XML 112 R77.htm IDEA: XBRL DOCUMENT
v3.20.4

Debt (Narrative) (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2020 | Feb. 29, 2020 | Sep. 30, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Aug. 31, 2019 | Aug. 31, 2018
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Weighted-average interest rate of commercial paper and short-tem borrowings (in hundredths) |  |  |  |  |  | 0.35% | 1.95% |  |
Line of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Available capacity |  |  |  |  |  | $ 11,900,000,000 |  |  |
Letter of Credit [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Available capacity |  |  |  |  |  | 65,000,000 |  |  |
Revolving Credit Facility [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Available capacity |  |  |  |  |  | 11,800,000,000 |  |  |
Revolving Credit Facility, Issuance of Letters of Credit [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Available capacity |  |  |  |  |  | $ 2,000,000,000.0 |  |  |
FPL[Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Weighted-average interest rate of commercial paper and short-tem borrowings (in hundredths) |  |  |  |  |  | 0.17% | 1.80% |  |
FPL[Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Available capacity |  |  |  |  |  | $ 3,600,000,000 |  |  |
FPL[Member] | Letter of Credit [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Available capacity |  |  |  |  |  | 0 |  |  |
FPL[Member] | Revolving Credit Facility [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Available capacity |  |  |  |  |  | 3,600,000,000 |  |  |
FPL[Member] | Revolving Credit Facility, Issuance of Letters of Credit [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Available capacity |  |  |  |  |  | $ 572,000,000 |  |  |
NEE Equity Units February 2020 [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Amount of equity units sold |  | $ 2,500,000,000 |  |  |  |  |  |  |
Stated amount of each equity unit (in dollars per share) |  | $ 50 |  |  |  |  |  |  |
Undivided beneficial ownership interest per debenture (in hundredths) |  | 5.00% |  |  |  |  |  |  |
Principal amount of each debenture |  | $ 1,000 |  |  |  |  |  |  |
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares) |  |  |  |  |  | 0.7092 |  |  |
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares) |  |  |  |  |  | 0.5672 |  |  |
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock |  | 20 days |  |  |  |  |  |  |
Rate of total annual distributions on equity units (in hundredths) |  |  |  |  |  | 5.279% |  |  |
Interest rate |  |  |  |  |  | 1.84% |  |  |
Rate of payments on stock purchase contracts (in hundredths) |  |  |  |  |  | 3.439% |  |  |
NEE Equity Units February 2020 [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
The Adjusted Reference Price (in dollars per share) |  |  |  |  |  | $ 70.51 |  |  |
NEE Equity Units February 2020 [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Adjusted Threshold Appreciation Price |  |  |  |  |  | $ 88.14 |  |  |
NEE Equity Units September 2020 [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Amount of equity units sold | $ 2,000,000,000.0 |  |  |  |  |  |  |  |
Stated amount of each equity unit (in dollars per share) | $ 50 |  |  |  |  |  |  |  |
Undivided beneficial ownership interest per debenture (in hundredths) | 5.00% |  |  |  |  |  |  |  |
Principal amount of each debenture | $ 1,000 |  |  |  |  |  |  |  |
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares) |  |  |  |  |  | 0.6764 |  |  |
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares) |  |  |  |  |  | 0.5412 |  |  |
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock | 20 days |  |  |  |  |  |  |  |
Rate of total annual distributions on equity units (in hundredths) |  |  |  |  |  | 6.219% |  |  |
Interest rate |  |  |  |  |  | 0.509% |  |  |
Rate of payments on stock purchase contracts (in hundredths) |  |  |  |  |  | 5.71% |  |  |
NEE Equity Units September 2020 [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
The Adjusted Reference Price (in dollars per share) |  |  |  |  |  | $ 73.93 |  |  |
NEE Equity Units September 2020 [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Adjusted Threshold Appreciation Price |  |  |  |  |  | $ 92.41 |  |  |
NEE Equity Units September 2019 [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Amount of equity units sold |  |  | $ 1,500,000,000 | $ 1,500,000,000 |  |  |  |  |
Stated amount of each equity unit (in dollars per share) |  |  | $ 50 | $ 50 |  |  |  |  |
Undivided beneficial ownership interest per debenture (in hundredths) |  |  | 5.00% | 5.00% |  |  |  |  |
Principal amount of each debenture |  |  | $ 1,000 | $ 1,000 |  |  |  |  |
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares) |  |  |  |  |  | 0.8940 |  |  |
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares) |  |  |  |  |  | 0.7156 |  |  |
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock |  |  | 20 days |  |  |  |  |  |
Rate of total annual distributions on equity units (in hundredths) |  |  |  |  |  | 4.872% |  |  |
Interest rate |  |  |  |  |  | 2.10% |  |  |
Rate of payments on stock purchase contracts (in hundredths) |  |  |  |  |  | 2.772% |  |  |
NEE Equity Units September 2019 [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
The Adjusted Reference Price (in dollars per share) |  |  |  |  |  | $ 55.93 |  |  |
NEE Equity Units September 2019 [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Adjusted Threshold Appreciation Price |  |  |  |  |  | $ 69.91 |  |  |
