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Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2020
Jointly-Owned Electric Plants [Abstract] |
Proportionate Ownership Interest In Jointly-Owned Facilities | NEE's and FPL's proportionate ownership interest in jointly-owned facilities is as follows:
| December 31, 2020
| Ownership Interest |  | Gross Investment(a) |  | Accumulated Depreciation(a) |  | Construction Work in Progress
|  |  | (millions)
FPL: |  |  |  |  |  |  |
St. Lucie Unit No. 2 | 85 | % |  | $ | 2,260 |  |  | $ | 999 |  |  | $ | 47 |
Scherer Unit No. 4(b) | 76 | % |  | $ | 1,300 |  |  | $ | 502 |  |  | $ | 2 |
Gulf Power: |  |  |  |  |  |  |
Daniel Units Nos. 1 and 2 | 50 | % |  | $ | 718 |  |  | $ | 241 |  |  | $ | 39 |
Scherer Unit No. 3 | 25 | % |  | $ | 445 |  |  | $ | 168 |  |  | $ | 2 |
NEER:(c) |  |  |  |  |  |  |
Seabrook | 88.23 | % |  | $ | 1,290 |  |  | $ | 412 |  |  | $ | 53 |
Wyman Station Unit No. 4 | 91.19 | % |  | $ | 30 |  |  | $ | 9 |  |  | $ | 1 |
Stanton | 65 | % |  | $ | 138 |  |  | $ | 13 |  |  | $ | — |
Transmission substation assets located in Seabrook, New Hampshire | 88.23 | % |  | $ | 114 |  |  | $ | 9 |  |  | $ | 11 |
______________________ (a)Excludes nuclear fuel. (b)Together with its joint interest owner, and subject to certain approvals from the FPSC, FPL intends to retire this unit in early 2022. (c)NEER also owns an approximately 70% interest in Duane Arnold, a nuclear facility that ceased operations in August 2020.

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- Definition Jointly-Owned Electric Plants [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of proportionate interests in jointly owned utility plants. Includes the amount of plants in service, the accumulated provision for depreciation (if available), the amount of plants under construction, and the proportionate share. The amounts presented may be further subdivided to show amounts applicable to plant subcategories (for example, production, transmission, distribution). Includes statements that the amounts represent the utility's share in each joint plant and that it must provide its own financing. Information concerning two or more generating plants on the same site may be combined. States that the utility's share of direct expenses of the joint plants is included in the corresponding operating expenses on its income statement (for example, fuel, maintenance of plant, other operating expense). If the share of direct expenses is charged to purchased power, then disclose the amount so charged and the proportionate amounts charged to specific operating expenses on the records maintained for the joint plants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 10.C) -URI http://asc.fasb.org/extlink&oid=115995737&loc=d3e659983-123033 + Details
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