Basis of Presentation and Summary of Significant Accounting Policies	12 Months Ended
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying consolidated balance sheets of Axalta Coating Systems Ltd. ("Axalta," the "Company," "we," "our" and "us"), at December 31, 2021 and 2020 and the related consolidated statements of operations, consolidated statements of comprehensive income, consolidated statements of cash flows and consolidated statements of changes in shareholders' equity for the years ended December 31, 2021, 2020 and 2019 included herein have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") and are audited. In the opinion of management, these statements include all adjustments, consisting only of normal, recurring adjustments, necessary for a fair statement of the financial position of Axalta. Summary of Significant Accounting Policies Principles of Consolidation The consolidated financial statements include the accounts of Axalta and its subsidiaries, and entities in which a controlling interest is maintained. For those consolidated subsidiaries in which the Company's ownership is less than 100%, the outside shareholders' interests are shown as noncontrolling interests. Investments in companies in which Axalta does not maintain control, but has the ability to exercise significant influence over operating and financial policies of the investee are accounted for using the equity method of accounting. As a result, Axalta's share of the earnings or losses of such equity affiliates is included in the accompanying consolidated statements of operations and our share of these companies' stockholders' equity is included in the accompanying consolidated balance sheets. Certain of our joint ventures are accounted for on a one-month lag basis, the effect of which is not material. We eliminated all intercompany accounts and transactions in the preparation of the accompanying consolidated financial statements. Use of Estimates The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of sales and expenses during the period. The estimates and assumptions include, but are not limited to, receivable and inventory valuations, fixed asset valuations, valuations of goodwill and identifiable intangible assets, including analysis of impairment, valuations of long-term employee benefit obligations, income taxes, environmental matters, contingencies, litigation, stock-based compensation, restructuring and allocations of costs. Our estimates are based on historical experience, facts and circumstances available at the time and various other assumptions that are believed to be reasonable. Actual results could differ materially from those estimates. Accounting for Business Combinations We account for business combinations under the acquisition method of accounting. This method requires the recording of acquired assets, including separately identifiable intangible assets and assumed liabilities at their acquisition date fair values. The method records any excess purchase price over the fair value of acquired net assets as goodwill. Included in the determination of the purchase price is the fair value of contingent consideration, if applicable, based on the terms and applicable targets described within the acquisition agreements (i.e., projected revenues or EBITDA). Subsequent to the acquisition date, the fair value of the contingent liability, if determined to be payable in cash, is revalued at each balance sheet date with adjustments recorded within earnings. The determination of the fair value of assets acquired, liabilities assumed and noncontrolling interests involves assessments of factors such as the expected future cash flows associated with individual assets and liabilities and appropriate discount rates at the closing date of the acquisition. When necessary, we consult with external advisors to help determine fair value. For non-observable market values determined using Level 3 assumptions, we determine fair value using acceptable valuation principles, including most commonly the excess earnings method for customer relationships, relief from royalty method for technology and trademarks, cost method for inventory and a combination of cost and market methods for property, plant and equipment, as applicable. We include the results of operations from the acquisition date in the financial statements for all businesses acquired. Revenue Recognition See Note 2 for disclosure of our revenue recognition accounting policy. Cash, Cash Equivalents and Restricted Cash Cash equivalents represent highly liquid investments considered readily convertible to known amounts of cash within three months or less from time of purchase. They are carried at cost plus accrued interest, which approximates fair value because of the short-term maturity of these instruments. Cash balances may exceed government insured limits in certain jurisdictions. Restricted cash on our consolidated balance sheets represents cash held in escrow for pending contingent liabilities related to an acquisition made during the year ended December 31, 2021 and cash used to secure certain customer guarantees. Fair Value Measurements GAAP defines a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. The following valuation techniques are used to measure fair value for assets and liabilities: Level 1—Quoted market prices in active markets for identical assets or liabilities; Level 2—Significant other observable inputs (i.e., quoted prices for similar items in active markets, quoted prices for identical or similar items in markets that are not active, inputs other than quoted prices that are observable such as interest rate and yield curves, and market-corroborated inputs); and Level 3—Unobservable inputs for the asset or liability, which are valued based on management's estimates of assumptions that market participants would use in pricing the asset or liability. Derivatives and Hedging The Company from time to time utilizes derivatives to manage exposures to currency exchange rates and interest rate risk. The fair values of all derivatives are recognized as assets or liabilities at the balance sheet date. Changes in the fair value of these instruments are reported in income or accumulated other comprehensive loss ("AOCI"), depending on the use of the derivative and whether it qualifies for hedge accounting treatment and is designated as such. Gains and losses on derivatives that qualify and are designated as cash flow or net investment hedges are recorded in AOCI, to the extent the hedges are effective, until the underlying transactions are recognized in income. Gains and losses on derivatives qualifying and designated as fair value hedging instruments, as well as the offsetting losses and gains on the hedged items, are reported in income in the same accounting period. Derivatives not designated as hedging instruments are marked-to-market at the end of each accounting period with the results included in income. Cash flows from derivatives are presented in the consolidated statements of cash flows in a manner consistent with the underlying transactions. Receivables and Allowance for Doubtful Accounts Receivables are carried at amounts that approximate fair value. Receivables are recognized net of an allowance for doubtful accounts receivable. The allowance for doubtful accounts reflects the current estimate of credit losses expected to be incurred over the life of the financial asset, based on historical experience, current conditions and reasonable forecasts of future economic conditions. Accounts receivable are written down or off when a portion or all of such account receivable is determined to be uncollectible. Inventories Inventories are valued at the lower of cost or net realizable value with cost being determined on the weighted average cost method. Elements of cost in inventories include: •raw materials, •direct labor, and •manufacturing and indirect overhead. Stores and supplies are valued at the lower of cost or net realizable value; cost is generally determined by the weighted average cost method. Inventories deemed to have costs greater than their respective market values are reduced to net realizable value with a loss recorded in income in the period recognized. Property, Plant and Equipment Property, plant and equipment acquired in an acquisition are recorded at fair value as of the acquisition date and are depreciated over the estimated useful life using the straight-line method. Property, plant and equipment purchases are recorded at cost and are depreciated over the estimated useful life using the straight-line method starting on the date they are placed in service. See Note 15 for a range of estimated useful lives used for each property, plant and equipment class. Software included in property, plant and equipment represents the costs of software developed or obtained for internal use. Software costs are amortized on a straight-line basis over their estimated useful lives. Upgrades and enhancements are capitalized if they result in added functionality, which enables the software to perform tasks it was previously incapable of performing. Software maintenance and training costs are expensed in the period in which they are incurred. Leases See Note 7 for disclosure of our accounting policy over leases. Goodwill and Other Identifiable Intangible Assets Goodwill represents the excess of the purchase price over the fair values of the underlying net assets acquired in a business combination. Goodwill and indefinite-lived intangible assets are tested for impairment on an annual basis as of October 1st; however, these tests are performed more frequently if events or changes in circumstances indicate that the asset may be impaired. The fair value methodology utilizes multiple valuation methodologies and assumptions, including prices of similar assets, where applicable, or discounted cash flow techniques. When testing goodwill and indefinite-lived intangible assets for impairment, we first have an option to assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (more than 50%) that an impairment exists. Such qualitative factors may include the following: macroeconomic conditions; industry and market considerations; cost factors; overall financial performance; and other relevant entity-specific events. If based on this qualitative assessment we determine that an impairment is more likely than not, or if we elect not to perform a qualitative assessment, we would be required to perform a quantitative impairment test. Under the quantitative impairment test, the evaluation of impairment involves comparing the current fair value of each reporting unit, with respect to goodwill, and indefinite-lived intangible asset to its carrying value. If the fair value of the reporting unit or indefinite-lived intangible asset is less than the carrying value, the difference is recorded as an impairment loss not to exceed the amount of recorded goodwill or carrying value of the respective indefinite-lived intangible asset. In 2021, we performed a qualitative evaluation for impairment over our reporting units and indefinite-lived intangible assets and concluded that it was not more likely than not that the fair values are less than the respective carrying amounts. Definite-lived intangible assets, such as technology, trademarks, customer relationships, favorable contractual agreements and non-compete agreements are amortized over their estimated useful lives, generally for periods ranging from 3 to 25 years. We evaluate these assets for impairment whenever events or changes in circumstances indicate that the carrying amount of these assets might not be recoverable. The reasonableness of the useful lives of definite and indefinite-lived assets are regularly evaluated. Impairment of Long-Lived Assets The carrying value of long-lived assets to be held and used is evaluated when events or changes in circumstances indicate the carrying value may not be recoverable. The carrying value of a long-lived asset is considered impaired when the total projected undiscounted cash flows from the asset is less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair value of the long-lived asset. The fair value methodology used is an estimate of fair market value and is based on prices of similar assets or other valuation methodologies including present value techniques. Long-lived assets to be disposed of other than by sale are classified as held for use until their disposal. Long-lived assets to be disposed of by sale are classified as held for sale after all applicable attributes in the guidance are met and are reported at the lower of carrying amount or fair market value less cost to sell. Depreciation is discontinued for long-lived assets classified as held for sale. Research and Development Research and development costs incurred in the normal course of business consist primarily of employee-related costs and are expensed as incurred. In-process research and development projects acquired in a business combination are recorded as intangible assets at their fair value as of the acquisition date, using Level 3 assumptions. Subsequent costs related to acquired in-process research and development projects are expensed as incurred. In-process research and development intangible assets are considered indefinite-lived until the abandonment or completion of the associated research and development efforts. These indefinite-lived intangible assets are tested for impairment consistent with the impairment testing performed on other indefinite-lived intangible assets discussed above. Upon completion of the research and development process, the carrying value of acquired in-process research and development projects is reclassified as a finite-lived asset and is amortized over its useful life. Once amortization commences, these assets are tested for impairment consistent with long-lived assets as discussed above. Environmental Liabilities and Expenditures Accruals for environmental matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated. Accrued environmental liabilities are not discounted. Claims for recovery from third parties, if any, are reflected separately as an asset. We record recoveries at the earlier of when the gain is probable and reasonably estimable or realized. Costs related to environmental remediation are charged to expense in the period incurred. Other environmental costs are also charged to expense in the period incurred, unless they increase the value of the property or reduce or prevent contamination from future operations, in which case, they are capitalized and depreciated. Contingencies and Litigation We accrue for liabilities related to contingencies including the operational matter discussed in Note 6 and litigation matters when available information indicates that the liability is probable, and the amount can be reasonably estimated. Legal costs such as outside counsel fees and expenses are charged to expense in the period incurred. Income Taxes Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax basis. Deferred tax assets are also recognized for tax losses, interest and tax credit carryforwards. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. Deferred tax assets and liabilities are measured using enacted tax rates applicable in the years in which they are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax law is recognized in income in the period that includes the enactment date. Where we do not intend to indefinitely reinvest earnings of our subsidiaries, we provide for income taxes and withholding taxes, where applicable, on unremitted earnings. We do not provide for income taxes on unremitted earnings of our subsidiaries that are intended to be indefinitely reinvested. We recognize the benefit of an income tax position only if it is "more likely than not" that the tax position will be sustained. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized. Additionally, we recognize interest and penalties accrued related to unrecognized tax benefits as a component of provision for income taxes. The current portion of unrecognized tax benefits is included in "Other accrued liabilities" and the long-term portion is included in "Other liabilities" in the accompanying consolidated balance sheets. Foreign Currency Translation Our reporting currency is the U.S. Dollar. In most cases, our non-U.S. based subsidiaries use their local currency as the functional currency for their respective business operations. Assets and liabilities of these operations are translated into U.S. Dollars at end-of-period exchange rates; income and expenses are translated using the average exchange rates for the reporting period. Resulting cumulative translation adjustments are recorded as a component of shareholders' equity in the accompanying consolidated balance sheets in AOCI. Gains and losses from transactions denominated in currencies other than functional currencies are included in the consolidated statements of operations in other (income) expense, net. Employee Benefits Defined benefit plans specify an amount of pension benefit that an employee will receive upon retirement, usually dependent on factors such as age, years of service and compensation. The obligation in respect of defined benefit plans is calculated separately for each plan by estimating the amount of the future benefits that employees earn in return for their service in the current and prior periods. These benefits are then discounted to determine the present value of the obligations and are then adjusted for the impact of any unamortized prior service costs. The discount rate used is based upon market indicators in the region (generally, the yield on bonds that are denominated in the currency in which the benefits will be paid and that have maturity dates approximating the terms of the obligations). The calculations are performed by qualified actuaries using the projected unit credit method. The obligation of defined benefit plans recorded on our consolidated balance sheets is net of the current fair value of assets within each respective plan. See Note 8 for further information. Stock-Based Compensation We provide directors and certain employees stock-based compensation comprised of stock options, restricted stock awards, restricted stock units, performance stock awards and performance share units. The instruments are measured at fair value on the grant date or date of modification, as applicable. We recognize compensation expense on a graded-vesting attribution basis over the requisite service period, inclusive of impacts of any current period modifications of previously granted awards. Compensation expense is recorded net of forfeitures, which we have elected to record in the period they occur. Earnings per Common Share Basic earnings per common share is computed by dividing net income attributable to Axalta's common shareholders by the weighted average number of shares outstanding during the period. Diluted earnings per common share is computed by dividing net income attributable to Axalta's common shareholders by the weighted average number of shares outstanding during the period increased by the number of additional shares that would have been outstanding related to potentially dilutive securities; anti-dilutive securities are excluded from the calculation. These potentially dilutive securities are calculated under the treasury stock method and all outstanding stock options, restricted stock awards, restricted stock units, performance stock awards and performance share units. Recently Adopted Accounting Guidance In March 2020, we adopted ASU 2020-04, "Reference Rate Reform," which provides optional expedients exercisable through December 31, 2022 to ease the potential burden in accounting for the effects of reference rate reform on financial reporting. In January 2021, the FASB issued ASU No. 2021-01, "Reference Rate Reform (Topic 848): Scope," which clarified the scope and application of the original guidance. As of December 31, 2021, the expedients provided in this standard do not impact the Company. We will continue to monitor for potential impacts on our financial statements. See Notes 18 and 19 for further information. In December 2020, we adopted ASU 2019-12, "Simplifying the Accounting for Income Taxes," which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and updating provisions related to accounting for franchise (or similar) tax partially based on income and interim recognition of enactment of tax law changes. The adoption of this standard did not have a material impact on our financial statements. Risks and Uncertainties In March 2020, the World Health Organization characterized the coronavirus ("COVID-19") as a pandemic, and the COVID-19 outbreak was declared a national emergency in the United States. The rapid spread of the pandemic and the continuously evolving responses to combat it have had a negative impact on the global economy. The Company's results of operations, financial condition and cash flows were significantly impacted during 2020 as a result of the pandemic and we continue to see impacts to our business given the continued significant presence, and actual or potential spread, of the virus globally, as well as preventative measures enacted in certain regions of the world. We are currently unable to fully determine the future impact of COVID-19 on our business, though we believe the pandemic will continue to have a negative effect on our business during 2022, and potentially longer. We are monitoring the progression of the pandemic and its ongoing and potential effect on our financial position, results of operations, and cash flows, which effects could be materially adverse in a particular quarterly reporting period as well as on an annual basis.

