Summary of Significant Accounting Policies (Policies)	12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]
Principles of Consolidation and Basis of Preparation	Principles of Consolidation and Basis of Preparation The consolidated financial statements include the accounts of Mattel, Inc. and its subsidiaries. All wholly and majority-owned subsidiaries are consolidated and included in Mattel’s consolidated financial statements. Mattel does not have any minority stock ownership interests in which it has a controlling financial interest that would require consolidation. All significant intercompany accounts and transactions have been eliminated upon consolidation.
Use of Estimates	Use of Estimates Preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“US GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could ultimately differ from those estimates.
Cash and Equivalents	Cash and Equivalents Cash and equivalents include short-term investments, which are highly liquid investments with maturities of three months or less when purchased. Such investments are stated at cost, which approximates market value.
Accounts Receivable and Allowance for Doubtful Accounts	Accounts Receivable and Allowance for Doubtful Accounts Credit is granted to customers on an unsecured basis. Credit limits and payment terms are established based on extensive evaluations made on an ongoing basis throughout the fiscal year of the financial performance, cash generation, financing availability, and liquidity status of each customer. Customers are reviewed at least annually, with more frequent reviews performed as necessary, based on the customers’ financial condition and the level of credit being extended. For customers who are experiencing financial difficulties, management performs additional financial analyses before shipping to those customers on credit. Mattel uses a variety of financial arrangements to ensure collectibility of accounts receivable of customers deemed to be a credit risk, including requiring letters of credit, purchasing various forms of credit insurance with unrelated third parties, factoring, or requiring cash in advance of shipment. Mattel records an allowance for doubtful accounts based on management’s assessment of the business environment, customers’ financial condition, historical collection experience, accounts receivable aging, and customer disputes.
Inventories	Inventories Inventories, net of an allowance for excess quantities and obsolescence, are stated at the lower of cost or market. Inventory allowances are charged to cost of sales and establish a lower cost basis for the inventory. Cost is determined by the first-in, first-out method.
Property, Plant, and Equipment	Property, Plant, and Equipment Property, plant, and equipment are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method over estimated useful lives of 10 to 30 years for buildings, 3 to 15 years for machinery and equipment, 3 to 10 years for software, and 10 to 20 years, not to exceed the lease term, for leasehold improvements. Tools, dies, and molds are depreciated using the straight-line method over 3 years. Estimated useful lives are periodically reviewed and, where appropriate, changes are made prospectively. The carrying value of property, plant, and equipment is reviewed when events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. Any potential impairment identified is assessed by evaluating the operating performance and future undiscounted cash flows of the underlying assets. When property is sold or retired, the cost of the property and the related accumulated depreciation are removed from the consolidated balance sheet, and any resulting gain or loss is included in the results of operations.
Goodwill	Goodwill and Intangible Assets Goodwill is allocated to various reporting units, which are at the operating segment level, for purposes of evaluating whether goodwill is impaired. Mattel’s reporting units are: (i) North America, (ii) International, and (iii) American Girl. Components of the operating segments have been aggregated into a single reporting unit as the components have similar economic characteristics. The similar economic characteristics include the nature of the products, the nature of the production processes, the customers, and the manner in which the products are distributed. Mattel tests its goodwill for impairment annually in the third quarter and whenever events or changes in circumstances indicate that the carrying value of a reporting unit may exceed its fair value.
Nonamortizable Intangible Assets	Mattel tests its nonamortizable intangible assets, including trademarks and trade names, for impairment by comparing the estimated fair values of the nonamortizable intangible assets with the carrying values. Mattel tests nonamortizable intangible assets for impairment annually in the third quarter or whenever events or changes in circumstances indicate that the carrying value may exceed its fair value.
Amortizable Intangible Assets	Mattel also tests its amortizable intangible assets, which are primarily comprised of trademarks and trade names, for impairment whenever events or changes in circumstances indicate that the carrying value of the asset may not be recovered.
Foreign Currency Translation Exposure	Foreign Currency Translation Exposure Mattel’s reporting currency is the US dollar. The translation of its net investments in subsidiaries with non-US dollar functional currencies subjects Mattel to the impact of currency exchange rate fluctuations in its results of operations and financial position. Assets and liabilities of subsidiaries with non-US dollar functional currencies are translated into US dollars at year-end exchange rates. Income, expense, and cash flow items are translated at weighted average exchange rates prevailing during the year. The resulting currency translation adjustments are recorded as a component of accumulated other comprehensive loss within stockholders’ equity. Mattel’s primary currency translation exposures in 2015 were related to its net investments in entities having functional currencies denominated in the Euro, Brazilian real, Mexican peso, and British pound sterling.
