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Debt (Schedule of Debt Instruments) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Instrument [Line Items] |  |
Current portion of long-term debt | $ 6,633 | $ 1,785
Long-term debt, excluding current maturities | 55,256 | 50,960
Repayment prior to maturity | 6,633 |
FPL [Member] |  |
Debt Instrument [Line Items] |  |
Unamortized debt issuance costs and premium and discount | (203) | (191)
Total long-term debt | 21,002 | 18,510
Current portion of long-term debt | 1,547 | 536
Long-term debt, excluding current maturities | 19,455 | 17,974
Repayment prior to maturity | 1,547 |
FPL [Member] | First mortgage bonds - fixed [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 15,790 | $ 14,290
Weighted-average interest rate | 4.03% | 4.20%
FPL [Member] | Pollution control, solid waste disposal and industrial development revenue bonds - primary variable [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 1,366 | $ 1,407
Weighted-average interest rate | 3.20% | 0.15%
Variable rate tax exempt bonds | $ 1,334 |
FPL [Member] | Senior Unsecured Notes - Primarily Variable |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 4,042 | $ 2,697
Weighted-average interest rate | 3.99% | 1.37%
Floating rate notes that permit individual noteholders to require repayment prior to maturity | $ 1,327 |
FPL [Member] | Other long-term debt - primarily variable |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 7 | $ 307
Weighted-average interest rate | 7.90% | 0.82%
NEER [Member] |  |
Debt Instrument [Line Items] |  |
Unamortized debt issuance costs and premium and discount | $ (108) | $ (92)
Total long-term debt | 9,051 | 7,419
Current portion of long-term debt | 694 | 664
Long-term debt, excluding current maturities | 8,357 | 6,755
NEER [Member] | Senior secured limited-recourse term loans - variable [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 3,582 | $ 3,100
Weighted-average interest rate | 6.24% | 1.74%
NEER [Member] | Senior secured limited-recourse long-term loans - fixed |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 2,452 | $ 2,475
Weighted-average interest rate | 3.43% | 3.30%
NEER [Member] | Other Long-Term Debt - Primarily Variable [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 777 | $ 785
Weighted-average interest rate | 6.33% | 2.50%
Capital Holdings [Member] |  |
Debt Instrument [Line Items] |  |
Unamortized debt issuance costs and premium and discount | $ (135) | $ (120)
Total long-term debt | 31,836 | 26,816
Current portion of long-term debt | 4,392 | 585
Long-term debt, excluding current maturities | 27,444 | 26,231
Capital Holdings [Member] | Other long-term debt - primarily variable |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 675 | $ 1,245
Weighted-average interest rate | 5.02% | 0.64%
Capital Holdings [Member] | Other long-term debt - primarily fixed |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 164 | $ 186
Weighted-average interest rate | 0.92% | 0.92%
Capital Holdings [Member] | Debentures - fixed [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 17,865 | $ 10,990
Weighted-average interest rate | 2.99% | 2.21%
Capital Holdings [Member] | Debentures variable [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 2,200 | $ 3,850
Weighted-average interest rate | 4.14% | 0.56%
Capital Holdings [Member] | Debentures, related to NEE's equity units - fixed [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 6,500 | $ 6,000
Weighted-average interest rate | 2.28% | 1.46%
Capital Holdings [Member] | Junior subordinated debentures - primarily fixed [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 3,723 | $ 3,723
Weighted-average interest rate | 5.23% | 4.54%
Capital Holdings [Member] | Japanese yen denominated long-term debt - primarily variable |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 506 | $ 582
Weighted-average interest rate | 0.73% | 1.49%
Capital Holdings [Member] | Australian dollar denominated long-term debt - fixed [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 338 | $ 360
Weighted-average interest rate | 2.20% | 2.20%
NEET [Member] | Other long-term debt - primarily fixed | NEER [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 2,348 | $ 1,151
Weighted-average interest rate | 5.10% | 2.69%

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