The accompanying consolidated balance sheets of Axalta Coating Systems Ltd. ("Axalta," the "Company," "we," "our" and "us"), at December 31, 2021 and 2020 and the related consolidated statements of operations, consolidated statements of comprehensive income, consolidated statements of cash flows and consolidated statements of changes in shareholders' equity for the years ended December 31, 2021, 2020 and 2019 included herein have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") and are audited. In the opinion of management, these statements include all adjustments, consisting only of normal, recurring adjustments, necessary for a fair statement of the financial position of Axalta.

The consolidated financial statements include the accounts of Axalta and its subsidiaries, and entities in which a controlling interest is maintained. For those consolidated subsidiaries in which the Company's ownership is less than 100%, the outside shareholders' interests are shown as noncontrolling interests. Investments in companies in which Axalta does not maintain control, but has the ability to exercise significant influence over operating and financial policies of the investee are accounted for using the equity method of accounting. As a result, Axalta's share of the earnings or losses of such equity affiliates is included in the accompanying consolidated statements of operations and our share of these companies' stockholders' equity is included in the accompanying consolidated balance sheets. Certain of our joint ventures are accounted for on a one-month lag basis, the effect of which is not material. We eliminated all intercompany accounts and transactions in the preparation of the accompanying consolidated financial statements.

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of sales and expenses during the period. The estimates and assumptions include, but are not limited to, receivable and inventory valuations, fixed asset valuations, valuations of goodwill and identifiable intangible assets, including analysis of impairment, valuations of long-term employee benefit obligations, income taxes, environmental matters, contingencies, litigation, stock-based compensation, restructuring and allocations of costs. Our estimates are based on historical experience, facts and circumstances available at the time and various other assumptions that are believed to be reasonable. Actual results could differ materially from those estimates.

We account for business combinations under the acquisition method of accounting. This method requires the recording of acquired assets, including separately identifiable intangible assets and assumed liabilities at their acquisition date fair values. The method records any excess purchase price over the fair value of acquired net assets as goodwill. Included in the determination of the purchase price is the fair value of contingent consideration, if applicable, based on the terms and applicable targets described within the acquisition agreements (i.e., projected revenues or EBITDA). Subsequent to the acquisition date, the fair value of the contingent liability, if determined to be payable in cash, is revalued at each balance sheet date with adjustments recorded within earnings.

The determination of the fair value of assets acquired, liabilities assumed and noncontrolling interests involves assessments of factors such as the expected future cash flows associated with individual assets and liabilities and appropriate discount rates at the closing date of the acquisition. When necessary, we consult with external advisors to help determine fair value. For non-observable market values determined using Level 3 assumptions, we determine fair value using acceptable valuation principles, including most commonly the excess earnings method for customer relationships, relief from royalty method for technology and trademarks, cost method for inventory and a combination of cost and market methods for property, plant and equipment, as applicable.

Cash equivalents represent highly liquid investments considered readily convertible to known amounts of cash within three months or less from time of purchase. They are carried at cost plus accrued interest, which approximates fair value because of the short-term maturity of these instruments. Cash balances may exceed government insured limits in certain jurisdictions.

Restricted cash on our consolidated balance sheets represents cash held in escrow for pending contingent liabilities related to an acquisition made during the year ended December 31, 2021 and cash used to secure certain customer guarantees.

GAAP defines a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). A financial instrument's level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

Level 2—Significant other observable inputs (i.e., quoted prices for similar items in active markets, quoted prices for identical or similar items in markets that are not active, inputs other than quoted prices that are observable such as interest rate and yield curves, and market-corroborated inputs); and

The Company from time to time utilizes derivatives to manage exposures to currency exchange rates and interest rate risk. The fair values of all derivatives are recognized as assets or liabilities at the balance sheet date. Changes in the fair value of these instruments are reported in income or accumulated other comprehensive loss ("AOCI"), depending on the use of the derivative and whether it qualifies for hedge accounting treatment and is designated as such.

Gains and losses on derivatives qualifying and designated as fair value hedging instruments, as well as the offsetting losses and gains on the hedged items, are reported in income in the same accounting period. Derivatives not designated as hedging instruments are marked-to-market at the end of each accounting period with the results included in income.

Receivables are carried at amounts that approximate fair value. Receivables are recognized net of an allowance for doubtful accounts receivable. The allowance for doubtful accounts reflects the current estimate of credit losses expected to be incurred over the life of the financial asset, based on historical experience, current conditions and reasonable forecasts of future economic conditions. Accounts receivable are written down or off when a portion or all of such account receivable is determined to be uncollectible.

Stores and supplies are valued at the lower of cost or net realizable value; cost is generally determined by the weighted average cost method. Inventories deemed to have costs greater than their respective market values are reduced to net realizable value with a loss recorded in income in the period recognized.

Property, plant and equipment acquired in an acquisition are recorded at fair value as of the acquisition date and are depreciated over the estimated useful life using the straight-line method. Property, plant and equipment purchases are recorded at cost and are depreciated over the estimated useful life using the straight-line method starting on the date they are placed in service. See Note 15 for a range of estimated useful lives used for each property, plant and equipment class.

Software included in property, plant and equipment represents the costs of software developed or obtained for internal use. Software costs are amortized on a straight-line basis over their estimated useful lives. Upgrades and enhancements are capitalized if they result in added functionality, which enables the software to perform tasks it was previously incapable of performing. Software maintenance and training costs are expensed in the period in which they are incurred.

