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Summary of Significant Accounting and Reporting Policies
12 Months Ended
Dec. 31, 2014
Summary of Significant Accounting and Reporting Policies [Abstract]  
Summary of Significant Accounting and Reporting Policies
Summary of Significant Accounting and Reporting Policies

Basis of Presentation - The operations of NextEra Energy, Inc. (NEE) are conducted primarily through its wholly-owned subsidiary Florida Power & Light Company (FPL) and its wholly-owned indirect subsidiary NextEra Energy Resources, LLC (NEER). FPL, a rate-regulated electric utility, supplies electric service to approximately 4.7 million customer accounts throughout most of the east and lower west coasts of Florida. NEER invests in independent power projects through both controlled and consolidated entities and non-controlling ownership interests in joint ventures essentially all of which are accounted for under the equity method.

The consolidated financial statements of NEE and FPL include the accounts of their respective majority-owned and controlled subsidiaries. Intercompany balances and transactions have been eliminated in consolidation. Certain amounts included in prior years' consolidated financial statements have been reclassified to conform to the current year's presentation. The preparation of financial statements requires the use of estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities. Actual results could differ from those estimates.

NextEra Energy Partners, LP - NEE, through NEER, formed NextEra Energy Partners, LP (NEP) to acquire, manage and own contracted clean energy projects with stable, long-term cash flows through a limited partnership interest in NextEra Energy Operating Partners, LP (NEP OpCo). On July 1, 2014, NEP closed its initial public offering (IPO) by issuing 18,687,500 common units representing limited partnership interests. The proceeds from the sale of the common units, net of underwriting discounts, commissions and structuring fees, were approximately $438 million. NEP used such proceeds to purchase 18,687,500 common units of NEP OpCo, of which approximately $288 million was used to purchase common units from an indirect wholly-owned subsidiary of NEE and $150 million was used to purchase common units from NEP OpCo. Through an indirect wholly-owned subsidiary, NEE retained 74,440,000 units of NEP OpCo representing a 79.9% interest in NEP's operating projects. Additionally, NEE owns a controlling general partnership interest in NEP and consolidates this entity for financial reporting purposes and presents NEP's limited partnership interest as a noncontrolling interest in NEE's consolidated financial statements. The IPO resulted in a deferred gain of approximately $299 million which is reflected in noncurrent other liabilities on NEE's consolidated balance sheet at December 31, 2014. Upon completion of the IPO, NEP, through NEER's contribution of energy projects to NEP OpCo, owned a portfolio of ten wind and solar projects with generation capacity totaling approximately 990 megawatts (MW).

Regulation - FPL is subject to rate regulation by the Florida Public Service Commission (FPSC) and the Federal Energy Regulatory Commission (FERC). Its rates are designed to recover the cost of providing electric service to its customers including a reasonable rate of return on invested capital. As a result of this cost-based regulation, FPL follows the accounting guidance that allows regulators to create assets and impose liabilities that would not be recorded by non-rate regulated entities. Regulatory assets and liabilities represent probable future revenues that will be recovered from or refunded to customers through the ratemaking process.

Cost recovery clauses, which are designed to permit full recovery of certain costs and provide a return on certain assets allowed to be recovered through the various clauses, include substantially all fuel, purchased power and interchange costs, certain construction-related costs for FPL's planned additional nuclear units at Turkey Point and FPL's solar generating facilities, and conservation and certain environmental-related costs. Revenues from cost recovery clauses are recorded when billed; FPL achieves matching of costs and related revenues by deferring the net underrecovery or overrecovery. Any underrecovered costs or overrecovered revenues are collected from or returned to customers in subsequent periods.

If FPL were no longer subject to cost-based rate regulation, the existing regulatory assets and liabilities would be written off unless regulators specify an alternative means of recovery or refund. In addition, the FPSC has the authority to disallow recovery of costs that it considers excessive or imprudently incurred. The continued applicability of regulatory accounting is assessed at each reporting period.

