Basis of Presentation and Summary of Significant Accounting Policies.

The audited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”).

We conduct and plan to continue to conduct our activities in such a manner as not to be deemed an investment company under the Investment Company Act of 1940, as amended (the “'40 Act”). Therefore, no more than 40% of our total assets can be invested in investment securities, as such term is defined in the '40 Act. In addition, we do not invest or intend to invest in securities as our primary business. We intend to structure our investments to continue to be taxed as a partnership rather than as a corporation under the applicable publicly traded partnership rules of the Internal Revenue Code, as amended.

Principles of Consolidation

As of December 31, 2017, our consolidated financial statements include the accounts of (i) Icahn Enterprises and Icahn Enterprises Holdings and (ii) the wholly and majority owned subsidiaries of Icahn Enterprises and Icahn Enterprises Holdings, in addition to variable interest entities ("VIEs") in which we are the primary beneficiary. In evaluating whether we have a controlling financial interest in entities that we consolidate, we consider the following: (1) for voting interest entities, including limited partnerships and similar entities that are not VIEs, we consolidate these entities in which we own a majority of the voting interests; and (2) for VIEs, we consolidate these entities in which we are the primary beneficiary. See below for a discussion of our VIEs. Kick-out rights, which are the rights underlying the limited partners' ability to dissolve the limited partnership or otherwise remove the general partners, held through voting interests of partnerships and similar entities that are not VIEs are considered the equivalent of the equity interests of corporations that are not VIEs.

Except for our Investment segment, for those investments in which we own 50% or less but greater than 20%, we generally account for such investments using the equity method, while investments in affiliates of 20% or less are accounted for under the cost method.

Reclassifications

Certain reclassifications from the prior year presentation have been made to conform to the current year presentation.

Use of Estimates in Preparation of Financial Statements

The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amount of assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the period. Due to the inherent uncertainty involved in making estimates, actual results may differ from the estimates and assumptions used in preparing the consolidated financial statements.

Variable Interest Entities

Icahn Enterprises Holdings

We determined that Icahn Enterprises Holdings is a VIE because it lacks both substantive kick-out and participating rights. Icahn Enterprises is the primary beneficiary of Icahn Enterprises Holdings principally based on its 99% limited partner interest in Icahn Enterprises Holdings and therefore continues to consolidate Icahn Enterprises Holdings. The consolidated financial statements of Icahn Enterprises Holdings are included in this Report. The balances with respect to Icahn Enterprises Holdings' consolidated VIEs are discussed below, comprising the Investment Funds, CVR Refining, CVR Partners and Viskase.

Investment

We determined that each of the Investment Funds are considered VIEs because these limited partnerships lack both substantive kick-out and participating rights. Because we have a general partner interest in each of the Investment Funds and have significant limited partner interests in each of the Investment Funds, coupled with our significant exposure to losses and benefits in each of the Investment Funds, we are the primary beneficiary of each of the Investment Funds and therefore continue to consolidate each of the Investment Funds.

Energy

CVR Refining and CVR Partners are each considered VIEs because each of these limited partnerships lack both substantive kick-out and participating rights. In addition, CVR Energy also concluded that, based upon its general partner's roles and rights in CVR Refining and CVR Partners as afforded by their respective partnership agreements, coupled with its exposure to losses and benefits in each of CVR Refining and CVR Partners through its significant limited partner interests, intercompany credit facilities and services agreements, it is the primary beneficiary of both CVR Refining and CVR Partners. Based upon this evaluation, CVR Energy continues to consolidate both CVR Refining and CVR Partners.

Food Packaging

Beginning in 2017, Viskase holds a variable interest in a joint venture for which Viskase is the primary beneficiary. Viskase's interest in the joint venture includes a 50% equity interest and also relates to the sales, operations, administrative and financial support to the joint venture through providing many of the assets used in its business.

The following table includes balances of assets and liabilities of VIE's included in Icahn Enterprises Holdings' consolidated balance sheets.



	December 31,
	2017		2016
	(in millions)
Cash and cash equivalents	$	223	$	370
Cash held at consolidated affiliated partnerships and restricted cash	734		752
Investments	9,615		9,219
Due from brokers	506		1,482
Property, plant and equipment, net	3,191		3,331
Inventories	385		349
Intangible assets, net	298		318
Other assets	48		110
Accounts payable, accrued expenses and other liabilities	1,816		1,769
Securities sold, not yet purchased, at fair value	1,023		1,139
Due to brokers	1,057		3,725
Debt	1,166		1,165

Fair Value of Financial Instruments

The carrying values of cash and cash equivalents, cash held at consolidated affiliated partnerships and restricted cash, accounts receivable, due from brokers, accounts payable, accrued expenses and other liabilities and due to brokers are deemed to be reasonable estimates of their fair values because of their short-term nature. See Note 4, “Investments and Related Matters,” and Note 5, “Fair Value Measurements,” for a detailed discussion of our investments and other non-financial assets and/or liabilities.

The fair value of our long-term debt is based on the quoted market prices for the same or similar issues or on the current rates offered to us for debt of the same remaining maturities. The carrying value and estimated fair value of our debt as of December 31, 2017 was approximately $11.2 billion and $11.5 billion, respectively. The carrying value and estimated fair value of our debt as of December 31, 2016 was approximately $11.1 billion and $11.2 billion, respectively.

Acquisitions of Businesses

We account for business combinations under the acquisition method of accounting (other than acquisitions of businesses under common control), which requires us to recognize separately from goodwill the assets acquired and the liabilities assumed at their acquisition date fair values. While we use our best estimates and assumptions to accurately value assets acquired and liabilities assumed at the acquisition date as well as contingent consideration, where applicable, our estimates are inherently uncertain and subject to refinement.