Goodwill represents the excess of the purchase price over the fair values of the underlying net assets acquired in a business combination. Goodwill and indefinite-lived intangible assets are tested for impairment on an annual basis as of October 1st; however, these tests are performed more frequently if events or changes in circumstances indicate that the asset may be impaired. The fair value methodology utilizes multiple valuation methodologies and assumptions, including prices of similar assets, where applicable, or discounted cash flow techniques.

When testing goodwill and indefinite-lived intangible assets for impairment, we first have an option to assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (more than 50%) that an impairment exists. Such qualitative factors may include the following: macroeconomic conditions; industry and market considerations; cost factors; overall financial performance; and other relevant entity-specific events. If based on this qualitative assessment we determine that an impairment is more likely than not, or if we elect not to perform a qualitative assessment, we would be required to perform a quantitative impairment test.

Under the quantitative impairment test, the evaluation of impairment involves comparing the current fair value of each reporting unit, with respect to goodwill, and indefinite-lived intangible asset to its carrying value. If the fair value of the reporting unit or indefinite-lived intangible asset is less than the carrying value, the difference is recorded as an impairment loss not to exceed the amount of recorded goodwill or carrying value of the respective indefinite-lived intangible asset.

In 2021, we performed a qualitative evaluation for impairment over our reporting units and indefinite-lived intangible assets and concluded that it was not more likely than not that the fair values are less than the respective carrying amounts.

Definite-lived intangible assets, such as technology, trademarks, customer relationships, favorable contractual agreements and non-compete agreements are amortized over their estimated useful lives, generally for periods ranging from 3 to 25 years. We evaluate these assets for impairment whenever events or changes in circumstances indicate that the carrying amount of these assets might not be recoverable. The reasonableness of the useful lives of definite and indefinite-lived assets are regularly evaluated.

The carrying value of long-lived assets to be held and used is evaluated when events or changes in circumstances indicate the carrying value may not be recoverable. The carrying value of a long-lived asset is considered impaired when the total projected undiscounted cash flows from the asset is less than its carrying value. In that event, a loss is recognized based on the amount by which the carrying value exceeds the fair value of the long-lived asset. The fair value methodology used is an estimate of fair market value and is based on prices of similar assets or other valuation methodologies including present value techniques. Long-lived assets to be disposed of other than by sale are classified as held for use until their disposal. Long-lived assets to be disposed of by sale are classified as held for sale after all applicable attributes in the guidance are met and are reported at the lower of carrying amount or fair market value less cost to sell. Depreciation is discontinued for long-lived assets classified as held for sale.

Research and development costs incurred in the normal course of business consist primarily of employee-related costs and are expensed as incurred. In-process research and development projects acquired in a business combination are recorded as intangible assets at their fair value as of the acquisition date, using Level 3 assumptions. Subsequent costs related to acquired in-process research and development projects are expensed as incurred. In-process research and development intangible assets are considered indefinite-lived until the abandonment or completion of the associated research and development efforts. These indefinite-lived intangible assets are tested for impairment consistent with the impairment testing performed on other indefinite-lived intangible assets discussed above. Upon completion of the research and development process, the carrying value of acquired in-process research and development projects is reclassified as a finite-lived asset and is amortized over its useful life. Once amortization commences, these assets are tested for impairment consistent with long-lived assets as discussed above.

Accruals for environmental matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated. Accrued environmental liabilities are not discounted. Claims for recovery from third parties, if any, are reflected separately as an asset. We record recoveries at the earlier of when the gain is probable and reasonably estimable or realized.

Costs related to environmental remediation are charged to expense in the period incurred. Other environmental costs are also charged to expense in the period incurred, unless they increase the value of the property or reduce or prevent contamination from future operations, in which case, they are capitalized and depreciated.

We accrue for liabilities related to contingencies including the operational matter discussed in Note 6 and litigation matters when available information indicates that the liability is probable, and the amount can be reasonably estimated. Legal costs such as outside counsel fees and expenses are charged to expense in the period incurred.

Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax basis. Deferred tax assets are also recognized for tax losses, interest and tax credit carryforwards. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. Deferred tax assets and liabilities are measured using enacted tax rates applicable in the years in which they are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax law is recognized in income in the period that includes the enactment date.

Where we do not intend to indefinitely reinvest earnings of our subsidiaries, we provide for income taxes and withholding taxes, where applicable, on unremitted earnings. We do not provide for income taxes on unremitted earnings of our subsidiaries that are intended to be indefinitely reinvested.

We recognize the benefit of an income tax position only if it is "more likely than not" that the tax position will be sustained. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized. Additionally, we recognize interest and penalties accrued related to unrecognized tax benefits as a component of provision for income taxes. The current portion of unrecognized tax benefits is included in "Other accrued liabilities" and the long-term portion is included in "Other liabilities" in the accompanying consolidated balance sheets.

Our reporting currency is the U.S. Dollar. In most cases, our non-U.S. based subsidiaries use their local currency as the functional currency for their respective business operations. Assets and liabilities of these operations are translated into U.S. Dollars at end-of-period exchange rates; income and expenses are translated using the average exchange rates for the reporting period. Resulting cumulative translation adjustments are recorded as a component of shareholders' equity in the accompanying consolidated balance sheets in AOCI.

Defined benefit plans specify an amount of pension benefit that an employee will receive upon retirement, usually dependent on factors such as age, years of service and compensation. The obligation in respect of defined benefit plans is calculated separately for each plan by estimating the amount of the future benefits that employees earn in return for their service in the current and prior periods. These benefits are then discounted to determine the present value of the obligations and are then adjusted for the impact of any unamortized prior service costs. The discount rate used is based upon market indicators in the region (generally, the yield on bonds that are denominated in the currency in which the benefits will be paid and that have maturity dates approximating the terms of the obligations). The calculations are performed by qualified actuaries using the projected unit credit method. The obligation of defined benefit plans recorded on our consolidated balance sheets is net of the current fair value of assets within each respective plan. See Note 8 for further information.

We provide directors and certain employees stock-based compensation comprised of stock options, restricted stock awards, restricted stock units, performance stock awards and performance share units. The instruments are measured at fair value on the grant date or date of modification, as applicable. We recognize compensation expense on a graded-vesting attribution basis over the requisite service period, inclusive of impacts of any current period modifications of previously granted awards. Compensation expense is recorded net of forfeitures, which we have elected to record in the period they occur.

Basic earnings per common share is computed by dividing net income attributable to Axalta's common shareholders by the weighted average number of shares outstanding during the period. Diluted earnings per common share is computed by dividing net income attributable to Axalta's common shareholders by the weighted average number of shares outstanding during the period increased by the number of additional shares that would have been outstanding related to potentially dilutive securities; anti-dilutive securities are excluded from the calculation. These potentially dilutive securities are calculated under the treasury stock method and all outstanding stock options, restricted stock awards, restricted stock units, performance stock awards and performance share units.

In March 2020, we adopted ASU 2020-04, "Reference Rate Reform," which provides optional expedients exercisable through December 31, 2022 to ease the potential burden in accounting for the effects of reference rate reform on financial reporting. In January 2021, the FASB issued ASU No. 2021-01, "Reference Rate Reform (Topic 848): Scope," which clarified the scope and application of the original guidance. As of December 31, 2021, the expedients provided in this standard do not impact the Company. We will continue to monitor for potential impacts on our financial statements. See Notes 18 and 19 for further information.

In December 2020, we adopted ASU 2019-12, "Simplifying the Accounting for Income Taxes," which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and updating provisions related to accounting for franchise (or similar) tax partially based on income and interim recognition of enactment of tax law changes. The adoption of this standard did not have a material impact on our financial statements.

In March 2020, the World Health Organization characterized the coronavirus ("COVID-19") as a pandemic, and the COVID-19 outbreak was declared a national emergency in the United States. The rapid spread of the pandemic and the continuously evolving responses to combat it have had a negative impact on the global economy. The Company's results of operations, financial condition and cash flows were significantly impacted during 2020 as a result of the pandemic and we continue to see impacts to our business given the continued significant presence, and actual or potential spread, of the virus globally, as well as preventative measures enacted in certain regions of the world. We are currently unable to fully determine the future impact of COVID-19 on our business, though we believe the pandemic will continue to have a negative effect on our business during 2022, and potentially longer. We are monitoring the progression of the pandemic and its ongoing and potential effect on our financial position, results of operations, and cash flows, which effects could be materially adverse in a particular quarterly reporting period as well as on an annual basis.