Revenues and Rates - FPL's retail and wholesale utility rate schedules are approved by the FPSC and the FERC, respectively. FPL records unbilled base revenues for the estimated amount of energy delivered to customers but not yet billed. FPL's unbilled base revenues are included in customer receivables on NEE's and FPL's consolidated balance sheets and amounted to approximately $223 million and $200 million at December 31, 2014 and 2013, respectively. FPL's operating revenues also include amounts resulting from cost recovery clauses (see Regulation above), franchise fees, gross receipts taxes and surcharges related to storm-recovery bonds (see Note 8 - FPL). Franchise fees and gross receipts taxes are imposed on FPL; however, the FPSC allows FPL to include in the amounts charged to customers the amount of the gross receipts tax for all customers and the franchise amount for those customers located in the jurisdiction that imposes the fee. Accordingly, franchise fees and gross receipts taxes are reported gross in operating revenues and taxes other than income taxes and other in NEE's and FPL's consolidated statements of income and were approximately $716 million, $680 million and $684 million in 2014, 2013 and 2012, respectively. The revenues from the surcharges related to storm-recovery bonds included in operating revenues in NEE's and FPL's consolidated statements of income were approximately $109 million, $108 million and $106 million in 2014, 2013 and 2012, respectively. FPL also collects municipal utility taxes which are reported gross in customer receivables and accounts payable on NEE's and FPL's consolidated balance sheets.

FPL Rates Effective January 2013 - December 2016 - In January 2013, the FPSC issued a final order approving a stipulation and settlement between FPL and several intervenors in FPL's base rate proceeding (2012 rate agreement). Key elements of the 2012 rate agreement, which is effective from January 2013 through December 2016, include, among other things, the following:

New retail base rates and charges were established in January 2013 resulting in an increase in retail base revenues of $350 million on an annualized basis.
FPL's allowed regulatory return on common equity (ROE) is 10.50%, with a range of plus or minus 100 basis points. If FPL's earned regulatory ROE falls below 9.50%, FPL may seek retail base rate relief. If the earned regulatory ROE rises above 11.50%, any party to the 2012 rate agreement other than FPL may seek a review of FPL's retail base rates.
Retail base rates will be increased by the annualized base revenue requirements for FPL's three modernization projects (Cape Canaveral, Riviera Beach and Port Everglades) as each of the modernized power plants becomes operational. (Cape Canaveral and Riviera Beach became operational in April 2013 and April 2014, respectively, and Port Everglades is expected to be operational by mid-2016.)
Cost recovery of FPL's West County Energy Center (WCEC) Unit No. 3 will continue to occur through the capacity cost recovery clause (capacity clause) (reported as retail base revenues); however, such recovery will not be limited to the projected annual fuel cost savings as was the case in the previous rate agreement discussed below.
Subject to certain conditions, FPL may amortize, over the term of the 2012 rate agreement, a depreciation reserve surplus remaining at the end of 2012 under the 2010 rate agreement discussed below (approximately $224 million) and may amortize a portion of FPL's fossil dismantlement reserve up to a maximum of $176 million (collectively, the reserve), provided that in any year of the 2012 rate agreement, FPL must amortize at least enough reserve to maintain a 9.50% earned regulatory ROE but may not amortize any reserve that would result in an earned regulatory ROE in excess of 11.50%.
Future storm restoration costs would be recoverable on an interim basis beginning 60 days from the filing of a cost recovery petition, but capped at an amount that could produce a surcharge of no more than $4 for every 1,000 kilowatt-hours (kWh) of usage on residential bills during the first 12 months of cost recovery. Any additional costs would be eligible for recovery in subsequent years. If storm restoration costs exceed $800 million in any given calendar year, FPL may request an increase to the $4 surcharge to recover the amount above $800 million.
An incentive mechanism whereby customers will receive 100% of certain gains, including but not limited to, gains from the purchase and sale of electricity and natural gas (including transportation and storage), up to a specified threshold. The gains exceeding that specified threshold will be shared by FPL and its customers.

FPL Rates Effective March 2010 - December 2012 - Effective March 1, 2010, pursuant to an FPSC final order (2010 FPSC rate order), new retail base rates for FPL were established, resulting in an increase in retail base revenues of approximately $75 million on an annualized basis. The 2010 FPSC rate order, among other things, also established a regulatory ROE of 10.0% with a range of plus or minus 100 basis points. In February 2011, the FPSC issued a final order approving a stipulation and settlement agreement between FPL and principal parties in FPL's 2009 rate case (2010 rate agreement). The 2010 rate agreement, which was effective through December 31, 2012, provided for, among other things, a reduction in depreciation expense (surplus depreciation credit) in any calendar year up to a cap in 2010 of $267 million, a cap in subsequent years of $267 million plus the amount of any unused portion from prior years, and a total cap of $776 million over the course of the 2010 rate agreement, provided that in any year of the 2010 rate agreement FPL was required to use enough surplus depreciation credit to maintain an earned regulatory ROE within the range of 9.0% - 11.0%. The 2010 rate agreement also permitted incremental cost recovery through FPL's capacity clause for WCEC Unit No. 3 up to the amount of the projected annual fuel savings for customers.