Foreign Currency Transaction Exposure	Foreign Currency Transaction Exposure Currency exchange rate fluctuations may impact Mattel’s results of operations and cash flows. Mattel’s currency transaction exposures include gains and losses realized on unhedged inventory purchases and unhedged receivables and payables balances that are denominated in a currency other than the applicable functional currency. Gains and losses on unhedged inventory purchases and other transactions associated with operating activities are recorded in the components of operating income in the consolidated statement of operations. Gains and losses on unhedged intercompany loans and advances are recorded as a component of other non-operating (income) expense, net in the consolidated statement of operations in the period in which the currency exchange rate changes. Inventory transactions denominated in the Euro, British pound sterling, Mexican peso, Australian dollar, Canadian dollar, Brazilian real, Russian ruble, Malaysian ringgit, and Indonesian rupiah were the primary transactions that caused foreign currency transaction exposure for Mattel in 2015.
Derivative Instruments	Derivative Instruments Mattel uses foreign currency forward exchange contracts as cash flow hedges primarily to hedge its purchases and sales of inventory denominated in foreign currencies. At the inception of the contracts, Mattel designates these derivatives as cash flow hedges and documents the relationship of the hedge to the underlying transaction. Hedge effectiveness is assessed at inception and throughout the life of the hedge to ensure the hedge qualifies for hedge accounting. Changes in fair value associated with hedge ineffectiveness, if any, are recorded in the results of operations. Changes in fair value of cash flow hedge derivatives are deferred and recorded as part of accumulated other comprehensive loss in stockholders’ equity until the underlying transaction affects earnings. In the event that an anticipated transaction is no longer likely to occur, Mattel recognizes the change in fair value of the derivative in its results of operations in the period the determination is made. Additionally, Mattel uses foreign currency forward exchange contracts to hedge intercompany loans and advances denominated in foreign currencies. Due to the short-term nature of the contracts involved, Mattel does not use hedge accounting for these contracts, and as such, changes in fair value are recorded in the period of change in the consolidated statements of operations.
Revenue Recognition	Revenue Recognition and Sales Adjustments Revenue is recognized upon shipment or upon receipt of products by the customer, depending on the terms, provided that: there are no uncertainties regarding customer acceptance; persuasive evidence of an agreement exists documenting the specific terms of the transaction; the sales price is fixed or determinable; and collectibility is reasonably assured. Management assesses the business environment, the customer’s financial condition, historical collection experience, accounts receivable aging, and customer disputes to determine whether collectibility is reasonably assured. If collectibility is not considered reasonably assured at the time of sale, Mattel does not recognize revenue until collection occurs. Value added taxes are recorded on a net basis and are excluded from revenue.
Sales Adjustments	Mattel routinely enters into arrangements with its customers to provide sales incentives, support customer promotions, and provide allowances for returns and defective merchandise. Such programs are based primarily on customer purchases, customer performance of specified promotional activities, and other specified factors such as sales to consumers. The costs of these programs are recorded as sales adjustments that reduce gross revenue in the period the related revenue is recognized.
Advertising and Promotion Costs	Advertising and Promotion Costs Costs of media advertising are expensed the first time the advertising takes place, except for direct-response advertising, which is capitalized and amortized over its expected period of future benefits. Direct-response advertising consists primarily of catalog production and mailing costs, which are generally amortized within three months from the date the catalogs are mailed.
Product Recalls and Withdrawals	Product Recalls and Withdrawals Mattel establishes a reserve for product recalls and withdrawals on a product-specific basis when circumstances giving rise to the recall or withdrawal become known. Facts and circumstances related to the recall or withdrawal, including where the product affected by the recall or withdrawal is located (e.g., with consumers, in customers’ inventory, or in Mattel’s inventory), cost estimates for shipping and handling for returns, cost estimates for communicating the recall or withdrawal to consumers and customers, and cost estimates for parts and labor if the recalled or withdrawn product is deemed to be repairable, are considered when establishing a product recall or withdrawal reserve. These factors are updated and reevaluated each period, and the related reserves are adjusted when these factors indicate that the recall or withdrawal reserve is either not sufficient to cover or exceeds the estimated product recall or withdrawal expenses.
Design and Development Costs	Design and Development Costs Product design and development costs primarily include employee compensation and outside services and are charged to the results of operations as incurred.
Employee Benefit Plans	Employee Benefit Plans Mattel and certain of its subsidiaries have retirement and other postretirement benefit plans covering substantially all employees of these companies. Actuarial valuations are used in determining amounts recognized in the financial statements for certain retirement and other postretirement benefit plans (see “Note 4 to the Consolidated Financial Statements—Employee Benefit Plans”).
