Equity (Additional Disclosures Regarding Common and Preferred Stock) (Details) |
Dec. 31, 2020
$ / shares
shares
|
|---|---|
| NextEra Energy [Member] | Serial Preferred Stock [Member] | |
| Preferred stock [Abstract] | |
| Authorized (in shares) | 100,000,000 |
| Par value (in dollars per share) | $ / shares | $ 0.01 |
| Outstanding (in shares) | 0 |
| Preferred Stock, $100 Par Value [Member] | FPL [Member] | |
| Preferred stock [Abstract] | |
| Authorized (in shares) | 10,414,100 |
| Par value (in dollars per share) | $ / shares | $ 100 |
| Preferred Stock, No Par Value [Member] | FPL [Member] | |
| Preferred stock [Abstract] | |
| Authorized (in shares) | 5,000,000 |
| Par value (in dollars per share) | $ / shares | $ 0 |
| Outstanding (in shares) | 0 |
| Preferred Stock, No Par Value [Member] | FPL [Member] | Subordinated Preferred Stock [Member] | |
| Preferred stock [Abstract] | |
| Authorized (in shares) | 5,000,000 |
| Par value (in dollars per share) | $ / shares | $ 0 |
| Outstanding (in shares) | 0 |