NEER's revenue is recorded on the basis of commodities delivered, contracts settled or services rendered and includes estimated amounts yet to be billed to customers. Certain commodity contracts for the purchase and sale of power that meet the definition of a derivative are recorded at fair value with subsequent changes in fair value recognized as revenue. See Energy Trading below and Note 3.

In May 2014, the Financial Accounting Standards Board issued a new accounting standard which provides guidance on the recognition of revenue from contracts with customers and requires additional disclosures about the nature, amount, timing and uncertainty of revenue and cash flows from an entity's contracts with customers. The standard is effective for NEE and FPL beginning January 1, 2017. NEE and FPL are currently evaluating the effect the adoption of this standard will have, if any, on their consolidated financial statements.

Electric Plant, Depreciation and Amortization - The cost of additions to units of property of FPL and NEER is added to electric plant in service. In accordance with regulatory accounting, the cost of FPL's units of utility property retired, less estimated net salvage value, is charged to accumulated depreciation. Maintenance and repairs of property as well as replacements and renewals of items determined to be less than units of utility property are charged to other operations and maintenance (O&M) expenses. At December 31, 2014, the electric generating, transmission, distribution and general facilities of FPL represented approximately 51%, 11%, 33% and 5%, respectively, of FPL's gross investment in electric utility plant in service and other property. Substantially all of FPL's properties are subject to the lien of FPL's mortgage, which secures most debt securities issued by FPL. A number of NEER's generating facilities are encumbered by liens securing various financings. The net book value of NEER's assets serving as collateral was approximately $10.4 billion at December 31, 2014. The American Recovery and Reinvestment Act of 2009, as amended (Recovery Act), provided for an option to elect a cash grant (convertible investment tax credits (ITCs)) for certain renewable energy property (renewable property). Convertible ITCs are recorded as a reduction in property, plant and equipment on NEE's and FPL's consolidated balance sheets and are amortized as a reduction to depreciation and amortization expense over the estimated life of the related property. At December 31, 2014 and 2013, convertible ITCs, net of amortization, were approximately $1.6 billion ($159 million at FPL) and $1.5 billion ($165 million at FPL). At December 31, 2014 and 2013, approximately $1 million and $182 million, respectively, of such convertible ITCs are included in other receivables on NEE's consolidated balance sheets.

Depreciation of FPL's electric property is primarily provided on a straight-line average remaining life basis. FPL includes in depreciation expense a provision for fossil and solar plant dismantlement, interim asset removal costs, accretion related to asset retirement obligations (see Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs below), storm recovery amortization and amortization of pre-construction costs associated with planned nuclear units recovered through a cost recovery clause. For substantially all of FPL's property, depreciation studies are typically performed and filed with the FPSC at least every four years. As part of the 2010 FPSC rate order, the FPSC approved new depreciation rates which became effective January 1, 2010. In accordance with the 2012 rate agreement, FPL is not required to file depreciation studies during the effective period of the agreement and the previously approved depreciation rates remain in effect. As discussed in Revenue and Rates above, the use of reserve amortization (the reduction of the reserve under the 2012 rate agreement and the surplus depreciation credit under the 2010 rate agreement) is permitted under the 2012 and 2010 rate agreements. FPL files a twelve-month forecast with the FPSC each year which contains a regulatory ROE intended to be earned based on the best information FPL has at that time assuming normal weather. This forecast establishes a fixed targeted regulatory ROE. In order to earn the targeted regulatory ROE in each reporting period under the 2012 and 2010 rate agreements, reserve amortization is calculated using a trailing thirteen-month average of retail rate base and capital structure in conjunction with the trailing twelve months regulatory retail base net operating income, which primarily includes the retail base portion of base and other revenues, net of O&M, depreciation and amortization, interest and tax expenses. In general, the net impact of these income statement line items is adjusted, in part, by reserve amortization or reversal to earn the targeted regulatory ROE. In accordance with the 2012 and 2010 rate agreements, FPL recorded approximately $(33) million, $155 million and $480 million of reserve (reversal) amortization in 2014, 2013 and 2012, respectively. Beginning in 2013, the reserve is amortized as a reduction of (or reversed as an increase to) regulatory liabilities - accrued asset removal costs on NEE's and FPL's consolidated balance sheets. The weighted annual composite depreciation and amortization rate for FPL's electric utility plant in service, including capitalized software, but excluding the effects of decommissioning, dismantlement and the depreciation adjustments discussed above, was approximately 3.3%, 3.4% and 3.3% for 2014, 2013 and 2012, respectively.

NEER's electric plant in service less salvage value, if any, are depreciated primarily using the straight-line method over their estimated useful lives. At December 31, 2014 and 2013, wind, nuclear, natural gas and solar plants represented approximately 63% and 62%, 12% and 13%, 8% and 9%, and 7% and 6%, respectively, of NEER's depreciable electric plant in service and other property. The estimated useful lives of NEER's plants range primarily from 25 to 30 years for wind, natural gas and solar plants and from 25 to 47 years for nuclear plants. NEER reviews the estimated useful lives of its fixed assets on an ongoing basis. NEER's oil and gas production assets, representing approximately 6% of NEER's depreciable electric plant in service and other property at both December 31, 2014 and 2013, are accounted for under the successful efforts method. Depletion expenses for the acquisition of reserve rights and development costs are recognized using the unit of production method.

Nuclear Fuel - FPL and NEER have several contracts for the supply of uranium, conversion, enrichment and fabrication of nuclear fuel. See Note 13 - Contracts. FPL's and NEER's nuclear fuel costs are charged to fuel expense on a unit of production method.

Construction Activity - Allowance for funds used during construction (AFUDC) is a non-cash item which represents the allowed cost of capital, including an ROE, used to finance FPL construction projects. The portion of AFUDC attributable to borrowed funds is recorded as a reduction of interest expense and the remainder is recorded as other income. FPSC rules limit the recording of AFUDC to projects that have an estimated cost in excess of 0.5% of a utility's plant in service balance and require more than one year to complete. FPSC rules allow construction projects below the 0.5% threshold as a component of rate base. During 2014, 2013 and 2012, FPL capitalized AFUDC at a rate of 6.34%, 6.52% and 6.41%, respectively, which amounted to approximately $50 million, $81 million and $74 million, respectively. See Note 13 - Commitments.

FPL's construction work in progress includes construction materials, progress payments on major equipment contracts, engineering costs, AFUDC and other costs directly associated with the construction of various projects. Upon completion of the projects, these costs are transferred to electric utility plant in service and other property. Capitalized costs associated with construction activities are charged to O&M expenses when recoverability is no longer probable. See Regulation above for information on recovery of costs associated with new nuclear capacity and solar generating facilities.

NEER capitalizes project development costs once it is probable that such costs will be realized through the ultimate construction of a power plant or sale of development rights. At December 31, 2014 and 2013, NEER's capitalized development costs totaled approximately $122 million and $162 million, respectively, which are included in noncurrent other assets on NEE's consolidated balance sheets. These costs include land rights and other third-party costs directly associated with the development of a new project. Upon commencement of construction, these costs either are transferred to construction work in progress or remain in other assets, depending upon the nature of the cost. Capitalized development costs are charged to O&M expenses when it is no longer probable that these costs will be realized.

NEER's construction work in progress includes construction materials, prepayments on turbine generators and other equipment, third-party engineering costs, capitalized interest and other costs directly associated with the construction and development of various projects. Interest capitalized on construction projects amounted to approximately $104 million, $109 million and $139 million during 2014, 2013 and 2012, respectively. Interest expense allocated from NextEra Energy Capital Holdings, Inc. (NEECH) to NEER is based on a deemed capital structure of 70% debt. Upon commencement of plant operation, costs associated with construction work in progress are transferred to electric plant in service and other property.

Asset Retirement Obligations - NEE and FPL each account for asset retirement obligations and conditional asset retirement obligations (collectively, AROs) under accounting guidance that requires a liability for the fair value of an ARO to be recognized in the period in which it is incurred if it can be reasonably estimated, with the offsetting associated asset retirement costs capitalized as part of the carrying amount of the long-lived assets. The asset retirement cost is subsequently allocated to expense using a systematic and rational method over the asset’s estimated useful life. Changes in the ARO resulting from the passage of time are recognized as an increase in the carrying amount of the liability and as accretion expense, which is included in depreciation and amortization expense in the consolidated statements of income. Changes resulting from revisions to the timing or amount of the original estimate of cash flows are recognized as an increase or a decrease in the asset retirement cost, or income when asset retirement cost is depleted, in the case of NEE's non-rate regulated operations, and ARO and regulatory liability, in the case of FPL. See Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs below and Note 12.

Decommissioning of Nuclear Plants, Dismantlement of Plants and Other Accrued Asset Removal Costs - For ratemaking purposes, FPL accrues for the cost of end of life retirement and disposal of its nuclear, fossil and solar plants over the expected service life of each unit based on nuclear decommissioning and fossil and solar dismantlement studies periodically filed with the FPSC. In addition, FPL accrues for interim removal costs over the life of the related assets based on depreciation studies approved by the FPSC. As approved by the FPSC, FPL previously suspended its annual decommissioning accrual. For financial reporting purposes, FPL recognizes decommissioning and dismantlement liabilities in accordance with accounting guidance that requires a liability for the fair value of an ARO to be recognized in the period in which it is incurred. Any differences between expense recognized for financial reporting purposes and the amount recovered through rates are reported as a regulatory liability in accordance with regulatory accounting. See Revenues and Rates, Electric Plant, Depreciation and Amortization, Asset Retirement Obligations above and Note 12.