Accounting for business combinations requires us to make significant estimates and assumptions, especially at the acquisition date including our estimates for intangible assets, contractual obligations assumed, pre-acquisition contingencies, and contingent consideration, where applicable. In valuing our acquisitions, we estimate fair values based on industry data and trends and by reference to relevant market rates and transactions, and discounted cash flow valuation methods, among other factors. The discount rates used were commensurate with the inherent risks associated with each type of asset and the level and timing of cash flows appropriately reflect market participant assumptions. The primary items that generate goodwill include the value of the synergies between the acquired company and our existing businesses and the value of the acquired assembled workforce, neither of which qualifies for recognition as an intangible asset.

Acquisition, Investments and Disposition of Entities under Common Control

Acquisitions or investments of entities under common control are reflected in a manner similar to pooling of interests. The general partner's capital account or non-controlling interests, as applicable, are charged or credited for the difference between the consideration we pay for the entity and the related entity's basis prior to our acquisition or investment. Net gains or losses of an acquired entity prior to its acquisition or investment date are allocated to the general partner's capital account or non-controlling interests, as applicable. In allocating gains and losses upon the sale of a previously acquired common control entity, we allocate a gain or loss for financial reporting purposes by first restoring the general partner's capital account or non-controlling interests, as applicable, for the cumulative charges or credits relating to prior periods recorded at the time of our acquisition or investment and then allocating the remaining gain or loss ("Common Control Gains or Losses") among our general partner, limited partners and non-controlling interests, as applicable, in accordance with their respective ownership percentages. In the case of acquisitions of entities under common control, such Common Control Gains or Losses are allocated in accordance with their respective partnership percentages under the Amended and Restated Agreement of Limited Partnership dated as of May 12, 1987, as amended from time to time (together with the partnership agreement of Icahn Enterprises Holdings, the “Partnership Agreement”) (i.e., 98.01% to the limited partners and 1.99% to the general partner).

Cash and Cash Equivalents

We consider short-term investments, which are highly liquid with original maturities of three months or less at date of purchase, to be cash equivalents.

Cash Held at Consolidated Affiliated Partnerships and Restricted Cash

Cash held at consolidated affiliated partnerships primarily consists of cash and cash equivalents held by our Investment Funds (as defined herein) that, although not legally restricted, is not available to fund the general liquidity needs of the Investment segment or Icahn Enterprises. Restricted cash primarily relates to cash pledged and held for margin requirements on derivative transactions.

Our restricted cash balance was $594 million and $686 million as of December 31, 2017 and 2016, respectively.

Investments and Related Transactions

Investment

Investment Transactions and Related Investment Income (Loss). Investment transactions of the Investment Funds are recorded on a trade date basis. Realized gains or losses on sales of investments are based on the first-in, first-out or the specific identification method. Realized and unrealized gains or losses on investments are recorded in the consolidated statements of operations. Interest income and expenses are recorded on an accrual basis and dividends are recorded on the ex-dividend date. Premiums and discounts on fixed income securities are amortized using the effective yield method.

Investments held by the Investment segment are accounted for as trading securities. Our Investment segment applies the fair value option to those investments that are otherwise subject to the equity method.

Valuation of Investments. Securities of the Investment Funds that are listed on a securities exchange are valued at their last sales price on the primary securities exchange on which such securities are traded on such date. Securities that are not listed on any exchange but are traded over-the-counter are valued at the mean between the last “bid” and “ask” price for such security on such date. Securities and other instruments for which market quotes are not readily available are valued at fair value as determined in good faith by the applicable General Partner.

Foreign Currency Transactions. The books and records of the Investment Funds are maintained in U.S. dollars. Assets and liabilities denominated in currencies other than U.S. dollars are translated into U.S. dollars at the rate of exchange in effect at the balance sheet date. Transactions during the period denominated in currencies other than U.S. dollars are translated at the rate of exchange applicable on the date of the transaction. Foreign currency translation gains and losses are recorded in the consolidated statements of operations. The Investment Funds do not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in the market prices of securities. Such fluctuations are reflected in net gain (loss) from investment activities in the consolidated statement of operations.

Fair Values of Financial Instruments. The fair values of the Investment Funds' assets and liabilities that qualify as financial instruments under applicable U.S. GAAP approximate the carrying amounts presented in the consolidated balance sheets.

Securities Sold, Not Yet Purchased. The Investment Funds may sell an investment they do not own in anticipation of a decline in the fair value of that investment. When the Investment Funds sell an investment short, they must borrow the investment sold short and deliver it to the broker-dealer through which they made the short sale. A gain, limited to the price at which the Investment Funds sold the investment short, or a loss, unlimited in amount, will be recognized upon the cover of the short sale.

Due From Brokers. Due from brokers represents cash balances with the Investment Funds' clearing brokers. These funds as well as fully-paid for and marginable securities are essentially restricted to the extent that they serve as collateral against securities sold, not yet purchased. Due from brokers may also include unrestricted balances with derivative counterparties.

Due To Brokers. Due to brokers represents margin debit balances collateralized by certain of the Investment Funds' investments in securities.

Other Segments and Holding Company

Investments in equity and debt securities are classified as either trading or available-for-sale based upon whether we intend to hold the investment for the foreseeable future. Trading securities are valued at quoted market value at each balance sheet date with the unrealized gains or losses reflected in the consolidated statements of operations. Available-for-sale securities are carried at fair value on our balance sheet. Unrealized holding gains and losses on available-for-sale securities are excluded from earnings and reported as a separate component of partners' equity and when sold are reclassified out of partners' equity to the consolidated statements of operations. For purposes of determining gains and losses, the cost of securities is based on specific identification.

A decline in the market value of any available-for-sale security below cost that is deemed to be other than temporary results in an impairment that is charged to earnings and the establishment of a new cost basis for the investment. Dividend income is recorded when declared and interest income is recognized when earned.

