The consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States. Preparation of the consolidated financial statements requires management to make estimates and assumptions that affect amounts reported in the consolidated financial statements and notes. Such estimates and assumptions are subject to inherent uncertainties which may result in actual amounts differing from these estimates.

The financial statements consolidate all applicable subsidiaries; intercompany transactions and balances are eliminated. In the second quarter of 2023, 3M re-consolidated the Aearo Technology and certain of its related entities (collectively, the "Aearo Entities") as a result of the court dismissal of their voluntary bankruptcy proceedings. 3M had previously deconsolidated these entities in the third quarter of 2022. See additional information in Note 18.

Local currencies generally are considered the functional currencies outside the United States, with the exception of subsidiaries operating in highly inflationary economies, which are not material to 3M. Assets and liabilities for operations in local-currency environments are translated at month-end exchange rates of the period reported. Income and expense items are translated at average monthly currency exchange rates in effect during the period. Cumulative translation adjustments are recorded as a component of accumulated other comprehensive income (loss) in shareholders’ equity.

Certain amounts in the prior years’ consolidated financial statements have been reclassified to conform to the current year presentation. Effective in the first quarter of 2023, 3M made changes in the measure of segment operating performance and segment composition used by 3M’s chief operating decision maker—impacting 3M’s disclosed measure of segment profit/loss (business segment operating income (loss)). Also effective in the first quarter of 2023, 3M's Consumer business segment re-aligned from four divisions to three divisions, see additional information in Note 21. 3M's disclosed disaggregated revenue was also updated as a result of these changes, see additional information in Note 2. Information provided herein reflects the impact of these changes for all periods presented.

Investments: 3M invests in marketable and equity securities. Marketable securities include available-for-sale debt securities and are recorded at fair value with unrealized gains and losses recorded as a component of accumulated other comprehensive income. The classification of marketable securities as current or non-current is based on the availability for use in current operations. All equity securities that do not result in consolidation and are not accounted for under the equity method are measured at fair value with changes therein reflected in net income. 3M utilizes the measurement alternative for equity investments that do not have readily determinable fair values and measures these investments at cost less impairment plus or minus observable price changes in orderly transactions. The balances associated with equity securities are disclosed in Note 7.

3M regularly reviews investment securities for impairment. For debt securities, an impairment relating to credit losses is recorded through an allowance for credit losses. A change in the allowance for credit losses is recorded into earnings in the period of the change. Any impairment that has not been recorded through an allowance for credit losses is recorded through accumulated other comprehensive income as a component of shareholders’ equity. Amounts are reclassified out of accumulated other comprehensive income and into earnings upon sale or a change in the portions of impairment related to credit losses and not related to credit losses.

Property, Plant and Equipment (PPE) and Definite-Lived Intangible Assets: Property, plant and equipment, including capitalized interest and internal direct engineering costs, are recorded at cost. The Company capitalizes direct costs of services used in the development of, and external software acquired for use as, internal-use software. These software amounts are reported as a component of machinery and equipment within PPE. Depreciation of PPE generally is computed using the straight-line method. Refer to Note 7 for depreciable life and additional details on PPE. Internal-use software elements of PPE are depreciated over a period of three to seven years. 3M records capital-related government grants earned as reductions to the cost of PPE and associated unpaid liabilities and grant proceeds receivable are considered non-cash changes in such balances for purposes of preparation of statement of cash flows.

Definite lived intangible asset types include customer related, patents, other technology-based, tradenames and other intangible assets acquired from an independent party. These assets are amortized on a on a systematic and rational basis (generally straight-line) that is representative of the asset's use. Refer to Note 4 for amortizable life and additional details on intangible assets. Costs related to internally developed intangible assets, such as patents, are expensed as incurred, within “Research, development and related expenses”.

Fully depreciated PPE other than capitalized internally developed software are retained in PPE and accumulated depreciation accounts until disposal. Upon disposal, assets and related accumulated depreciation are removed from the accounts and the net amount, less proceeds from disposal, is charged or credited to operations. Definite-lived intangible assets are removed from their respective gross asset and accumulated amortization accounts when they are no longer in use.

PPE and definite-lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset (asset group) may not be recoverable. The amount of the impairment loss recorded is calculated by the excess of the asset’s (asset group's) carrying value over its fair value. Fair value is generally determined using a discounted cash flow analysis.

Conditional Asset Retirement Obligations: A liability is initially recorded at fair value for an asset retirement obligation associated with the retirement of tangible long-lived assets in the period in which it is incurred if a reasonable estimate of fair value can be made. Over time the liabilities are accreted for the change in their present value and the initial capitalized costs are depreciated over the remaining useful lives of the related assets. The asset retirement obligation liability was $190 million and $177 million at December 31, 2023 and 2022, respectively.