Nuclear decommissioning studies are performed at least every five years and are submitted to the FPSC for approval. FPL filed updated nuclear decommissioning studies with the FPSC in December 2010. These studies reflect FPL's current plans, under the operating licenses, for prompt dismantlement of Turkey Point Units Nos. 3 and 4 following the end of plant operation with decommissioning activities commencing in 2032 and 2033, respectively, and provide for St. Lucie Unit No. 1 to be mothballed beginning in 2036 with decommissioning activities to be integrated with the prompt dismantlement of St. Lucie Unit No. 2 in 2043. These studies also assume that FPL will be storing spent fuel on site pending removal to a U.S. government facility. The studies indicate FPL's portion of the ultimate costs of decommissioning its four nuclear units, including costs associated with spent fuel storage above what is expected to be refunded by the U.S. Department of Energy (DOE) under a spent fuel settlement agreement, to be approximately $6.2 billion, or $2.6 billion expressed in 2014 dollars.

Restricted funds for the payment of future expenditures to decommission FPL's nuclear units are included in nuclear decommissioning reserve funds, which are included in special use funds on NEE's and FPL's consolidated balance sheets. Marketable securities held in the decommissioning funds are primarily classified as available for sale and carried at fair value. See Note 4. FPL does not currently make contributions to the decommissioning funds, other than the reinvestment of dividends and interest. Fund earnings, consisting of dividends, interest and realized gains and losses, as well as any changes in unrealized gains and losses are not recognized in income and are reflected as a corresponding offset in the related regulatory liability accounts. During 2014, 2013 and 2012 fund earnings on decommissioning funds were approximately $91 million, $167 million and $98 million, respectively. The tax effects of amounts not yet recognized for tax purposes are included in accumulated deferred income taxes.

Fossil and solar plant dismantlement studies are typically performed at least every four years and are submitted to the FPSC for approval. FPL's latest fossil and solar plant dismantlement studies became effective January 1, 2010 and resulted in an annual expense of $18 million which is recorded in depreciation and amortization expense in NEE's and FPL's consolidated statements of income. At December 31, 2014, FPL's portion of the ultimate cost to dismantle its fossil and solar units is approximately $746 million, or $385 million expressed in 2014 dollars. In accordance with the 2012 rate agreement, FPL is not required to file fossil and solar dismantlement studies during the effective period of the agreement.

NEER records nuclear decommissioning liabilities for Seabrook Station (Seabrook), Duane Arnold Energy Center (Duane Arnold) and Point Beach Nuclear Power Plant (Point Beach) in accordance with accounting guidance that requires a liability for the fair value of an ARO to be recognized in the period in which it is incurred. The liability is being accreted using the interest method through the date decommissioning activities are expected to be complete. See Note 12. At December 31, 2014 and 2013, NEER's ARO related to nuclear decommissioning was approximately $462 million and $434 million, respectively, and was determined using various internal and external data and applying a probability percentage to a variety of scenarios regarding the life of the plant and timing of decommissioning. NEER's portion of the ultimate cost of decommissioning its nuclear plants, including costs associated with spent fuel storage above what is expected to be refunded by the DOE under a spent fuel settlement agreement, is estimated to be approximately $11.9 billion, or $2.0 billion expressed in 2014 dollars.

Seabrook files a comprehensive nuclear decommissioning study with the New Hampshire Nuclear Decommissioning Financing Committee (NDFC) every four years; the most recent study was filed in 2011. Seabrook's decommissioning funding plan is also subject to annual review by the NDFC. Currently, there are no ongoing decommissioning funding requirements for Seabrook, Duane Arnold and Point Beach, however, the U.S. Nuclear Regulatory Commission (NRC), and in the case of Seabrook, the NDFC, has the authority to require additional funding in the future. NEER's portion of Seabrook's, Duane Arnold's and Point Beach's restricted funds for the payment of future expenditures to decommission these plants is included in nuclear decommissioning reserve funds, which are included in special use funds on NEE's consolidated balance sheets. Marketable securities held in the decommissioning funds are primarily classified as available for sale and carried at fair value. Market adjustments result in a corresponding adjustment to other comprehensive income (OCI), except for unrealized losses associated with marketable securities considered to be other than temporary, including any credit losses, which are recognized as other than temporary impairment losses on securities held in nuclear decommissioning funds in NEE's consolidated statements of income. Fund earnings are recognized in income and are reinvested in the funds. See Note 4. The tax effects of amounts not yet recognized for tax purposes are included in accumulated deferred income taxes.

Major Maintenance Costs - FPL uses the accrue-in-advance method for recognizing costs associated with planned major nuclear maintenance, in accordance with regulatory treatment, and records the related accrual as a regulatory liability. FPL expenses costs associated with planned fossil maintenance as incurred. FPL's estimated nuclear maintenance costs for each nuclear unit's next planned outage are accrued over the period from the end of the last outage to the end of the next planned outage. Any difference between the estimated and actual costs is included in O&M expenses when known. The accrued liability for nuclear maintenance costs at December 31, 2014 and 2013 totaled approximately $50 million and $70 million, respectively, and is included in regulatory liabilities - other on NEE's and FPL's consolidated balance sheets. For the years ended December 31, 2014, 2013 and 2012, FPL recognized approximately $76 million, $92 million and $104 million, respectively, in nuclear maintenance costs which are primarily included in O&M expenses in NEE's and FPL's consolidated statements of income.

NEER uses the deferral method to account for certain planned major maintenance costs. NEER's major maintenance costs for its nuclear generating units and combustion turbines are capitalized and amortized on a unit of production method over the period from the end of the last outage to the beginning of the next planned outage. NEER's capitalized major maintenance costs, net of accumulated amortization, totaled approximately $141 million and $92 million at December 31, 2014 and 2013, respectively, and are included in noncurrent other assets on NEE's consolidated balance sheets. For the years ended December 31, 2014, 2013 and 2012, NEER amortized approximately $81 million, $93 million and $100 million in major maintenance costs which are included in O&M expenses in NEE's consolidated statements of income.

Cash Equivalents - Cash equivalents consist of short-term, highly liquid investments with original maturities of three months or less.

Restricted Cash - At December 31, 2014 and 2013, NEE had approximately $228 million ($38 million for FPL) and $215 million ($38 million for FPL), respectively, of restricted cash included in other current assets on NEE's and FPL's consolidated balance sheets, which was restricted primarily for margin cash collateral and debt service payments. Where offsetting positions exist, restricted cash related to margin cash collateral is netted against derivative instruments. See Note 3.

Allowance for Doubtful Accounts - FPL maintains an accumulated provision for uncollectible customer accounts receivable that is estimated using a percentage, derived from historical revenue and write-off trends, of the previous five months of revenue. Additional amounts are included in the provision to address specific items that are not considered in the calculation described above. NEER regularly reviews collectibility of its receivables and establishes a provision for losses estimated as a percentage of accounts receivable based on the historical bad debt write-off trends for its retail electricity provider operations and, when necessary, using the specific identification method for all other receivables.

Inventory - FPL values materials, supplies and fossil fuel inventory using a weighted-average cost method. NEER's materials, supplies and fossil fuel inventories are carried at the lower of weighted-average cost or market, unless evidence indicates that the weighted-average cost (even if in excess of market) will be recovered with a normal profit upon sale in the ordinary course of business.

Energy Trading - NEE provides full energy and capacity requirements services primarily to distribution utilities, which include load-following services and various ancillary services, in certain markets and engages in power and gas marketing and trading activities to optimize the value of electricity and fuel contracts, generating facilities and gas infrastructure assets, as well as to take advantage of projected favorable commodity price movements. Trading contracts that meet the definition of a derivative are accounted for at fair value and realized gains and losses from all trading contracts, including those where physical delivery is required, are recorded net for all periods presented. See Note 3.

Securitized Storm-Recovery Costs, Storm Fund and Storm Reserve - In connection with the 2007 storm-recovery bond financing (see Note 8 - FPL), the net proceeds to FPL from the sale of the storm-recovery property were used primarily to reimburse FPL for its estimated net of tax deficiency in its storm and property insurance reserve (storm reserve) and provide for a storm and property insurance reserve fund (storm fund). Upon the issuance of the storm-recovery bonds, the storm reserve deficiency was reclassified to securitized storm-recovery costs and is recorded as a regulatory asset on NEE's and FPL's consolidated balance sheets. As storm-recovery charges are billed to customers, the securitized storm-recovery costs are amortized and included in depreciation and amortization in NEE's and FPL's consolidated statements of income. Marketable securities held in the storm fund are classified as available for sale and are carried at fair value with market adjustments, including any other than temporary impairment losses, resulting in a corresponding adjustment to the storm reserve. Fund earnings, net of taxes, are reinvested in the fund. The tax effects of amounts not yet recognized for tax purposes are included in accumulated deferred income taxes. The storm fund is included in special use funds on NEE's and FPL's consolidated balance sheets and was approximately $75 million and $74 million at December 31, 2014 and 2013, respectively. See Note 4.

The storm reserve that was reestablished in an FPSC financing order related to the issuance of the storm-recovery bonds was not initially reflected on NEE's and FPL's consolidated balance sheets because the associated regulatory asset did not meet the specific recognition criteria under the accounting guidance for certain regulated entities. As a result, the storm reserve will be recognized as a regulatory liability as the storm-recovery charges are billed to customers and charged to depreciation and amortization in NEE's and FPL's consolidated statements of income. Furthermore, the storm reserve will be reduced as storm costs are reimbursed. As of December 31, 2014, FPL had the capacity to absorb up to approximately $122 million in future prudently incurred storm restoration costs without seeking recovery through a rate adjustment from the FPSC or filing a petition with the FPSC.

Impairment of Long-Lived Assets - NEE evaluates long-lived assets for impairment when events or changes in circumstances indicate that the carrying amount may not be recoverable. An impairment loss is required to be recognized if the carrying value of the asset exceeds the undiscounted future net cash flows associated with that asset. The impairment loss to be recognized is the amount by which the carrying value of the long-lived asset exceeds the asset's fair value. In most instances, the fair value is determined by discounting estimated future cash flows using an appropriate interest rate. See Note 4 - Nonrecurring Fair Value Measurements.

Goodwill and Other Intangible Assets - NEE's goodwill and other intangible assets are as follows:

 
Weighted-
Average
Useful Lives
 
December 31,
 
 
2014
 
2013
 
(years)
 
(millions)
Goodwill:
 
 
 
 
 
Merchant reporting unit
 
 
$
72

 
$
72

Wind reporting unit
 
 
47

 
49

Fiber-optic telecommunications reporting unit
 
 
28

 
28

Total goodwill
 
 
$
147

 
$
149

Other intangible assets not subject to amortization, primarily land easements
 
 
$
143

 
$
143

Other intangible assets subject to amortization:
 
 
 
 
 
Purchased power agreements
22
 
$
348

 
$
70

Customer lists
5
 
34

 
35

Other, primarily transmission and development rights, permits and licenses
24
 
105

 
98

Total
 
 
487

 
203

Less accumulated amortization
 
 
(125
)
 
(112
)
Total other intangible assets subject to amortization - net
 
 
$
362

 
$
91



NEE's goodwill relates to various acquisitions which were accounted for using the purchase method of accounting. Other intangible assets subject to amortization are amortized, primarily on a straight-line basis, over their estimated useful lives. For the years ended December 31, 2014, 2013 and 2012, amortization expense was approximately $15 million, $13 million and $14 million, respectively, and is expected to be approximately $14 million, $24 million, $20 million, $19 million and $17 million for 2015, 2016, 2017, 2018 and 2019, respectively.

Goodwill and other intangible assets are included in noncurrent other assets on NEE's consolidated balance sheets. Goodwill and other intangible assets not subject to amortization are assessed for impairment at least annually by applying a fair value-based analysis. Other intangible assets subject to amortization are periodically reviewed when impairment indicators are present to assess recoverability from future operations using undiscounted future cash flows.

Pension and Other Postretirement Plans - NEE allocates net periodic pension benefit income to its subsidiaries based on the pensionable earnings of the subsidiaries' employees; net periodic supplemental executive retirement plan (SERP) benefit costs to its subsidiaries based upon actuarial calculations by participant; and postretirement health care and life insurance benefits (other benefits) net periodic benefit costs to its subsidiaries based upon the number of eligible employees at each subsidiary.

Accounting guidance requires recognition of the funded status of benefit plans in the balance sheet, with changes in the funded status recognized in other comprehensive income within shareholders' equity in the year in which the changes occur. Since NEE is the plan sponsor, and its subsidiaries do not have separate rights to the plan assets or direct obligations to their employees, this accounting guidance is reflected at NEE and not allocated to the subsidiaries. The portion of previously unrecognized actuarial gains and losses and prior service costs or credits that are estimated to be allocable to FPL as net periodic benefit (income) cost in future periods and that otherwise would be recorded in accumulated other comprehensive income (AOCI) are classified as regulatory assets and liabilities at NEE in accordance with regulatory treatment.

Stock-Based Compensation - NEE accounts for stock-based payment transactions based on grant-date fair value. Compensation costs for awards with graded vesting are recognized on a straight-line basis over the requisite service period for the entire award. See Note 10 - Stock-Based Compensation.
Income Taxes - Deferred income taxes are recognized on all significant temporary differences between the financial statement and tax bases of assets and liabilities. In connection with the tax sharing agreement between NEE and its subsidiaries, the income tax provision at each subsidiary reflects the use of the "separate return method," except that tax benefits that could not be used on a separate return basis, but are used on the consolidated tax return, are recorded by the subsidiary that generated the tax benefits. Any remaining consolidated income tax benefits or expenses are recorded at the corporate level. Included in other regulatory assets and other regulatory liabilities on NEE's and FPL's consolidated balance sheets is the revenue equivalent of the difference in accumulated deferred income taxes computed under accounting rules, as compared to regulatory accounting rules. The net regulatory asset totaled $250 million ($236 million for FPL) and $233 million ($218 million for FPL) at December 31, 2014 and 2013, respectively, and is being amortized in accordance with the regulatory treatment over the estimated lives of the assets or liabilities for which the deferred tax amount was initially recognized.

NEER recognizes ITCs as a reduction to income tax expense when the related energy property is placed into service. Production tax credits (PTCs) are recognized as wind energy is generated and sold based on a per kWh rate prescribed in applicable federal and state statutes and are recorded as a reduction of current income taxes payable, unless limited by tax law in which instance they are recorded as deferred tax assets. NEE and FPL record a deferred income tax benefit created by the convertible ITCs on the difference between the financial statement and tax bases of renewable property. For NEER, this deferred income tax benefit is recorded in income tax expense in the year that the renewable property is placed in service. For FPL, this deferred income tax benefit is offset by a regulatory liability, which is amortized as a reduction of depreciation expense over the approximate lives of the related renewable property in accordance with the regulatory treatment. At December 31, 2014 and 2013, the net deferred income tax benefits associated with FPL's convertible ITCs were approximately $50 million and $52 million, respectively, and are included in other regulatory assets and regulatory liabilities on NEE's and FPL's consolidated balance sheets.

A valuation allowance is recorded to reduce the carrying amounts of deferred tax assets when it is more likely than not that such assets will not be realized. NEE recognizes interest income (expense) related to unrecognized tax benefits (liabilities) in interest income and interest expense, respectively, net of the amount deferred at FPL. At FPL, the offset to accrued interest receivable (payable) on income taxes is classified as a regulatory liability (regulatory asset) which will be amortized to income (expense) over a five-year period upon settlement in accordance with regulatory treatment. All tax positions taken by NEE in its income tax returns that are recognized in the financial statements must satisfy a more-likely-than-not threshold. See Note 5.

Sale of Differential Membership Interests - Certain subsidiaries of NEER sold their Class B membership interest in entities that have ownership interests in wind facilities, with generating capacity totaling approximately 4,490 MW at December 31, 2014, to third-party investors. In exchange for the cash received, the holders of the Class B membership interests will receive a portion of the economic attributes of the facilities, including income tax attributes, for variable periods. The transactions are not treated as a sale under the accounting rules and the proceeds received are deferred and recorded as a liability in deferral related to differential membership interests - VIEs on NEE's consolidated balance sheets. The deferred amount is being recognized in benefits associated with differential membership interests - net in NEE's consolidated statements of income as the Class B members receive their portion of the economic attributes. NEE continues to operate and manage the wind facilities, and consolidates the entities that own the wind facilities.

Variable Interest Entities (VIEs) - An entity is considered to be a VIE when its total equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support, or its equity investors, as a group, lack the characteristics of having a controlling financial interest. A reporting company is required to consolidate a VIE as its primary beneficiary when it has both the power to direct the activities of the VIE that most significantly impact the VIE's economic performance, and the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE. NEE and FPL evaluate whether an entity is a VIE whenever reconsideration events as defined by the accounting guidance occur. See Note 8.

Proposed Merger - In December 2014, NEE and Hawaiian Electric Industries, Inc. (HEI) entered into an Agreement and Plan of Merger (the merger agreement) pursuant to which Hawaiian Electric Company, Inc., HEI's wholly-owned electric utility subsidiary, will become a wholly-owned subsidiary of NEE and each outstanding share of HEI common stock will be converted into the right to receive 0.2413 shares of NEE common stock. The companies are working to complete the merger by the end of 2015. However, completion of the merger and the actual closing date depend upon the satisfaction of a number of conditions, including approval by HEI shareholders and the receipt of required regulatory approvals. The merger agreement contains certain termination rights and provides that, upon termination of the merger agreement under specified circumstances, HEI or NEE, as the case may be, would be required to pay to the other party a termination fee of $90 million and reimburse the other party for up to $5 million of its documented out-of-pocket expenses incurred in connection with the merger agreement.