Fair Value Option for Financial Assets and Financial Liabilities

The fair value option gives entities the option to measure eligible financial assets, financial liabilities and firm commitments at fair value (i.e., the fair value option), on an instrument-by-instrument basis, that are otherwise not permitted to be accounted for at fair value pursuant to the provisions of FASB Accounting Standards Codification ("ASC") Topic 825, Financial Instruments. The election to use the fair value option is available when an entity first recognizes a financial asset or financial liability or upon entering into a firm commitment. Subsequent changes in fair value must be recorded in earnings. In estimating the fair value for financial instruments for which the fair value option has been elected, we use the valuation methodologies in accordance to where the financial instruments are classified within the fair value hierarchy as discussed in Note 5, “Fair Value Measurements.” For our Investment segment, we apply the fair value option to our investments that would otherwise be accounted under the equity method.

Derivatives

From time to time, our subsidiaries enter into derivative contracts, including purchased and written option contracts, swap contracts, futures contracts and forward contracts. U.S. GAAP requires recognition of all derivatives as either assets or liabilities in the balance sheet at their fair value. The accounting for changes in fair value depends on the intended use of the derivative and its resulting designation. For those derivative instruments that are designated and qualify as hedging instruments, a company must designate the hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge or a hedge of a net investment in a foreign operation. Gains and losses related to a hedge are either recognized in income immediately to offset the gain or loss on the hedged item or are deferred and reported as a component of accumulated other comprehensive loss and subsequently recognized in earnings when the hedged item affects earnings. The change in fair value of the ineffective portion of a financial instrument, determined using the hypothetical derivative method, is recognized in earnings immediately. The gain or loss related to financial instruments that are not designated as hedges are recognized immediately in earnings. Cash flows related to hedging activities are included in the operating section of the consolidated statements of cash flows. For further information regarding our derivative contracts, see Note 6, “Financial Instruments,” to the consolidated financial statements.

Accounts Receivable, Net

An allowance for doubtful accounts is determined through analysis of the aging of accounts receivable at the date of the consolidated financial statements, assessments of collectability based on an evaluation of historic and anticipated trends, the financial condition of our customers, and an evaluation of the impact of economic conditions. Our allowance for doubtful accounts is an estimate based on specifically identified accounts as well as general reserves based on historical experience.

Accounts Receivable Factoring

Accounts receivable factoring relates primarily to our Automotive segment. Federal-Mogul's subsidiaries in Brazil, Canada, France, Germany, Italy and the United States are party to accounts receivable factoring and securitization facilities. Gross accounts receivable transferred under these facilities were $641 million and $487 million as of December 31, 2017 and 2016, respectively. Of those gross amounts, $635 million and $485 million, respectively, qualify as sales in accordance with U.S. GAAP. The remaining transferred receivables were pledged as collateral and accounted for as secured borrowings and recorded in the consolidated balance sheets within accounts receivable, net and debt. Under the terms of these facilities, Federal-Mogul is not obligated to draw cash immediately upon the transfer of accounts receivable. As of December 31, 2017 and 2016, Federal-Mogul did not have any undrawn cash related to such transferred receivables.

Proceeds from the transfers of accounts receivable qualifying as sales were approximately $1.8 billion, $1.6 billion and $1.6 billion for the years ended December 31, 2017, 2016 and 2015, respectively. For the years ended December 31, 2017, 2016 and 2015, expenses associated with transfers of receivables were $15 million, $12 million and $9 million, respectively. Such expenses were recorded in the consolidated statements of operations within other income, net. Where Federal-Mogul receives a fee to service and monitor these transferred receivables, such fees are sufficient to offset the costs and as such, a servicing asset or liability is not incurred as a result of such activities.

Inventories, Net

Automotive, Railcar, Food Packaging, and Home Fashion Segment Inventories. Our Automotive, Railcar, Food Packaging and Home Fashion segment inventories are stated at the lower of cost or market. Cost is determined by using the first-in, first-out basis method ("FIFO"), except for IEH Auto which utilizes weighted-average cost and Pep Boys which utilizes the last-in, first-out method. Inventory recorded using the last-in, first-out method was $900 million and $735 million as of December 31, 2017 and 2016, respectively, all of which relates to finished goods. The cost of manufactured goods includes the cost of direct materials, labor and manufacturing overhead. Our Automotive, Railcar, Food Packaging and Home Fashion segments reserve for estimated excess, slow-moving and obsolete inventory as well as inventory whose carrying value is in excess of net realizable value.

Energy Segment Inventories. Our Energy segment inventories consist primarily of domestic and foreign crude oil, blending stock and components, work in progress, fertilizer products, and refined fuels and by-products. Inventories are valued at the lower of FIFO cost, or net realizable value for fertilizer products, refined fuels and by-products for all periods presented. Refinery unfinished and finished products inventory values were determined using the ability-to-bear process, whereby raw materials and production costs are allocated to work-in-process and finished goods based on their relative fair values. Other inventories, including other raw materials, spare parts and supplies, are valued at the lower of moving-average cost, which approximates FIFO, or net realizable value. The cost of inventories includes inbound freight costs.

Metals Segment Inventories. Inventories at our Metals segment are stated at the lower of cost or market. Cost is determined using the average cost method. The production and accounting process utilized by our Metals segment to record recycled metals inventory quantities relies on significant estimates. Our Metals segment relies upon perpetual inventory records that utilize estimated recoveries and yields that are based upon historical trends and periodic tests for certain unprocessed metal commodities. Over time, these estimates are reasonably good indicators of what is ultimately produced; however, actual recoveries and yields can vary depending on product quality, moisture content and source of the unprocessed metal. To assist in validating the reasonableness of the estimates, our Metals segment performs periodic physical inventories which involve the use of estimation techniques. Physical inventories may detect significant variations in volume, but because of variations in product density and production processes utilized to manufacture the product, physical inventories will not generally detect smaller variations. To help mitigate this risk, our Metals segment adjusts its physical inventories when the volume of a commodity is low and a physical inventory can more accurately estimate the remaining volume.