Series H Debentures Due September 1, 2020 [Member] | NextEra Energy Capital Holdings, Inc. [Member] | Debentures [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  | 3.342%
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | $ 700,000,000
Series I Debentures Due September 1, 2021 [Member] | NextEra Energy Capital Holdings, Inc. [Member] | Debentures [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  | 2.403% |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 1,500,000,000 |
September 2015 Equity Units Stock Split [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  |  |  | 6,200,000 | 24,900,000 |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  |  | $ 700,000,000 |  |  |  |
August 2016 Equity Units Stock Split [Member] |  |  |  |  |  |  |  |  |
Sale of equity units [Abstract] |  |  |  |  |  |  |  |  |
Sale of Stock, Number of Shares Issued in Transaction |  |  |  | 9,500,000 |  | 38,200,000 |  |  |
Sale of Stock, Consideration Received on Transaction |  |  |  | $ 1,500,000,000 |  |  |  |  |

X
- Definition Adjusted Threshold Appreciation Price + References No definition available. + Details
Name: | nee_AdjustedThresholdAppreciationPrice
Namespace Prefix: | nee_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of equity units sold. + References No definition available. + Details
Name: | nee_AmountOfEquityUnitsSold
Namespace Prefix: | nee_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of shares (subject to antidilution adjustments) if purchased on the final settlement date, if the market value of a share of common stock is equal to or greater than the high range of the price per share of the stock purchase contract. + References No definition available. + Details
Name: | nee_NumberOfSharesSubjectToAntidilutionAdjustmentsIfPurchasedOnFinalSettlementDateAtEqualToOrGreaterThanHighRangeThreshold
Namespace Prefix: | nee_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares (subject to antidilution adjustments) if purchased on the final settlement date, if the market value of a share of common stock is less than or equal to the low range of the price per share of the stock purchase contract. + References No definition available. + Details
Name: | nee_NumberOfSharesSubjectToAntidilutionAdjustmentsIfPurchasedOnFinalSettlementDateAtLessThanOrEqualToLowRangeThreshold
Namespace Prefix: | nee_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Principal amount of each debenture at time of issuance. + References No definition available. + Details
Name: | nee_PrincipalAmountOfEachDebenture
Namespace Prefix: | nee_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Rate of payments on stock purchase contracts. + References No definition available. + Details
Name: | nee_RateOfPaymentsOnStockPurchaseContracts
Namespace Prefix: | nee_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Rate of total annual distributions on equity units. + References No definition available. + Details
Name: | nee_RateOfTotalAnnualDistributionsOnEquityUnits
Namespace Prefix: | nee_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | nee_SaleOfEquityUnitsAbstract
Namespace Prefix: | nee_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Stated amount of each equity unit sold. + References No definition available. + Details
Name: | nee_StatedAmountOfEachEquityUnit
Namespace Prefix: | nee_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The Adjusted Reference Price + References No definition available. + Details
Name: | nee_TheAdjustedReferencePrice
Namespace Prefix: | nee_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The trading period (in days) over which the market value is determined by reference to the average closing prices of NextEra common stock. + References No definition available. + Details
Name: | nee_TradingPeriodOverWhichMarketValueIsDeterminedByReferenceToAverageClosingPricesOfCommonStock
Namespace Prefix: | nee_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the undivided beneficial ownership interest per debenture, included with a contract to purchase common stock, for each equity unit sold. + References No definition available. + Details
Name: | nee_UndividedBeneficialOwnershipInterestPerDebenture
Namespace Prefix: | nee_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Cash received on stock transaction after deduction of issuance costs. + References No definition available. + Details
Name: | us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average interest rate of short-term debt outstanding calculated at point in time. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ShortTermDebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=nee_RevolvingCreditFacilityIssuanceofLettersofCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=nee_FloridaPowerLightCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | nee_EquityUnitsAxis=nee_NEEEquityUnitsFebruary2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | nee_EquityUnitsAxis=nee_NEEEquityUnitsSeptember2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | nee_EquityUnitsAxis=nee_NEEEquityUnitsSeptember2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nee_SeriesHDebenturesDueSeptember12020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=nee_NextEraEnergyCapitalHoldingsInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=nee_DebenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nee_SeriesIDebenturesDueSeptember12021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=nee_September2015EquityUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=nee_August2016EquityUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |