Acquisitions Acquisitions	12 Months Ended
Acquisitions Acquisitions	Dec. 31, 2021
Business Combinations [Abstract]
Acquisitions	Acquisitions Gulf Power Company – On January 1, 2019, NEE acquired the outstanding common shares of Gulf Power Company, a rate-regulated electric utility under the jurisdiction of the FPSC, which served approximately 470,000 customers in eight counties throughout northwest Florida, had approximately 9,500 miles of transmission and distribution lines and owned approximately 2,300 MW of net generating capacity. The purchase price included approximately $4.44 billion in cash consideration and the assumption of approximately $1.3 billion of Gulf Power debt. Under the acquisition method, the purchase price was allocated to the assets acquired and liabilities assumed on January 1, 2019 based on their fair value. The approval by the FPSC of Gulf Power's rates, which were intended to allow Gulf Power to collect from retail customers total revenues equal to Gulf Power's costs of providing service, including a reasonable rate of return on invested capital, was considered a fundamental input in measuring the fair value of Gulf Power's assets and liabilities and, as such, NEE concluded that the carrying values of all assets and liabilities recoverable through rates were representative of their fair values. As a result, NEE acquired assets of approximately $5.2 billion, primarily relating to property, plant and equipment of $4.0 billion and regulatory assets of $494 million, and assumed liabilities of approximately $3.4 billion, including $1.3 billion of long-term debt, $635 million of regulatory liabilities and $562 million of deferred income taxes. The excess of the purchase price over the fair value of assets acquired and liabilities assumed resulted in approximately $2.7 billion of goodwill which had been recognized on NEE's consolidated balance sheet. The goodwill arising from the transaction represents expected benefits from continued expansion of NEE's regulated businesses and the indefinite life of Gulf Power's service area franchise. Merger of FPL and Gulf Power Company – On January 1, 2021, FPL and Gulf Power Company merged, with FPL as the surviving entity. However, during 2021, FPL continued to be regulated as two separate ratemaking entities in the former service areas of FPL and Gulf Power. The FPL segment and Gulf Power continued to be separate operating segments of NEE, as well as FPL, through 2021. See Note 16. Effective January 1, 2022, FPL became regulated as one ratemaking entity with new unified rates and tariffs, and also became one operating segment of NEE. See Note 1 – Rate Regulation – Base Rates Effective January 2022 through December 2025. As a result of the merger, FPL acquired assets of approximately $6.7 billion, primarily relating to property, plant and equipment, net of approximately $4.9 billion and regulatory assets of $1.2 billion, and assumed liabilities of approximately $3.9 billion, including $1.8 billion of debt, primarily long-term debt, $729 million of deferred income taxes and $566 million of regulatory liabilities. Additionally, goodwill of approximately $2.7 billion and purchase accounting adjustments associated with the 2019 Gulf Power Company acquisition by NEE were transferred to FPL from Corporate and Other at NEE. Goodwill associated with the Gulf Power Company acquisition is reflected within Corporate and Other at FPL and, for impairment testing, is included in the Gulf Power reporting unit. The assets acquired and liabilities assumed by FPL were at carrying amounts as the merger was between entities under common control. Trans Bay Cable LLC – On July 16, 2019, a wholly owned subsidiary of NEET acquired the membership interests of Trans Bay Cable LLC (Trans Bay), which owns and operates a 53-mile, high-voltage direct current underwater transmission cable system in California extending from Pittsburg to San Francisco, with utility rates set by the FERC and revenues paid by the California Independent System Operator. The purchase price included approximately $670 million in cash consideration and the assumption of debt of approximately $422 million. Under the acquisition method, the purchase price was allocated to the assets acquired and liabilities assumed based on their fair value. The approval by the FERC of Trans Bay’s rates, which is intended to allow Trans Bay to collect total revenues equal to Trans Bay's costs for the development, financing, construction, operation and maintenance of Trans Bay, including a reasonable rate of return on invested capital, is considered a fundamental input in measuring the fair value of Trans Bay's assets and liabilities and, as such, NEE concluded that the carrying values of all assets and liabilities recoverable through rates are representative of their fair values. As a result, NEE acquired assets of approximately $703 million, primarily relating to property, plant and equipment, and assumed liabilities of approximately $643 million, primarily relating to long-term debt. The excess of the purchase price over the fair value of assets acquired and liabilities assumed resulted in approximately $610 million of goodwill which has been recognized on NEE's consolidated balance sheet, of which approximately $572 million is expected to be deductible for tax purposes. Goodwill associated with the Trans Bay acquisition is reflected within NEER and, for impairment testing, is included in the rate-regulated transmission reporting unit. The goodwill arising from the transaction represents expected benefits from continued expansion of NEE's regulated businesses. GridLiance – On March 31, 2021, a wholly owned subsidiary of NEET acquired GridLiance Holdco, LP and GridLiance GP, LLC (GridLiance), which owns and operates three FERC-regulated transmission utilities with approximately 700 miles of high-voltage transmission lines across six states, five in the Midwest and Nevada. The purchase price included approximately $502 million in cash consideration, and the assumption of approximately $175 million of debt, excluding post-closing adjustments. Under the acquisition method, the purchase price was allocated to the assets acquired and liabilities assumed based on their fair value. The approval by the FERC of GridLiance's rates, which is intended to allow GridLiance to collect total revenues equal to GridLiance's costs for the development, financing, construction, operation and maintenance of GridLiance, including a reasonable rate of return on invested capital, is considered a fundamental input in measuring the fair value of GridLiance's assets and liabilities and, as such, NEE concluded that the carrying values of all assets and liabilities recoverable through rates are representative of their fair values. As a result, NEE acquired assets of approximately $384 million, primarily relating to property, plant and equipment, and assumed liabilities of approximately $210 million, primarily relating to long-term debt. The acquisition agreements are subject to earn-out provisions for additional payments, valued at approximately $264 million at March 31, 2021, to be made upon the completion of capital expenditures for future development projects (see Note 4 – Contingent Consideration). The excess of the purchase price over the fair value of assets acquired and liabilities assumed resulted in approximately $592 million of goodwill which has been recognized on NEE's consolidated balance sheet at December 31, 2021, of which approximately $586 million is expected to be deductible for tax purposes. Goodwill associated with the GridLiance acquisition is reflected within NEER and, for impairment testing, is included in the rate-regulated transmission reporting unit. The goodwill arising from the transaction represents expected benefits from continued expansion of NEE's regulated businesses. The valuation of the acquired net assets is subject to change as additional information related to the estimates is obtained during the measurement period.