Share-Based Payments	Share-Based Payments Mattel recognizes the cost of employee share-based payment awards on a straight-line attribution basis over the requisite employee service period, net of estimated forfeitures. In determining when additional tax benefits associated with share-based payment exercises are recognized, Mattel follows the ordering of deductions under the tax law, which allows deductions for share-based payment exercises to be utilized before previously existing net operating loss carryforwards. Determining the fair value of share-based awards at the measurement date requires judgment, including estimating the expected term that stock options will be outstanding prior to exercise, the associated volatility, and the expected dividends. Mattel estimates the fair value of options granted using the Black-Scholes valuation model. The expected life of the options used in this calculation is the period of time the options are expected to be outstanding and has been determined based on historical exercise experience. Expected stock price volatility is based on the historical volatility of Mattel’s stock for a period approximating the expected life, the expected dividend yield is based on Mattel’s most recent actual annual dividend payout, and the risk-free interest rate is based on the implied yield available on US Treasury zero-coupon issues approximating the expected life. Judgment is also required in estimating the amount of share-based awards that will be forfeited prior to vesting.
Income Taxes	Income Taxes Certain income and expense items are accounted for differently for financial reporting and income tax purposes. Deferred income tax assets and liabilities are determined based on the difference between the financial statement and tax bases of assets and liabilities, applying enacted statutory income tax rates in effect for the year in which the differences are expected to reverse. In the normal course of business, Mattel is regularly audited by federal, state, local, and foreign tax authorities. The ultimate settlement of any particular issue with the applicable taxing authority could have a material impact on Mattel’s consolidated financial statements.
Venezuelan Operations	Venezuelan Operations Since 2010, Mattel has accounted for Venezuela as a highly inflationary economy and, accordingly, Mattel’s Venezuelan subsidiary uses the US dollar as its functional currency. Mattel’s Venezuelan subsidiary has been unable to access US dollars as a result of currency restrictions enacted by the Venezuelan government. These currency restrictions, along with economic and political instability, continue to impact the operating results of Mattel’s Venezuelan subsidiary. Mattel's Venezuelan subsidiary currently uses the official exchange rate as its remeasurement rate. During February 2015, the Venezuelan government announced the launch of a new three-tiered currency exchange platform, which included a new exchange system called the Marginal Currency System ("SIMADI"). During February 2016, the Venezuelan government revised its official exchange rate to 10.00 BsF per US dollar and eliminated the intermediate tier. The official exchange rate will be used for essential imports, such as food and medicine, and the SIMADI rate will be used for all other transactions. Had Mattel used the new official exchange rate of 10.00 BsF per US dollar as of December 31, 2015 as its remeasurement rate, it would have recognized a pre-tax charge of approximately $8 million in its consolidated statements of operations. Had Mattel used the SIMADI rate of 198.70 BsF per US dollar as of December 31, 2015 as its remeasurement rate, it would have recognized a pre-tax charge of approximately $22 million in its consolidated statements of operations. However, Mattel is continuing to evaluate its remeasurement rate and is considering a change of its remeasurement rate to the SIMADI rate in the first quarter of 2016, which would result in a pre-tax charge of approximately $22 million. Mattel’s Venezuelan subsidiary represented less than 0.01% of Mattel’s consolidated net sales in 2015 and had approximately $22 million of net monetary assets denominated in Venezuelan bolivar fuerte as of December 31, 2015. If the Venezuelan bolivar fuerte significantly devalues in the future, or if the economic or political conditions in Venezuela significantly worsen, Mattel may consider ceasing operations of its Venezuelan subsidiary, which could result in a pre-tax charge to its consolidated statement of operations of up to $95 million.
New Accounting Pronouncements	New Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in Accounting Standards Codification (“ASC”) 605, Revenue Recognition, and most industry-specific guidance. The core principle of the guidance is that an entity should 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 in exchange for those goods or services. The new guidance establishes a five-step model to achieve that core principle and also requires additional disclosures about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts. ASU 2014-09 was originally effective for interim and annual reporting periods beginning after December 15, 2016. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606) – Deferral of the Effective Date, which defers the effective date to annual reporting periods beginning after December 15, 2017. Early application is permitted after December 15, 2016. Mattel is currently evaluating the impact of the adoption of ASU 2014-09 and ASU 2015-14 on its operating results and financial position. In June 2014, the FASB issued ASU 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, which requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. ASU 2014-12 will be effective for interim and annual reporting periods beginning after December 15, 2015. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2014-12 on its operating results and financial position. In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the associated debt liability. ASU 2015-03 will not change the amortization of debt issuance costs, which will continue to follow the existing accounting guidance. In August 2015, the FASB issued ASU 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which permits debt issuance costs associated with line-of-credit arrangements to continue to be deferred and presented as an asset in the balance sheet and subsequently amortized ratably over the term of the line-of-credit arrangement. ASU 2015-03 and ASU 2015-15 will be effective for interim and annual reporting periods beginning after December 15, 2015. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-03 and ASU 2015-15 on its operating results and financial position. In May 2015, the FASB issued ASU 2015-07, Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent), which removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. ASU 2015-07 additionally removes the requirement to make certain disclosures for all investments that are eligible to be measured at fair value using the net asset value per share practical expedient. ASU 2015-07 will be effective for interim and annual reporting periods beginning after December 15, 2015. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-07 on its financial statement disclosures. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory, which requires an entity that uses first-in, first-out or average cost to measure its inventory at the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. ASU 2015-11 will be effective for interim and annual reporting periods beginning after December 15, 2016. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-11 on its operating results and financial position. In September 2015, the FASB issued ASU 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which requires that an acquirer recognize adjustments to provisional amounts recognized in a business combination in the reporting period in which the adjustment amounts are determined. It also requires disclosure of the adjustment recorded in current period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 eliminates the requirement to retrospectively revise comparative information for prior periods. ASU 2015-16 will be effective for interim and annual reporting periods beginning after December 15, 2015. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-16 on its financial statement disclosures. In November 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes, which conforms US GAAP to IFRS by requiring that all deferred taxes be presented as noncurrent. This guidance does not change the existing requirement that only permits offsetting within a jurisdiction. ASU 2015-17 will be effective for interim and annual reporting periods beginning after December 15, 2016. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-17 on its financial position.
Income Tax Uncertainties and Unrecognized Tax Benefits Policy	In assessing whether uncertain tax positions should be recognized in its financial statements, Mattel first determines whether it is more-likely-than-not that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes, based on the technical merits of the position. In evaluating whether a tax position has met the more-likely-than-not recognition threshold, Mattel presumes that the position will be examined by the appropriate taxing authority that would have full knowledge of all relevant information. For tax positions that meet the more-likely-than-not recognition threshold, Mattel measures the amount of benefit recognized in the financial statements at the largest amount of benefit that is greater than 50 percent likely of being realized upon ultimate settlement. Mattel recognizes unrecognized tax benefits in the first financial reporting period in which information becomes available indicating that such benefits will more-likely-than-not be realized. Mattel records unrecognized tax benefits for US federal, state, local, and foreign tax positions related primarily to transfer pricing, tax credits claimed, tax nexus, and apportionment. For each reporting period, management applies a consistent methodology to measure unrecognized tax benefits, and all unrecognized tax benefits are reviewed periodically and adjusted as circumstances warrant. Mattel’s measurement of its unrecognized tax benefits is based on management’s assessment of all relevant information, including prior audit experience, the status of audits, conclusions of tax audits, lapsing of applicable statutes of limitations, identification of new issues, and any administrative guidance or developments.
Debt Policy	The proportion of unamortized debt issuance costs from the prior facility renewal related to creditors involved in both the prior facility and amended facility and borrowing costs incurred as a result of the amendment were deferred, and such costs will be amortized over the term of the amended facility.
Earnings Per Share Policy	Unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and are included in the computation of earnings per share pursuant to the two-class method. Certain of Mattel’s RSUs are considered participating securities because they contain nonforfeitable rights to dividend equivalents. Under the two-class method, net income is reduced by the amount of dividends declared in the period for each class of common stock and participating securities. The remaining undistributed earnings are then allocated to common stock and participating securities as if all of the net income for the period had been distributed. Basic earnings per common share excludes dilution and is calculated by dividing net income allocable to common shares by the weighted average number of common shares outstanding for the period. Diluted earnings per common share is calculated by dividing net income allocable to common shares by the weighted average number of common shares for the period, as adjusted for the potential dilutive effect of non-participating share-based awards.
Segment Information	Mattel does not include sales adjustments such as trade discounts and other allowances in the calculation of segment revenues (referred to as “gross sales”). Mattel records these adjustments in its financial accounting systems at the time of sale to each customer, but the adjustments are not allocated to individual products. For this reason, Mattel’s CODM uses gross sales by segment as one of the metrics to measure segment performance. Such sales adjustments are included in the determination of segment income from operations based on the adjustments recorded in the financial accounting systems. Segment income represents each segment’s operating income, while consolidated operating income represents income from operations before net interest, other non-operating income, and income taxes as reported in the consolidated statements of operations. The corporate and other expense category includes costs not allocated to individual segments, including charges related to incentive compensation, share-based payments, and corporate headquarters functions managed on a worldwide basis, and the impact of changes in foreign currency rates on intercompany transactions.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

Principles of Consolidation and Basis of Preparation

The consolidated financial statements include the accounts of Mattel, Inc. and its subsidiaries. All wholly and majority-owned subsidiaries are consolidated and included in Mattel’s consolidated financial statements. Mattel does not have any minority stock ownership interests in which it has a controlling financial interest that would require consolidation. All significant intercompany accounts and transactions have been eliminated upon consolidation.

Use of Estimates

Preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“US GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could ultimately differ from those estimates.

Cash and Equivalents

Cash and equivalents include short-term investments, which are highly liquid investments with maturities of three months or less when purchased. Such investments are stated at cost, which approximates market value.

Accounts Receivable and Allowance for Doubtful Accounts

Credit is granted to customers on an unsecured basis. Credit limits and payment terms are established based on extensive evaluations made on an ongoing basis throughout the fiscal year of the financial performance, cash generation, financing availability, and liquidity status of each customer. Customers are reviewed at least annually, with more frequent reviews performed as necessary, based on the customers’ financial condition and the level of credit being extended. For customers who are experiencing financial difficulties, management performs additional financial analyses before shipping to those customers on credit. Mattel uses a variety of financial arrangements to ensure collectibility of accounts receivable of customers deemed to be a credit risk, including requiring letters of credit, purchasing various forms of credit insurance with unrelated third parties, factoring, or requiring cash in advance of shipment.

Mattel records an allowance for doubtful accounts based on management’s assessment of the business environment, customers’ financial condition, historical collection experience, accounts receivable aging, and customer disputes.

Inventories

Inventories, net of an allowance for excess quantities and obsolescence, are stated at the lower of cost or market. Inventory allowances are charged to cost of sales and establish a lower cost basis for the inventory. Cost is determined by the first-in, first-out method.

Property, Plant, and Equipment

Property, plant, and equipment are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method over estimated useful lives of 10 to 30 years for buildings, 3 to 15 years for machinery and equipment, 3 to 10 years for software, and 10 to 20 years, not to exceed the lease term, for leasehold improvements. Tools, dies, and molds are depreciated using the straight-line method over 3 years. Estimated useful lives are periodically reviewed and, where appropriate, changes are made prospectively. The carrying value of property, plant, and equipment is reviewed when events or changes in circumstances indicate that the carrying value of an asset may not be recoverable. Any potential impairment identified is assessed by evaluating the operating performance and future undiscounted cash flows of the underlying assets. When property is sold or retired, the cost of the property and the related accumulated depreciation are removed from the consolidated balance sheet, and any resulting gain or loss is included in the results of operations.

Goodwill

Goodwill and Intangible Assets

Goodwill is allocated to various reporting units, which are at the operating segment level, for purposes of evaluating whether goodwill is impaired. Mattel’s reporting units are: (i) North America, (ii) International, and (iii) American Girl. Components of the operating segments have been aggregated into a single reporting unit as the components have similar economic characteristics. The similar economic characteristics include the nature of the products, the nature of the production processes, the customers, and the manner in which the products are distributed. Mattel tests its goodwill for impairment annually in the third quarter and whenever events or changes in circumstances indicate that the carrying value of a reporting unit may exceed its fair value.

Nonamortizable Intangible Assets

Mattel tests its nonamortizable intangible assets, including trademarks and trade names, for impairment by comparing the estimated fair values of the nonamortizable intangible assets with the carrying values. Mattel tests nonamortizable intangible assets for impairment annually in the third quarter or whenever events or changes in circumstances indicate that the carrying value may exceed its fair value.

Amortizable Intangible Assets

Mattel also tests its amortizable intangible assets, which are primarily comprised of trademarks and trade names, for impairment whenever events or changes in circumstances indicate that the carrying value of the asset may not be recovered.

Foreign Currency Translation Exposure

Mattel’s reporting currency is the US dollar. The translation of its net investments in subsidiaries with non-US dollar functional currencies subjects Mattel to the impact of currency exchange rate fluctuations in its results of operations and financial position. Assets and liabilities of subsidiaries with non-US dollar functional currencies are translated into US dollars at year-end exchange rates. Income, expense, and cash flow items are translated at weighted average exchange rates prevailing during the year. The resulting currency translation adjustments are recorded as a component of accumulated other comprehensive loss within stockholders’ equity. Mattel’s primary currency translation exposures in 2015 were related to its net investments in entities having functional currencies denominated in the Euro, Brazilian real, Mexican peso, and British pound sterling.