Mining Segment Inventories. Our Mining segment's inventories are valued at the lower of cost or market. Cost includes all costs incurred in the normal course of business in bringing each product to its present location and condition, including direct materials and direct labor costs, and an allocation of production overheads based on normal production capacity. Cost is calculated using weighted average unit cost.

Long-Lived Assets

Long-lived assets such as property, plant, and equipment, and definite-lived intangible assets are recorded at cost or fair value established at acquisition, less accumulated depreciation or amortization, unless the expected future use of the assets indicate a lower value is appropriate. Long-lived asset groups are evaluated for impairment when impairment indicators exist. If the carrying value of a long-lived asset group is impaired, an impairment charge is recorded for the amount by which the carrying value of the long-lived asset group exceeds its fair value. Depreciation and amortization are computed principally by the straight-line method for financial reporting purposes.

Land and construction in progress are stated at the lower of cost or net realizable value. Interest is capitalized on expenditures for long-term projects until a salable or ready-for-use condition is reached. The interest capitalization rate is based on the interest rate on specific borrowings to fund the projects.

Energy

The direct-expense method of accounting is used for planned major maintenance activities. Maintenance costs are recognized as expense when maintenance services are performed. Planned major maintenance activities for CVR Energy's nitrogen plant generally occur every two to three years. The required frequency of planned major maintenance activities varies by unit for the refineries, but generally is every four to five years.

For the years ended December 31, 2017, 2016, and 2015, our Energy segment recorded an aggregate of $83 million, $38 million and $109 million, respectively, in turnaround expenses related to its refineries and nitrogen fertilizer plants.

Mining

The costs of acquiring mineral reserves and resources for our Mining segment are capitalized on the consolidated balance sheets as incurred. Capitalized mineral reserves and mine development expenditures are, upon commencement of commercial production, depreciated using a unit of production method based on the estimated economically recoverable reserves to which they relate, or are written off if abandoned.

Exploration and evaluation expenditures relate to costs incurred in the exploration and evaluation of potential mineral reserves and include costs such as exploratory drilling, sample testing and the costs of feasibility studies. For our Mining segment, exploration and evaluation expenditures other than that acquired through the purchase of another mining company, are expensed as incurred. Purchased exploration and evaluation assets are recognized as assets at their cost of acquisition or at fair value if purchased as part of a business combination.

Expenditures are transferred to mine development assets once the work completed supports the future development of the property, provided that technical feasibility and commercial viability studies have been successfully completed.

Goodwill and Indefinite-Lived Intangible Assets

Goodwill and indefinite lived intangible assets primarily include trademarks and brand names acquired in acquisitions. For a complete discussion of the impairment of goodwill and indefinite-lived intangible assets related to our various segments see Note 8, “Goodwill and Intangible Assets, Net.”

Goodwill

Goodwill is determined as the excess of fair value over amounts attributable to specific tangible and intangible assets. Goodwill is reviewed for impairment annually, or more frequently if impairment indicators exist. An impairment exists when a reporting unit’s carrying value exceeds its fair value. When performing the goodwill impairment testing, a reporting units’ fair value is based on valuation techniques using the best available information, primarily discounted cash flows projections, guideline transaction multiples, and multiples of current and future earnings. The impairment charge, if any, is the excess of the tested reporting unit's carrying value over its fair value, limited to the total amount of goodwill allocated to the tested reporting unit.

Indefinite-Lived Intangible Assets

Indefinite-lived intangible assets are stated at fair value established at acquisition or cost. These indefinite-lived intangible assets are reviewed for impairment annually, or more frequently if impairment indicators exist. An impairment exists when a trademark or brand names' carrying value exceeds its fair value. The fair values of these assets are based upon the prospective stream of hypothetical after-tax royalty cost savings discounted at rates that reflect the rates of return appropriate for these intangible assets. The impairment charge, if any, is the excess of the assets carrying value over its fair value.

Held For Sale

We classify assets and liabilities as held for sale when management, having the authority to approve the action, commits to a plan to sell the disposal group, the sale is probable within one year, and the disposal group is available for immediate sale in its present condition. We also consider whether an active program to locate a buyer has been initiated, whether the disposal group is marketed actively for sale at a price that is reasonable in relation to its current fair value, and whether actions required to complete the plan indicate it is unlikely significant changes to the plan will be made or the plan will be withdrawn.

As of December 31, 2017, assets held for sale were not material. As of December 31, 2016, assets held for sale primarily consisted of property plant and equipment of approximately $1.2 billion and liabilities held for sale primarily consisted of debt of approximately $1.7 billion. Such assets and liabilities held for sale related primarily to our pending sale of ARL. During 2017, we closed on the sale of ARL and disposed of such assets and liabilities previously classified as held for sale.

Pension and Other Post-Retirement Benefit Plan Obligations

Pension and other post-employment benefit costs are dependent upon assumptions used in calculating such costs. These assumptions include discount rates, health care cost trends, expected returns on plan assets and other factors. In accordance with U.S. GAAP, actual results that differ from the assumptions used are accumulated and amortized over future periods and, accordingly, generally affect recognized expense and the recorded obligation in future periods.

Allocation of Net Profits and Losses in Consolidated Affiliated Partnerships

Net investment income and net realized and unrealized gains and losses on investments of the Investment Funds are allocated to the respective partners of the Investment Funds based on their percentage ownership in such Investment Funds on a monthly basis. Except for our limited partner interest, such allocations made to the limited partners of the Investment Funds are represented as non-controlling interests in our consolidated statements of operations.