Goodwill and Indefinite-Lived Intangible Assets: Goodwill and indefinite-lived intangible assets (namely certain tradenames), are not amortized and are assessed for impairment annually (fourth quarter and third quarter, respectively) and whenever an event occurs or circumstances change that would indicate the carrying amount may be impaired. Impairment testing for goodwill is performed at a reporting unit level, which at 3M, corresponds to a division. An impairment loss is recognized when the carrying value of the reporting unit’s net assets exceeds its estimated fair value. The estimated fair value of a reporting unit is determined based on a market approach using comparable company information such as EBITDA (earnings before interest, taxes, depreciation and amortization) multiples or, in some cases, based on a discounted cash flow analysis. An impairment loss is recognized for an indefinite-lived intangible asset when its fair value (generally determined on a discounted cash flow basis) is less than its carrying value.

Restructuring Actions: Restructuring actions generally include significant actions involving employee-related severance charges, contract termination costs, and impairment or accelerated depreciation/amortization of assets associated with such actions. Employee-related severance charges are largely based upon distributed employment policies and substantive severance plans. These charges are reflected in the quarter when the actions are probable and the amounts are estimable, which typically is when management approves the associated actions. Severance amounts for which affected employees in certain circumstances are required to render service in order to receive benefits at their termination dates were measured at the date such benefits were communicated to the applicable employees and recognized as expense over the employees’ remaining service periods. Contract termination and other charges primarily reflect costs to terminate a contract before the end of its term (measured at fair value at the time the Company provided notice to the counterparty) or costs that will continue to be incurred under the contract for its remaining term without economic benefit to the Company.

Revenue (Sales) Recognition: The Company sells products to a diversified base of customers around the world and has no material concentration of credit risk or significant payment terms extended to customers. The vast majority of 3M’s customer arrangements contain a single performance obligation to transfer manufactured goods. However, to a limited extent 3M also enters into customer arrangements that involve intellectual property out-licensing, multiple performance obligations (such as equipment, installation and service), software with coterminous post-contract support, services and non-standard terms and conditions.

Revenue is recognized when control of goods has transferred to customers. For the majority of the Company’s customer arrangements, control transfers to customers at a point-in-time when goods/services have been delivered as that is generally when legal title, physical possession and risks and rewards of goods/services transfer to the customer. In limited arrangements, control transfers over time as the customer simultaneously receives and consumes the benefits as 3M completes the performance obligation(s).

Revenue is recognized at the transaction price which the Company expects to be entitled. When determining the transaction price, 3M estimates variable consideration applying the portfolio approach practical expedient. The main sources of variable consideration for 3M are customer rebates, trade promotion funds, and cash discounts. These sales incentives are recorded as a reduction to revenue at the time of the initial sale using the most-likely amount estimation method. The most-likely amount method is based on the single most likely outcome from a range of possible consideration outcomes (derived from sales terms, historical experience, trend analysis, and projected market conditions in the various markets served). The most common incentive relates to amounts paid or credited to customers for achieving defined volume levels or growth objectives. There are no material instances where variable consideration is constrained and not recorded at the initial time of sale. Free goods are accounted for as an expense and recorded in cost of sales. Product returns are recorded as a reduction to revenue based on anticipated sales returns that occur in the normal course of business. 3M primarily has assurance-type warranties that do not result in separate performance obligations. Sales, use, value-added, and other excise taxes are not recognized in revenue. The Company has elected to present revenue net of sales taxes and other similar taxes.

For contracts with multiple performance obligations, the Company allocates the contract’s transaction price to each performance obligation using 3M’s best estimate of the standalone selling price of each distinct good or service in the contract. The Company utilizes the allowable exemption to not disclose the unfulfilled performance obligation balance for contracts with an original length of one year or less as the Company does not have material unfulfilled performance obligation balances for contracts with an original length greater than one year in any years presented. Further, the Company did not recognize any material revenue in the current reporting period for performance obligations that were fully satisfied in previous periods.

The Company applies the practical expedient relative to costs of obtaining a contract by expensing sales commissions when incurred because the amortization period would have been one year or less as the Company does not have material costs related to obtaining a contract with amortization periods greater than one year for any year presented.

The Company recognizes revenue from the rental of durable medical devices based on the length of time a device is used by the patient/organization, (i) at the contracted rental rate for contracted customers and (ii) generally, retail price for non-contracted customers. The leases are short-term in nature, generally providing for daily or monthly pricing, and are all classified as operating leases.

Accounts Receivable and Allowances: Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The Company maintains allowances for bad debts, cash discounts, and various other items for potential credit losses. The Company determines the allowances based on historical write-off experience, current expectations of future credit losses informed by industry and regional economic data, and historical cash discounts. The Company reviews the allowances monthly. The allowances for bad debts as well as the provision for credit losses, write-off activity and recoveries for the periods presented are not material. The Company does not have any significant off-balance-sheet credit exposure related to its customers. The Company has long-term customer receivables that do not have significant credit risk, and the origination dates of which are typically not older than five years. These long-term receivables are subject to an allowance methodology similar to other receivables.

Research, Development and Related Expenses: These costs are charged to operations in the period incurred and are shown on a separate line of the Consolidated Statement of Income. Research, development and related expenses totaled $1.8 billion, $1.9 billion and $2.0 billion in 2023, 2022 and 2021, respectively. Research and development expenses, covering basic scientific research and the application of scientific advances in the development of new and improved products and their uses, totaled $1.0 billion, $1.1 billion and $1.2 billion in 2023, 2022 and 2021, respectively. Related expenses primarily include technical support; internally developed patent costs, which include costs and fees incurred to prepare, file, secure and maintain patents; amortization of externally acquired patents and externally acquired in-process research and development; and gains/losses associated with certain corporate approved investments in R&D-related ventures.

Environmental: Reserves for liabilities related to anticipated environmental related remediation costs are recorded when they are probable and reasonably estimable, generally no later than the completion of feasibility studies, the Company’s commitment to a plan of action, or approval by regulatory agencies. Environmental costs for capital projects that contribute to current or future operations generally are capitalized and depreciated over their estimated useful lives.

Income taxes: The provision for income taxes is determined using the asset and liability approach. Under this approach, deferred income taxes represent the expected future tax consequences of temporary differences between the carrying amounts and tax basis of assets and liabilities. The Company records a valuation allowance to reduce its deferred tax assets when uncertainty regarding their realizability exists. The Company recognizes and measures its uncertain tax positions based on the rules under ASC 740, Income Taxes.

Stock-based compensation: The Company recognizes compensation expense for its stock-based compensation programs, which include stock options, restricted stock, restricted stock units (RSUs), performance shares, and the General Employees’ Stock Purchase Plan (GESPP). Under applicable accounting standards, the fair value of share-based compensation is determined at the grant date and the recognition of the related expense is recorded over the period in which the share-based compensation vests.

Derivatives and Hedging Activities: All derivative instruments within the scope of ASC 815, Derivatives and Hedging, are recorded on the balance sheet at fair value. All hedging instruments that qualify for hedge accounting are designated and effective as hedges, in accordance with U.S. generally accepted accounting principles. Instruments that do not qualify for hedge accounting are marked to market with changes recognized in current earnings. Cash flows from derivative instruments are classified in the statement of cash flows in the same category as the cash flows from the items subject to designated hedge or undesignated (economic) hedge relationships. The Company does not hold or issue derivative financial instruments for trading purposes and is not a party to leveraged derivatives. See Note 16 for more information on the Company's derivative instruments and hedging programs.

Fair Value Measurements: 3M follows ASC 820, Fair Value Measurements and Disclosures, with respect to assets and liabilities that are measured at fair value on a recurring basis and nonrecurring basis. Fair value is defined as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. The standard establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs market participants would use in valuing the asset or liability developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the factors market participants would use in valuing the asset or liability developed based upon the best information available in the circumstances. The hierarchy is broken down into three levels. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

Leases: 3M determines if an arrangement is a lease upon inception by establishing if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. 3M determines certain service agreements that contain the right to use an underlying asset are not leases because 3M does not control how and for what purpose the identified asset is used.

Operating lease right-of-use assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. The discount rate used is 3M’s incremental borrowing rate or, if available, the rate implicit in the lease. 3M determines the incremental borrowing rate for leases using a portfolio approach based primarily on the lease term and the economic environment of the applicable country or region.

As a lessee, the Company leases distribution centers, office space, land, and equipment. Certain 3M lease agreements include rental payments adjusted annually based on changes in an inflation index. 3M’s leases do not contain material residual value guarantees or material restrictive covenants. Lease expense is recognized on a straight-line basis over the lease term.

Certain leases include one or more options to renew, with terms that can extend the lease term up to five years. 3M includes options to renew the lease as part of the right of use lease asset and liability when it is reasonably certain the Company will exercise the option. In addition, certain leases contain fair value purchase and termination options with an associated penalty. In general, 3M is not reasonably certain to exercise such options.

For the measurement and classification of its lease agreements, 3M groups lease and non-lease components into a single lease component for all underlying asset classes. Variable lease payments primarily include payments for non-lease components, such as maintenance costs, payments for leased assets used beyond their noncancellable lease term as adjusted for contractual options to terminate or renew, additional payments related to a subsequent adjustment in an inflation index, and payments for non-components such as sales tax. Certain 3M leases contain immaterial variable lease payments based on number of units produced.


Standards Issued and Not Yet Adopted
Standard	Relevant Description	Effective Date for 3M	Impact and Other Matters
ASU No. 2022-04, Liabilities - Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Obligations	Issued in September 2022. Requires a buyer in a supplier finance program to disclose the key terms of the program, amount of outstanding obligations, and a rollforward of obligations confirmed and subsequently paid.	January 1, 2023, except rollforward disclosure which is not effective until the year-end December 31, 2024	As this ASU relates to disclosures only, there will be no impact to 3M’s consolidated results of operations and financial condition.
ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures	Issued in November 2023. Requires incremental disclosures to provide more disaggregated expense information about a Company's reportable segments.	Year-end December 31, 2024	As this ASU relates to disclosures only, there will be no impact to 3M’s consolidated results of operations and financial condition.
ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures	Issued in December 2023. Requires disaggregated information about a Company's effective tax rate reconciliation as well as information on income taxes paid.	Year-end December 31, 2025	As this ASU relates to disclosures only, there will be no impact to 3M’s consolidated results of operations and financial condition.