Foreign Currency Transaction Exposure

Currency exchange rate fluctuations may impact Mattel’s results of operations and cash flows. Mattel’s currency transaction exposures include gains and losses realized on unhedged inventory purchases and unhedged receivables and payables balances that are denominated in a currency other than the applicable functional currency. Gains and losses on unhedged inventory purchases and other transactions associated with operating activities are recorded in the components of operating income in the consolidated statement of operations. Gains and losses on unhedged intercompany loans and advances are recorded as a component of other non-operating (income) expense, net in the consolidated statement of operations in the period in which the currency exchange rate changes. Inventory transactions denominated in the Euro, British pound sterling, Mexican peso, Australian dollar, Canadian dollar, Brazilian real, Russian ruble, Malaysian ringgit, and Indonesian rupiah were the primary transactions that caused foreign currency transaction exposure for Mattel in 2015.

Derivative Instruments

Mattel uses foreign currency forward exchange contracts as cash flow hedges primarily to hedge its purchases and sales of inventory denominated in foreign currencies. At the inception of the contracts, Mattel designates these derivatives as cash flow hedges and documents the relationship of the hedge to the underlying transaction. Hedge effectiveness is assessed at inception and throughout the life of the hedge to ensure the hedge qualifies for hedge accounting. Changes in fair value associated with hedge ineffectiveness, if any, are recorded in the results of operations. Changes in fair value of cash flow hedge derivatives are deferred and recorded as part of accumulated other comprehensive loss in stockholders’ equity until the underlying transaction affects earnings. In the event that an anticipated transaction is no longer likely to occur, Mattel recognizes the change in fair value of the derivative in its results of operations in the period the determination is made.

Additionally, Mattel uses foreign currency forward exchange contracts to hedge intercompany loans and advances denominated in foreign currencies. Due to the short-term nature of the contracts involved, Mattel does not use hedge accounting for these contracts, and as such, changes in fair value are recorded in the period of change in the consolidated statements of operations.

Revenue Recognition

Revenue Recognition and Sales Adjustments

Revenue is recognized upon shipment or upon receipt of products by the customer, depending on the terms, provided that: there are no uncertainties regarding customer acceptance; persuasive evidence of an agreement exists documenting the specific terms of the transaction; the sales price is fixed or determinable; and collectibility is reasonably assured. Management assesses the business environment, the customer’s financial condition, historical collection experience, accounts receivable aging, and customer disputes to determine whether collectibility is reasonably assured. If collectibility is not considered reasonably assured at the time of sale, Mattel does not recognize revenue until collection occurs. Value added taxes are recorded on a net basis and are excluded from revenue.

Sales Adjustments

Mattel routinely enters into arrangements with its customers to provide sales incentives, support customer promotions, and provide allowances for returns and defective merchandise. Such programs are based primarily on customer purchases, customer performance of specified promotional activities, and other specified factors such as sales to consumers. The costs of these programs are recorded as sales adjustments that reduce gross revenue in the period the related revenue is recognized.

Advertising and Promotion Costs

Costs of media advertising are expensed the first time the advertising takes place, except for direct-response advertising, which is capitalized and amortized over its expected period of future benefits. Direct-response advertising consists primarily of catalog production and mailing costs, which are generally amortized within three months from the date the catalogs are mailed.

Product Recalls and Withdrawals

Mattel establishes a reserve for product recalls and withdrawals on a product-specific basis when circumstances giving rise to the recall or withdrawal become known. Facts and circumstances related to the recall or withdrawal, including where the product affected by the recall or withdrawal is located (e.g., with consumers, in customers’ inventory, or in Mattel’s inventory), cost estimates for shipping and handling for returns, cost estimates for communicating the recall or withdrawal to consumers and customers, and cost estimates for parts and labor if the recalled or withdrawn product is deemed to be repairable, are considered when establishing a product recall or withdrawal reserve. These factors are updated and reevaluated each period, and the related reserves are adjusted when these factors indicate that the recall or withdrawal reserve is either not sufficient to cover or exceeds the estimated product recall or withdrawal expenses.

Design and Development Costs

Product design and development costs primarily include employee compensation and outside services and are charged to the results of operations as incurred.

Employee Benefit Plans

Mattel and certain of its subsidiaries have retirement and other postretirement benefit plans covering substantially all employees of these companies. Actuarial valuations are used in determining amounts recognized in the financial statements for certain retirement and other postretirement benefit plans (see “Note 4 to the Consolidated Financial Statements—Employee Benefit Plans”).

Share-Based Payments

Mattel recognizes the cost of employee share-based payment awards on a straight-line attribution basis over the requisite employee service period, net of estimated forfeitures. In determining when additional tax benefits associated with share-based payment exercises are recognized, Mattel follows the ordering of deductions under the tax law, which allows deductions for share-based payment exercises to be utilized before previously existing net operating loss carryforwards.

