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Debt - Long-term Debt Issuances and Borrowings (Details) | 6 Months Ended
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Jun. 30, 2019 USD ($)
FPL [Member] | First mortgage bonds [Member] |
Debt Instrument [Line Items] |
Principal Amount | $ 600,000,000
Interest Rate (as a percent) | 3.99%
FPL [Member] | Senior Unsecured Notes [Member] |
Debt Instrument [Line Items] |
Principal Amount | $ 1,000,000,000
Interest Rate Terms | Variable
NextEra Energy Capital Holdings, Inc. [Member] | Debentures variable [Domain] |
Debt Instrument [Line Items] |
Principal Amount | $ 550,000,000
Interest Rate Terms | Variable
NextEra Energy Capital Holdings, Inc. [Member] | Debentures [Member] |
Debt Instrument [Line Items] |
Principal Amount | $ 3,500,000,000
NextEra Energy Capital Holdings, Inc. [Member] | Junior Subordinated Debentures 5.65% Due 2079 [Member] | Junior Subordinated Debt [Member] |
Debt Instrument [Line Items] |
Principal Amount | $ 1,188,000,000
Interest Rate (as a percent) | 5.65%
NextEra Energy Capital Holdings, Inc. [Member] | Other long-term debt - variable [Member] |
Debt Instrument [Line Items] |
Principal Amount | $ 500,000,000
Interest Rate Terms | Variable
NextEra Energy Capital Holdings, Inc. [Member] | Junior Subordinated Debentures Variable Rate Due 2079 [Member] | Junior Subordinated Debt [Member] |
Debt Instrument [Line Items] |
Principal Amount | $ 500,000,000
NextEra Energy Capital Holdings, Inc. [Member] | Minimum [Member] | Debentures [Member] |
Debt Instrument [Line Items] |
Interest Rate (as a percent) | 2.90%
NextEra Energy Capital Holdings, Inc. [Member] | Maximum [Member] | Debentures [Member] |
Debt Instrument [Line Items] |
Interest Rate (as a percent) | 3.50%

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- 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=114775744&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
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- 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=6877327&loc=d3e13212-122682 + Details
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