energy Resources affiliate will continue to operate the facility included in the sale. In connection with the sale, a gain of approximately $87 million ($66 million after tax) was recorded in NEE's condensed consolidated statements of income for the three and nine months ended September 30, 2022 and is included in gains on disposal of businesses/assets – net. In December 2021, subsidiaries of NextEra Energy Resources sold their 100% ownership interest, comprised of a 50% controlling ownership interest to a NEP subsidiary and a 50% noncontrolling ownership interest to a third party, in a portfolio of seven wind generation facilities and six solar generation facilities representing a total generating capacity of 2,520 MW and 115 MW of battery storage capacity, three of which facilities were under construction. In connection with the three facilities that were under construction, approximately $668 million of cash received, which was subject to post-closing adjustments, was recorded as contract liabilities, which was included in current other liabilities on NEE’s condensed consolidated balance sheet at December 31, 2021. The three facilities achieved commercial operations during the first quarter of 2022 and approximately $551 million of contract liabilities were reversed and the sale of those facilities was recognized for accounting purposes. During the three months ended September 30, 2022, the IRA was enacted establishing a solar PTC (see Note 4) which substantially resolved the outstanding contingencies. Approximately $88 million of contract liabilities were reversed and a gain was recorded in NEE's condensed consolidated statements of income for the three and nine months ended September 30, 2022 which is included in gains on disposal of businesses/assets – net. The remaining contingencies are expected to be resolved in the fourth quarter of 2022. In addition, NextEra Energy Resources is responsible to pay for all construction costs related to the portfolio. At September 30, 2022 and December 31, 2021, approximately $142 million and $970 million, respectively, is included in accounts payable on NEE's condensed consolidated balance sheets and represents amounts owed by NextEra Energy Resources to NEP to reimburse NEP for construction costs.
Allowance for Doubtful Accounts	Credit Losses – NEE's credit department monitors current and forward credit exposure to counterparties and their affiliates. Prospective and existing customers are reviewed for creditworthiness based on established standards and credit quality indicators. Credit quality indicators and standards that are closely monitored include credit ratings, certain financial ratios and delinquency trends which are based off the latest available information. Customers not meeting minimum standards provide various credit enhancements or secured payment terms, such as letters of credit, the posting of margin cash collateral or use of master netting arrangements. For the nine months ended September 30, 2022 and 2021, NEE recorded approximately $85 million and $143 million of bad debt expense, including credit losses, respectively, which are included in O&M expenses in NEE’s condensed consolidated statements of income. The amounts recorded in 2021 primarily relate to credit losses at NEER driven by the operational and energy market impacts of the February 2021 weather event. The estimate for credit losses related to the impacts of the February 2021 weather event was developed based on NEE’s assessment of the ultimate collectability of these receivables under potential workout scenarios. At December 31, 2021, approximately $127 million of allowances were included in noncurrent other assets on NEE's condensed consolidated balance sheets related to the February 2021 weather event. During the three months ended June 30, 2022, the net receivable was settled.

Summary of Significant Accounting and Reporting Policies (Policies)

9 Months Ended

Sep. 30, 2022

NEE and FPL use derivative instruments (primarily swaps, options, futures and forwards) to manage the physical and financial risks inherent in the purchase and sale of fuel and electricity, as well as interest rate and foreign currency exchange rate risk associated primarily with outstanding and expected future debt issuances and borrowings, and to optimize the value of NEER's power generation and gas infrastructure assets. NEE and FPL do not utilize hedge accounting for their cash flow and fair value hedges.

With respect to commodities related to NEE's competitive energy business, NEER employs risk management procedures to conduct its activities related to optimizing the value of its power generation and gas infrastructure assets, providing full energy and capacity requirements services primarily to distribution utilities, and engaging in power and fuel marketing and trading activities to take advantage of expected future favorable price movements and changes in the expected volatility of prices in the energy markets. These risk management activities involve the use of derivative instruments executed within prescribed limits to manage the risk associated with fluctuating commodity prices. Transactions in derivative instruments are executed on recognized exchanges or via the OTC markets, depending on the most favorable credit terms and market execution factors. For NEER's power generation and gas infrastructure assets, derivative instruments are used to hedge all or a portion of the expected output of these assets. These hedges are designed to reduce the effect of adverse changes in the wholesale forward commodity markets associated with NEER's power generation and gas infrastructure assets. With regard to full energy and capacity requirements services, NEER is required to vary the quantity of energy and related services based on the load demands of the customers served. For this type of transaction, derivative instruments are used to hedge the anticipated electricity quantities required to serve these customers and reduce the effect of unfavorable changes in the forward energy markets. Additionally, NEER takes positions in energy markets based on differences between actual forward market levels and management's view of fundamental market conditions, including supply/demand imbalances, changes in traditional flows of energy, changes in short- and long-term weather patterns and anticipated regulatory and legislative outcomes. NEER uses derivative instruments to realize value from these market dislocations, subject to strict risk management limits around market, operational and credit exposure.

Derivative instruments, when required to be marked to market, are recorded on NEE's and FPL's condensed consolidated balance sheets as either an asset or liability measured at fair value. At FPL, substantially all changes in the derivatives' fair value are deferred as a regulatory asset or liability until the contracts are settled, and, upon settlement, any gains or losses are passed through the fuel clause. For NEE's non-rate regulated operations, predominantly NEER, essentially all changes in the derivatives' fair value for power purchases and sales, fuel sales and trading activities are recognized on a net basis in operating revenues and the equity method investees' related activity is recognized in equity in earnings of equity method investees in NEE's condensed consolidated statements of income. Settlement gains and losses are included within the line items in the condensed consolidated statements of income to which they relate. Transactions for which physical delivery is deemed not to have occurred are presented on a net basis in the condensed consolidated statements of income. For commodity derivatives, NEE believes that, where offsetting positions exist at the same location for the same time, the transactions are considered to have been netted and therefore physical delivery has been deemed not to have occurred for financial reporting purposes. Settlements related to derivative instruments are recognized in net cash provided by operating activities in NEE's and FPL's condensed consolidated statements of cash flows.

For interest rate and foreign currency derivative instruments, all changes in the derivatives' fair value, as well as the transaction gain or loss on foreign denominated debt, are recognized in interest expense and the equity method investees' related activity is recognized in equity in earnings of equity method investees in NEE's condensed consolidated statements of income.

Fair Value Measurements

Fair Value Measurements of Derivative Instruments – The fair value of assets and liabilities are determined using either unadjusted quoted prices in active markets (Level 1) or pricing inputs that are observable (Level 2) whenever that information is available and using unobservable inputs (Level 3) to estimate fair value only when relevant observable inputs are not available. NEE and FPL use several different valuation techniques to measure the fair value of assets and liabilities, relying primarily on the market approach of using prices and other market information for identical and/or comparable assets and liabilities for those assets and liabilities that are measured at fair value on a recurring basis. NEE's and FPL's assessment of the significance of any particular input to the fair value measurement requires judgment and may affect placement within the fair value hierarchy levels. Non-performance risk, including the consideration of a credit valuation adjustment, is also considered in the determination of fair value for all assets and liabilities measured at fair value.

NEE and FPL measure the fair value of commodity contracts using a combination of market and income approaches utilizing prices observed on commodities exchanges and in the OTC markets, or through the use of industry-standard valuation techniques, such as option modeling or discounted cash flows techniques, incorporating both observable and unobservable valuation inputs. The resulting measurements are the best estimate of fair value as represented by the transfer of the asset or liability through an orderly transaction in the marketplace at the measurement date.

Most exchange-traded derivative assets and liabilities are valued directly using unadjusted quoted prices. For exchange-traded derivative assets and liabilities where the principal market is deemed to be inactive based on average daily volumes and open interest, the measurement is established using settlement prices from the exchanges, and therefore considered to be valued using other observable inputs.

NEE, through its subsidiaries, including FPL, also enters into OTC commodity contract derivatives. The majority of these contracts are transacted at liquid trading points, and the prices for these contracts are verified using quoted prices in active markets from exchanges, brokers or pricing services for similar contracts.

NEE, through NEER, also enters into full requirements contracts, which, in most cases, meet the definition of derivatives and are measured at fair value. These contracts typically have one or more inputs that are not observable and are significant to the valuation of the contract. In addition, certain exchange and non-exchange traded derivative options at NEE have one or more significant inputs that are not observable, and are valued using industry-standard option models.

In all cases where NEE and FPL use significant unobservable inputs for the valuation of a commodity contract, consideration is given to the assumptions that market participants would use in valuing the asset or liability. The primary input to the valuation models for commodity contracts is the forward commodity curve for the respective instruments. Other inputs include, but are not limited to, assumptions about market liquidity, volatility, correlation and contract duration as more fully described below in Significant Unobservable Inputs Used in Recurring Fair Value Measurements. In instances where the reference markets are deemed to be inactive or do not have transactions for a similar contract, the derivative assets and liabilities may be valued using significant other observable inputs and potentially significant unobservable inputs. In such instances, the valuation for these contracts is established using techniques including extrapolation from or interpolation between actively traded contracts, or estimated basis adjustments from liquid trading points. NEE and FPL regularly evaluate and validate the inputs used to determine fair value by a number of methods, consisting of various market price verification procedures, including the use of pricing services and multiple broker quotes to support the market price of the various commodities. In all cases where there are assumptions and models used to generate inputs for valuing derivative assets and liabilities, the review and verification of the assumptions, models and changes to the models are undertaken by individuals that are independent of those responsible for estimating fair value.

NEE uses interest rate contracts and foreign currency contracts to mitigate and adjust interest rate and foreign currency exchange exposure related primarily to certain outstanding and expected future debt issuances and borrowings when deemed appropriate based on market conditions or when required by financing agreements. NEE estimates the fair value of these derivatives using an income approach based on a discounted cash flows valuation technique utilizing the net amount of estimated future cash inflows and outflows related to the agreements.

Cash Equivalents and Restricted Cash Equivalents – NEE and FPL hold investments in money market funds. The fair value of these funds is estimated using a market approach based on current observable market prices.

Special Use Funds and Other Investments – NEE and FPL hold primarily debt and equity securities directly, as well as indirectly through commingled funds. Substantially all directly held equity securities are valued at their quoted market prices. For directly held debt securities, multiple prices and price types are obtained from pricing vendors whenever possible, which enables cross-provider validations. A primary price source is identified based on asset type, class or issue of each security. Commingled funds, which are similar to mutual funds, are maintained by banks or investment companies and hold certain investments in accordance with a stated set of objectives. The fair value of commingled funds is primarily derived from the quoted prices in active markets of the underlying securities. Because the fund shares are offered to a limited group of investors, they are not considered to be traded in an active market.

Fair Value Measurement Alternative – NEE holds investments in equity securities without readily determinable fair values, which are initially recorded at cost, of approximately $415 million and $72 million at September 30, 2022 and December 31, 2021, respectively, and are included in noncurrent other assets on NEE's condensed consolidated balance sheets. Adjustments to carrying values are recorded as a result of observable price changes in transactions for identical or similar investments of the same issuer.

Restricted Cash

Restricted Cash – At September 30, 2022 and December 31, 2021, NEE had approximately $1,459 million ($33 million for FPL) and $677 million ($53 million for FPL), respectively, of restricted cash, which is included in current other assets on NEE's and FPL's condensed consolidated balance sheets. Restricted cash is primarily related to debt service payments and margin cash collateral requirements at NEER and bond proceeds held for construction at FPL. In addition, where offsetting positions exist, restricted cash related to margin cash collateral of $261 million is netted against derivative assets and $1,258 million is netted against derivative liabilities at September 30, 2022 and $121 million is netted against derivative assets and $172 million is netted against derivative liabilities at December 31, 2021. See Note 2.

Disposal of Businesses/Assets and Sale of Noncontrolling Ownership Interests

Disposal of Businesses/Assets and Sale of Noncontrolling Ownership Interests – In September 2022, subsidiaries of NextEra Energy Resources completed the sale to a NEP subsidiary of a 67% controlling ownership interest in a battery storage facility in California with storage capacity of 230 MW, for cash proceeds of approximately $191 million, plus working capital and other adjustments of $3 million (subject to post-closing adjustments). A NextEra Energy Resources affiliate will continue to operate the facility included in the sale. In connection with the sale, a gain of approximately $87 million ($66 million after tax) was recorded in NEE's condensed consolidated statements of income for the three and nine months ended September 30, 2022 and is included in gains on disposal of businesses/assets – net.

In December 2021, subsidiaries of NextEra Energy Resources sold their 100% ownership interest, comprised of a 50% controlling ownership interest to a NEP subsidiary and a 50% noncontrolling ownership interest to a third party, in a portfolio of seven wind generation facilities and six solar generation facilities representing a total generating capacity of 2,520 MW and 115 MW of battery storage capacity, three of which facilities were under construction. In connection with the three facilities that were under construction, approximately $668 million of cash received, which was subject to post-closing adjustments, was recorded as contract liabilities, which was included in current other liabilities on NEE’s condensed consolidated balance sheet at December 31, 2021. The three facilities achieved commercial operations during the first quarter of 2022 and approximately $551 million of contract liabilities were reversed and the sale of those facilities was recognized for accounting purposes. During the three months ended September 30, 2022, the IRA was enacted establishing a solar PTC (see Note 4) which substantially resolved the outstanding contingencies. Approximately $88 million of contract liabilities were reversed and a gain was recorded in NEE's condensed consolidated statements of income for the three and nine months ended September 30, 2022 which is included in gains on disposal of businesses/assets – net. The remaining contingencies are expected to be resolved in the fourth quarter of 2022. In addition, NextEra Energy Resources is responsible to pay for all construction costs related to the portfolio. At September 30, 2022 and December 31, 2021, approximately $142 million and $970 million, respectively, is included in accounts payable on NEE's condensed consolidated balance sheets and represents amounts owed by NextEra Energy Resources to NEP to reimburse NEP for construction costs.

Allowance for Doubtful Accounts

Credit Losses – NEE's credit department monitors current and forward credit exposure to counterparties and their affiliates. Prospective and existing customers are reviewed for creditworthiness based on established standards and credit quality indicators. Credit quality indicators and standards that are closely monitored include credit ratings, certain financial ratios and delinquency trends which are based off the latest available information. Customers not meeting minimum standards provide various credit enhancements or secured payment terms, such as letters of credit, the posting of margin cash collateral or use of master netting arrangements.

For the nine months ended September 30, 2022 and 2021, NEE recorded approximately $85 million and $143 million of bad debt expense, including credit losses, respectively, which are included in O&M expenses in NEE’s condensed consolidated statements of income. The amounts recorded in 2021 primarily relate to credit losses at NEER driven by the operational and energy market impacts of the February 2021 weather event. The estimate for credit losses related to the impacts of the February 2021 weather event was developed based on NEE’s assessment of the ultimate collectability of these receivables under

potential workout scenarios. At December 31, 2021, approximately $127 million of allowances were included in noncurrent other assets on NEE's condensed consolidated balance sheets related to the February 2021 weather event. During the three months ended June 30, 2022, the net receivable was settled.