General Partnership Interest of Icahn Enterprises and Icahn Enterprises Holdings

The general partner's capital account generally consists of its cumulative share of our net income less cash distributions plus capital contributions. Additionally, in acquisitions of common control companies accounted for at historical cost similar to a pooling of interests, the general partner's capital account would be charged (or credited) in a manner similar to a distribution (or contribution) for the excess (or deficit) of the fair value of consideration paid over historical basis in the business acquired.

Capital Accounts, as defined under the Partnership Agreement, are maintained for our general partner and our limited partners. The capital account provisions of our Partnership Agreement incorporate principles established for U.S. federal income tax purposes and are not comparable to the equity accounts reflected under U.S. GAAP in our consolidated financial statements. Under our Partnership Agreement, the general partner is required to make additional capital contributions to us upon the issuance of any additional depositary units in order to maintain a capital account balance equal to 1.99% (1.00% in the case of Icahn Enterprises Holdings) of the total capital accounts of all partners.

Generally, net earnings for U.S. federal income tax purposes are allocated 1.99% (1.00% in the case of Icahn Enterprises Holdings) and 98.01% (99.00% in the case of Icahn Enterprises Holdings) between the general partner and the limited partners, respectively, in the same proportion as aggregate cash distributions made to the general partner and the limited partners during the period. This is generally consistent with the manner of allocating net income under our Partnership Agreement; however, it is not comparable to the allocation of net income reflected in our consolidated financial statements.

Pursuant to the Partnership Agreement, in the event of our dissolution, after satisfying our liabilities, our remaining assets would be divided among our limited partners and the general partner in accordance with their respective percentage interests under the Partnership Agreement. If a deficit balance still remains in the general partner's capital account after all allocations are made between the partners, the general partner would not be required to make whole any such deficit.

Income Per LP Unit

For Icahn Enterprises, basic income (loss) per LP unit is based on net income or loss attributable to Icahn Enterprises allocable to limited partners. Net income or loss allocable to limited partners is divided by the weighted-average number of LP units outstanding. Diluted income (loss) per LP unit, when applicable, is based on basic income (loss) adjusted for the potential effect of dilutive securities as well as the related weighted-average number of units and equivalent units outstanding.

For accounting purposes, when applicable, earnings prior to dates of acquisitions or investments in joint ventures of entities under common control are excluded from the computation of basic and diluted income per LP unit as such earnings are allocated to our general partner or non-controlling interests.

Income Taxes

Except as described below, no provision has been made for federal, state, local or foreign income taxes on the results of operations generated by partnership activities, as such taxes are the responsibility of the partners. Provision has been made for federal, state, local or foreign income taxes on the results of operations generated by our corporate subsidiaries and these are reflected within continuing and discontinued operations. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

Deferred tax assets are limited to amounts considered to be realizable in future periods. A valuation allowance is recorded against deferred tax assets if management does not believe that we have met the “more-likely-than-not” standard to allow recognition of such an asset.

U.S. GAAP provides that the tax effects from an uncertain tax position can be recognized in the financial statements only if the position is “more-likely-than-not” to be sustained if the position were to be challenged by a taxing authority. The assessment of the tax position is based solely on the technical merits of the position, without regard to the likelihood that the tax position may be challenged. If an uncertain tax position meets the “more-likely-than-not” threshold, the largest amount of tax benefit that is greater than 50 percent likely to be recognized upon ultimate settlement with the taxing authority is recorded. See Note 14, “Income Taxes,” for additional information.

Revenue and Expense Recognition

Automotive

Revenue Recognition: Our Automotive segment records sales when products are shipped and the risks and rewards of ownership have transferred to the customer, the sales price is fixed and determinable, and the collectability of revenue is reasonably assured. Accruals for sales returns and other allowances are provided at point of sale based upon past experience. Adjustments to such returns and allowances are made as new information becomes available. Automotive service revenues are recognized on completion of the service and consist of the labor charged for installing products or maintaining or repairing vehicles. Automotive services revenues are included in other revenues from operations in our consolidated statements of operations however, the sale of any installed parts or materials related to automotive services are included in net sales.

Rebates: Our Automotive segment accrues for rebates pursuant to specific arrangements with certain of its customers, primarily in the aftermarket. Rebates generally provide for price reductions based upon the achievement of specified purchase volumes and are recorded as a reduction of sales as earned by such customers.

Sales and Sales Related Taxes: Our Automotive segment collects and remits taxes assessed by various governmental authorities that are both imposed on and concurrent with revenue-producing transactions with its customers. These taxes may include, but are not limited to, sales, use, value-added, and some excise taxes. The collection of these taxes is reported on a net basis (excluded from revenues).

Shipping and Handling Costs: Our Automotive segment recognizes shipping and handling costs as incurred as a component of cost of products sold in the consolidated statements of operations.

Engineering and Tooling Costs: Pre-production tooling and engineering costs that Federal-Mogul will not own and that will be used in producing products under long-term supply arrangements are expensed as incurred unless the supply arrangement provides it with the noncancelable right to use the tools, or the reimbursement of such costs is agreed to by the customer. Pre-production tooling costs owned by Federal-Mogul are capitalized as part of machinery and equipment, and are depreciated over the shorter of the tool’s expected life or the duration of the related program.

Research and Development: Federal-Mogul expenses research and development (“R&D”) costs as incurred. R&D expense, including product engineering and validation costs, was $195 million, $192 million and $189 million for the year ended December 31, 2017, 2016 and 2015, respectively.

Restructuring: Federal-Mogul has restructuring costs comprised of two types: employee costs (contractual termination benefits) and facility closure costs. Termination benefits are accounted for in accordance with FASB ASC Topic 712, Compensation - Nonretirement Postemployment Benefits, and are recorded when it is probable that employees will be entitled to benefits and the amounts can be reasonably estimated. Estimates of termination benefits are based on the frequency of past termination benefits, the similarity of benefits under the current plan and prior plans, and the existence of statutory required minimum benefits. Termination benefits are also accounted for in accordance with FASB ASC Topic 420, Exit or Disposal Cost Obligations, for one-time termination benefits and are recorded dependent upon future service requirements. Facility closure and other costs are accounted for in accordance with FASB ASC Topic 420 and are recorded when the liability is incurred.

Energy

Revenue recognition: For our Energy segment, revenues for products sold are recorded upon delivery of the products to customers, which is the point at which title is transferred, the customer has assumed the risk of loss, and when payment has been received or collection is reasonably assured. Deferred revenue represents customer prepayments under contracts to guarantee a price and supply of nitrogen fertilizer in quantities expected to be delivered in the next 12 months in the normal course of business. Excise and other taxes collected from customers and remitted to governmental authorities are not included in reported revenues.

Non-monetary product exchanges and certain buy/sell crude oil transactions which are entered into in the normal course of business are included on a net cost basis in cost of goods sold in the consolidated statement of operations.

Shipping Costs: For our Energy segment, pass-through finished goods delivery costs reimbursed by customers are reported in net sales, while an offsetting expense is included in cost of goods sold.

Railcar

Revenue recognition: Revenues from manufactured railcar sales are recognized following completion of manufacturing, inspection, customer acceptance and title transfer, which is when the risk for any damage or loss with respect to the railcars passes to the customer, in accordance with our Railcar segment's contractual terms. Revenues from railcar and industrial components are recorded at the time of product shipment, in accordance with our Railcar segment's contractual terms.

Revenues from railcar leasing are generated from operating leases that are priced as an integrated service that includes amounts related to executory costs, such as certain maintenance, insurance, and ad valorem taxes and are recognized on a straight-line basis per terms of the underlying lease. If railcars are sold under a lease that is less than one year old, the proceeds from the railcars sold that were on lease will be shown on a gross basis in revenues and cost of revenues at the time of sale. Sales of leased railcars that have been on lease for more than one year are recognized as a net gain or loss from the disposal of the long-term asset as a component of earnings from operations.

Revenues from railcar maintenance services are recognized upon completion and shipment of railcars from our Railcar segment's plants. Our Railcar segment does not currently bundle railcar service contracts with new railcar sales. Revenues from engineering and field services are recognized as performed.

Amounts billed prior to meeting revenue recognition criteria are accounted for as deferred revenue and included in accrued expenses and other liabilities on our consolidated balance sheets.

Our Railcar segment records amounts billed to customers for shipping and handling as part of net sales and other revenues from operations in our consolidated statements of operations and records related costs in cost of goods sold and other expenses from operations.

Our Railcar segment presents any sales tax assessed by a governmental authority that is directly imposed on a revenue-producing transaction between a seller and a customer on a net basis.

Gaming

Revenue Recognition and Promotional Allowances: Casino revenue represents the difference between wins and losses from gaming activities, and is reported net of cash and free play incentives redeemed by customers. Room, food and beverage and other operating revenues are recognized at the time the goods or services are provided. Tropicana collects taxes from customers at the point of sale on transactions subject to sales and other taxes. Revenues are recorded net of any taxes collected. The majority of our casino revenue is counted in the form of cash and chips and, therefore, is not subject to any significant or complex estimation. The retail value of rooms, food and beverage and other services provided to customers on a complimentary basis is included in gross revenues and then deducted as promotional allowances.

Metals

Revenue Recognition: PSC Metals' primary source of revenue is from the sale of processed ferrous scrap metal, non-ferrous scrap metals, steel pipe and steel plate. PSC Metals also generates revenues from sales of secondary plate and pipe, the brokering of scrap metals and from services performed. All sales are recognized when title passes to the customer. Revenues from services are recognized as the service is performed. Sales adjustments related to price and weight differences are reflected as a reduction of revenues when settled.

Mining

Revenue recognition: Our Mining segment recognizes revenue when title, ownership, and risk of loss pass to the customer, all of which occurs upon shipment or delivery of the product and is based on the applicable shipping terms. Revenue is measured at the fair value of the consideration received or receivable, with any adjustments as a result of provisional pricing recorded against revenue.

Food Packaging

Revenue Recognition: Revenues are recognized at the time products are shipped to the customer, under F.O.B. shipping point or F.O.B. port terms, which is the point at which title is transferred, the customer has the assumed risk of loss, and payment has been received or collection is reasonably assumed. Revenues are net of discounts, rebates and allowances. Viskase records all labor, raw materials, in-bound freight, plant receiving and purchasing, warehousing, handling and distribution costs as a component of costs of goods sold.

Real Estate

Revenue Recognition: Revenue from real estate sales and related costs are recognized at the time of closing primarily by specific identification. Substantially all of the property comprising our net lease portfolio is leased to others under long-term net leases and we account for these leases in accordance with applicable U.S. GAAP. We account for our leases as follows: (i) under the financing method, (x) minimum lease payments to be received plus the estimated value of the property at the end of the lease are considered the gross investment in the lease and (y) unearned income, representing the difference between gross investment and actual cost of the leased property, is amortized to income over the lease term so as to produce a constant periodic rate of return on the net investment in the lease; and (ii) under the operating method, revenue is recognized as rentals become due, and expenses (including depreciation) are charged to operations as incurred.