Determining the fair value of share-based awards at the measurement date requires judgment, including estimating the expected term that stock options will be outstanding prior to exercise, the associated volatility, and the expected dividends. Mattel estimates the fair value of options granted using the Black-Scholes valuation model. The expected life of the options used in this calculation is the period of time the options are expected to be outstanding and has been determined based on historical exercise experience. Expected stock price volatility is based on the historical volatility of Mattel’s stock for a period approximating the expected life, the expected dividend yield is based on Mattel’s most recent actual annual dividend payout, and the risk-free interest rate is based on the implied yield available on US Treasury zero-coupon issues approximating the expected life. Judgment is also required in estimating the amount of share-based awards that will be forfeited prior to vesting.

Income Taxes

Certain income and expense items are accounted for differently for financial reporting and income tax purposes. Deferred income tax assets and liabilities are determined based on the difference between the financial statement and tax bases of assets and liabilities, applying enacted statutory income tax rates in effect for the year in which the differences are expected to reverse.

In the normal course of business, Mattel is regularly audited by federal, state, local, and foreign tax authorities. The ultimate settlement of any particular issue with the applicable taxing authority could have a material impact on Mattel’s consolidated financial statements.

Venezuelan Operations

Since 2010, Mattel has accounted for Venezuela as a highly inflationary economy and, accordingly, Mattel’s Venezuelan subsidiary uses the US dollar as its functional currency. Mattel’s Venezuelan subsidiary has been unable to access US dollars as a result of currency restrictions enacted by the Venezuelan government. These currency restrictions, along with economic and political instability, continue to impact the operating results of Mattel’s Venezuelan subsidiary. Mattel's Venezuelan subsidiary currently uses the official exchange rate as its remeasurement rate.

During February 2015, the Venezuelan government announced the launch of a new three-tiered currency exchange platform, which included a new exchange system called the Marginal Currency System ("SIMADI"). During February 2016, the Venezuelan government revised its official exchange rate to 10.00 BsF per US dollar and eliminated the intermediate tier. The official exchange rate will be used for essential imports, such as food and medicine, and the SIMADI rate will be used for all other transactions.

Had Mattel used the new official exchange rate of 10.00 BsF per US dollar as of December 31, 2015 as its remeasurement rate, it would have recognized a pre-tax charge of approximately $8 million in its consolidated statements of operations. Had Mattel used the SIMADI rate of 198.70 BsF per US dollar as of December 31, 2015 as its remeasurement rate, it would have recognized a pre-tax charge of approximately $22 million in its consolidated statements of operations. However, Mattel is continuing to evaluate its remeasurement rate and is considering a change of its remeasurement rate to the SIMADI rate in the first quarter of 2016, which would result in a pre-tax charge of approximately $22 million.

Mattel’s Venezuelan subsidiary represented less than 0.01% of Mattel’s consolidated net sales in 2015 and had approximately $22 million of net monetary assets denominated in Venezuelan bolivar fuerte as of December 31, 2015. If the Venezuelan bolivar fuerte significantly devalues in the future, or if the economic or political conditions in Venezuela significantly worsen, Mattel may consider ceasing operations of its Venezuelan subsidiary, which could result in a pre-tax charge to its consolidated statement of operations of up to $95 million.

New Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in Accounting Standards Codification (“ASC”) 605, Revenue Recognition, and most industry-specific guidance. The core principle of the guidance is that an entity should 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 in exchange for those goods or services. The new guidance establishes a five-step model to achieve that core principle and also requires additional disclosures about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts. ASU 2014-09 was originally effective for interim and annual reporting periods beginning after December 15, 2016. In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606) – Deferral of the Effective Date, which defers the effective date to annual reporting periods beginning after December 15, 2017. Early application is permitted after December 15, 2016. Mattel is currently evaluating the impact of the adoption of ASU 2014-09 and ASU 2015-14 on its operating results and financial position.

In June 2014, the FASB issued ASU 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, which requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. ASU 2014-12 will be effective for interim and annual reporting periods beginning after December 15, 2015. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2014-12 on its operating results and financial position.

In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the associated debt liability. ASU 2015-03 will not change the amortization of debt issuance costs, which will continue to follow the existing accounting guidance. In August 2015, the FASB issued ASU 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which permits debt issuance costs associated with line-of-credit arrangements to continue to be deferred and presented as an asset in the balance sheet and subsequently amortized ratably over the term of the line-of-credit arrangement. ASU 2015-03 and ASU 2015-15 will be effective for interim and annual reporting periods beginning after December 15, 2015. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-03 and ASU 2015-15 on its operating results and financial position.

In May 2015, the FASB issued ASU 2015-07, Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent), which removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. ASU 2015-07 additionally removes the requirement to make certain disclosures for all investments that are eligible to be measured at fair value using the net asset value per share practical expedient. ASU 2015-07 will be effective for interim and annual reporting periods beginning after December 15, 2015. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-07 on its financial statement disclosures.

In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory, which requires an entity that uses first-in, first-out or average cost to measure its inventory at the lower of cost or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. ASU 2015-11 will be effective for interim and annual reporting periods beginning after December 15, 2016. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-11 on its operating results and financial position.

In September 2015, the FASB issued ASU 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which requires that an acquirer recognize adjustments to provisional amounts recognized in a business combination in the reporting period in which the adjustment amounts are determined. It also requires disclosure of the adjustment recorded in current period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 eliminates the requirement to retrospectively revise comparative information for prior periods. ASU 2015-16 will be effective for interim and annual reporting periods beginning after December 15, 2015. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-16 on its financial statement disclosures.

In November 2015, the FASB issued ASU 2015-17, Balance Sheet Classification of Deferred Taxes, which conforms US GAAP to IFRS by requiring that all deferred taxes be presented as noncurrent. This guidance does not change the existing requirement that only permits offsetting within a jurisdiction. ASU 2015-17 will be effective for interim and annual reporting periods beginning after December 15, 2016. Early application is permitted. Mattel is currently evaluating the impact of the adoption of ASU 2015-17 on its financial position.

Income Tax Uncertainties and Unrecognized Tax Benefits Policy

In assessing whether uncertain tax positions should be recognized in its financial statements, Mattel first determines whether it is more-likely-than-not that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes, based on the technical merits of the position. In evaluating whether a tax position has met the more-likely-than-not recognition threshold, Mattel presumes that the position will be examined by the appropriate taxing authority that would have full knowledge of all relevant information. For tax positions that meet the more-likely-than-not recognition threshold, Mattel measures the amount of benefit recognized in the financial statements at the largest amount of benefit that is greater than 50 percent likely of being realized upon ultimate settlement. Mattel recognizes unrecognized tax benefits in the first financial reporting period in which information becomes available indicating that such benefits will more-likely-than-not be realized.

Mattel records unrecognized tax benefits for US federal, state, local, and foreign tax positions related primarily to transfer pricing, tax credits claimed, tax nexus, and apportionment. For each reporting period, management applies a consistent methodology to measure unrecognized tax benefits, and all unrecognized tax benefits are reviewed periodically and adjusted as circumstances warrant. Mattel’s measurement of its unrecognized tax benefits is based on management’s assessment of all relevant information, including prior audit experience, the status of audits, conclusions of tax audits, lapsing of applicable statutes of limitations, identification of new issues, and any administrative guidance or developments.

Debt Policy

The proportion of unamortized debt issuance costs from the prior facility renewal related to creditors involved in both the prior facility and amended facility and borrowing costs incurred as a result of the amendment were deferred, and such costs will be amortized over the term of the amended facility.

Earnings Per Share Policy

Unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and are included in the computation of earnings per share pursuant to the two-class method. Certain of Mattel’s RSUs are considered participating securities because they contain nonforfeitable rights to dividend equivalents.

Under the two-class method, net income is reduced by the amount of dividends declared in the period for each class of common stock and participating securities. The remaining undistributed earnings are then allocated to common stock and participating securities as if all of the net income for the period had been distributed. Basic earnings per common share excludes dilution and is calculated by dividing net income allocable to common shares by the weighted average number of common shares outstanding for the period. Diluted earnings per common share is calculated by dividing net income allocable to common shares by the weighted average number of common shares for the period, as adjusted for the potential dilutive effect of non-participating share-based awards.

Segment Information

Mattel does not include sales adjustments such as trade discounts and other allowances in the calculation of segment revenues (referred to as “gross sales”). Mattel records these adjustments in its financial accounting systems at the time of sale to each customer, but the adjustments are not allocated to individual products. For this reason, Mattel’s CODM uses gross sales by segment as one of the metrics to measure segment performance. Such sales adjustments are included in the determination of segment income from operations based on the adjustments recorded in the financial accounting systems. Segment income represents each segment’s operating income, while consolidated operating income represents income from operations before net interest, other non-operating income, and income taxes as reported in the consolidated statements of operations. The corporate and other expense category includes costs not allocated to individual segments, including charges related to incentive compensation, share-based payments, and corporate headquarters functions managed on a worldwide basis, and the impact of changes in foreign currency rates on intercompany transactions.