Home Fashion

Revenue Recognition: WPH records revenue when the following criteria are met: persuasive evidence of an arrangement exists, delivery has occurred, the price to the customer is fixed and determinable and collectability is reasonably assured. Unless otherwise agreed in writing, title and risk of loss pass from WPH to the customer when WPH delivers the merchandise to the designated point of delivery, to the designated point of destination or to the designated carrier, free on board. Provisions for certain rebates, sales incentives, product returns and discounts to customers are recorded in the same period the related revenue is recorded.

Sales Incentives: Customer incentives are provided to major WPH customers. These incentives begin to accrue when a commitment has been made to the customer and are recorded as a reduction to sales.

Environmental Liabilities

We recognize environmental liabilities when a loss is probable and reasonably estimable. Such accruals are estimated based on currently available information, existing technology and enacted laws and regulations. Such estimates are based primarily upon the estimated cost of investigation and remediation required and the likelihood that other potentially responsible parties will be able to fulfill their commitments at the sites where we may be jointly and severally liable with such parties. We regularly evaluate and revise estimates for environmental obligations based on expenditures against established reserves and the availability of additional information.

Asset Retirement Obligations

We record asset retirement obligations (“ARO”) in accordance with applicable U.S. GAAP. As defined in applicable U.S. GAAP, ARO refers to a legal obligation to perform an asset retirement activity in which the timing and/or method of settlement are conditional on a future event. An entity is required to recognize a liability for the estimated fair value of an ARO when incurred if the fair value can be reasonably estimated. Our Automotive segment's primary asset retirement activities relate to the removal of hazardous building materials at its facilities. Our Automotive segment records the ARO when liabilities are probably and the amount can be reasonably estimated.

Litigation

On an ongoing basis, we assess the potential liabilities related to any lawsuits or claims brought against us. While it is typically very difficult to determine the timing and ultimate outcome of such actions, we use our best judgment to determine if it is probable that we will incur an expense related to the settlement or final adjudication of such matters and whether a reasonable estimation of such probable loss, if any, can be made. In assessing probable losses, we make estimates of the amount of insurance recoveries, if any. We accrue a liability when we believe a loss is probable and the amount of loss can be reasonably estimated. Due to the inherent uncertainties related to the eventual outcome of litigation and potential insurance recovery, it is possible that certain matters may be resolved for amounts materially different from any provisions or disclosures that we have previously made.

Foreign Currency Translation

Exchange adjustments related to international currency transactions and translation adjustments for international subsidiaries whose functional currency is the U.S. dollar (principally those located in highly inflationary economies) are reflected in the consolidated statements of operations. Translation adjustments of international subsidiaries for which the local currency is the functional currency are reflected in the consolidated balance sheets as a component of accumulated other comprehensive income. Deferred taxes are not provided on translation adjustments, other than for intercompany loans not designated as permanently reinvested, as the earnings of the subsidiaries are considered to be permanently reinvested.

Concentrations of credit risk

Concentrations of credit risk relate primarily to derivative instruments from our Investment segment. See Note 6, “Financial Instruments,” to the consolidated financial statements for further discussion.

Adoption of New Accounting Standards

In July 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2015-11, Simplifying the Measurement of Inventory, which amends FASB Accounting Standards Codification ("ASC") Topic 330, Inventory. This ASU requires entities to measure inventory at the lower of cost or net realizable value and eliminates the option that currently exists for measuring inventory at market value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This ASU is effective beginning with our interim period beginning January 1, 2017. The adoption of this guidance was applied prospectively and did not have a material impact on our consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-07, Simplifying the Transition to the Equity Method of Accounting, which amends FASB ASC Topic 323, Investments - Equity Method and Joint Ventures. This ASU eliminates the retroactive adjustment of an investment that qualifies for the equity method as a result of an increase in the level of ownership or degree of influence as if the equity method had been in effect during all previous periods that the investment had been held. This ASU is effective beginning with our interim period beginning January 1, 2017. The adoption of this guidance did not have a material impact on our consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting, which amends FASB ASC Topic 718, Compensation - Stock Compensation. This ASU simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This ASU is effective beginning with our interim period beginning January 1, 2017. During the first quarter of 2017, the board of directors of the general partner of Icahn Enterprises unanimously approved and adopted the Icahn Enterprises L.P. 2017 Long Term Incentive Plan (the "2017 Incentive Plan"), which became effective during the first quarter of 2017 subject to the approval by holders of a majority of Icahn Enterprises depositary units. The 2017 Incentive Plan permits us to issue depositary units and grant options, restricted units or other unit-based awards to all of our, and our affiliates', employees, consultants, members and partners, as well as the three non-employee directors of our general partner. One million of Icahn Enterprises' depositary units were initially available under the 2017 Incentive Plan. Prior to the adoption of the 2017 Incentive Plan, accounting for unit-based payments did not apply to us. Therefore, the adoption of this guidance in 2017 was the result of the adoption of the 2017 Incentive Plan and which did not have a material impact on our consolidated financial statements.

In October 2016, the FASB issued ASU No. 2016-16, Intra-Entity Transfers of Assets Other Than Inventory, which amends FASB ASC Topic 740, Income Taxes. This ASU requires the recognition of income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Current U.S. GAAP prohibits the recognition of current and deferred incomes taxes for an intra-entity asset transfer until the asset has been sold to an outside party. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. We have elected to early adopt this guidance in the first quarter of 2017. The impact of early adopting this guidance on our consolidated financial statements is a cumulative effect adjustment to decrease our equity attributable to Icahn Enterprises and Icahn Enterprises Holdings as of January 1, 2017 by $47 million to reverse previously deferred charges and recognize them in equity.

In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business, which amends FASB ASC Topic 805, Business Combinations. This ASU provides guidance on what constitutes a business for purposes of applying FASB ASC Topic 805. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. We have elected to early adopt this guidance in the first quarter of 2017. We did not have any material transactions affected by this guidance and therefore, the adoption of this guidance did not have a material impact on our consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment, which amends FASB ASC Topic 350, Intangibles - Goodwill and Other. This ASU simplifies the subsequent measurement of goodwill by eliminating "Step 2" from the goodwill impairment test which, prior to adoption of this ASU, requires comparing the implied fair value of goodwill with its carrying value. By eliminating "Step 2" from the goodwill impairment test, the quantitative analysis of goodwill will result in an impairment loss for the amount that the carrying value of a reporting unit, including goodwill, exceeds its fair value, limited to the total amount of goodwill allocated to the tested reporting unit. While this ASU reduces the complexity and cost of our goodwill impairment tests, it may result in significant differences in the recognition of goodwill impairment. For example, should our reporting units fail "Step 1" of the impairment tests but pass the current "Step 2" impairment tests, we may have more impairments of goodwill under the new guidance. This ASU is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. Early adoption is permitted beginning for interim and annual goodwill impairment tests performed on testing dates after January 1, 2017. We have elected to early adopt this guidance for our interim and annual goodwill impairment tests to be performed on testing dates beginning in 2017. This ASU principally affects our Automotive segment as substantially all of our goodwill balance pertains to our Automotive segment as of December 31, 2017. The adoption of this guidance did not have a material impact on our consolidated financial statements.

Recently Issued Accounting Standards

In May 2014, the FASB issued ASU No. 2014-09, creating a new topic, FASB ASC Topic 606, Revenue from Contracts with Customers, superseding revenue recognition requirements in FASB ASC Topic 605, Revenue Recognition. This ASU requires that an entity recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. In addition, an entity is required to disclose sufficient information to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. This ASU was amended by ASU No. 2015-14, issued in August 2015, which deferred the original effective date by one year; the effective date of this ASU is for fiscal years, and interim reporting periods within those years, beginning after December 15, 2017, using one of two retrospective application methods. In addition, the FASB issued other amendments during 2016 and 2017 to FASB ASC Topic 606 that include implementation guidance to principal versus agent considerations, guidance to identifying performance obligations and licensing guidance and other narrow scope improvements. We have developed an implementation plan to adopt this new ASU. We will adopt these new standards effective January 1, 2018 using the modified retrospective application method which will require a cumulative effect adjustment recognized in equity at such date. We determined this cumulative effect adjustment to be immaterial. No adjustment to revenue for periods prior to adoption will be required. To date, we have not identified any differences in our existing revenue recognition methods that would require material modification under the new standards. Additionally, although we anticipate our internal controls to be modified as necessary, we do not anticipate our internal control framework to materially change as a result of the adoption of these new standards.

In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall, which amends FASB ASC Topic 825, Financial Instruments. This ASU requires that equity investments (except those accounted for under the equity method of accounting or those that result in the consolidation of the investee) to be measured at fair value with changes recognized in earnings. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment. In addition, there were other amendments to certain disclosure and presentation matters pertaining to financial instruments, including the requirement of an entity to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. This ASU is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The amendments in this ASU should be applied by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendments related to equity securities without readily determinable fair values should be applied prospectively to equity investments that exist as of the date of adoption. Early application is permitted for certain matters only. We are currently evaluating the impact of this guidance on our consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which supersedes FASB ASC Topic 840, Leases. This ASU requires the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous guidance. In addition, among other changes to the accounting for leases, this ASU retains the distinction between finance leases and operating leases. The classification criteria for distinguishing between finance leases and operating leases are substantially similar to the classification criteria for distinguishing between capital leases and operating leases in the previous guidance. This ASU is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The amendments in this ASU should be applied using a modified retrospective approach. Early application is permitted. We anticipate our assessment and implementation plan to be ongoing during the remainder of 2018 and are currently unable to reasonably estimate the impact of this guidance on our consolidated financial statements and related disclosures.

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments, which amends FASB ASC Topic 326, Financial Instruments - Credit Losses. This ASU requires financial assets measured at amortized cost to be presented at the net amount to be collected and broadens the information, including forecasted information incorporating more timely information, that an entity must consider in developing its expected credit loss estimate for assets measured. This ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early application is permitted for fiscal years beginning after December 15, 2018. We are currently evaluating the impact of this guidance on our consolidated financial statements.

In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments, which amends FASB ASC Topic 230, Statement of Cash Flows. This ASU seeks to reduce the diversity currently in practice by providing guidance on the presentation of eight specific cash flow issues in the statement of cash flows. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. We are currently evaluating the impact of this guidance on our consolidated statements of cash flows.

In November 2016, the FASB issued ASU No. 2016-18, Restricted Cash, which amends FASB ASC Topic 230, Statement of Cash Flows. This ASU requires that the statement of cash flows explain the change during the period total cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements.

In March 2017, the FASB issued ASU No. 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which amends FASB ASC Topic 715, Compensation - Retirement Benefits. This ASU requires entities to present the service cost component of net periodic benefit cost in the same line item or items in the financial statements as other compensation costs arising from services rendered by the pertinent employees during the period. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-09, Scope of Modification Accounting, which amends FASB ASC Topic 718, Compensation - Stock Compensation. This ASU provides updated guidance about which changes to the terms and conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements.

In August 2017, the FASB issued ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities, which amends FASB ASC Topic 815, Derivatives and Hedging. This ASU includes amendments to existing guidance to better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. This ASU is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements.

In February 2018, the FASB issued ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which amends FASB ASC Topic 220, Income Statement - Reporting Comprehensive Income. This ASU allows a reclassification out of accumulated other comprehensive loss within equity for standard tax effects resulting from the Tax Cuts and Jobs Act and consequently, eliminates the stranded tax effects resulting from the Tax Cuts and Jobs Act. This ASU is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements.