Accounting Policies	12 Months Ended
Accounting Policies	Dec. 31, 2019
Accounting Policies [Abstract]
Accounting Policies	Accounting Policies Basis of Presentation The consolidated financial statements present the accounts of Kimberly-Clark Corporation and all subsidiaries in which it has a controlling financial interest as if they were a single economic entity in conformity with accounting principles generally accepted in the United States of America ("GAAP"). All intercompany transactions and accounts are eliminated in consolidation. The terms "Corporation," "Kimberly-Clark," "we," "our," and "us" refer to Kimberly-Clark Corporation and all subsidiaries in which it has a controlling financial interest. Dollar amounts are reported in millions, except per share dollar amounts, unless otherwise noted. Use of Estimates The preparation of financial statements requires management 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 net sales and expenses during the reporting periods. Actual results could differ from these estimates, and changes in these estimates are recorded when known. Estimates are used in accounting for, among other things, sales incentives and trade promotion allowances, employee postretirement benefits, and deferred income taxes and potential assessments. Cash Equivalents Cash equivalents are short-term investments with an original maturity date of three months or less. Inventories and Distribution Costs Most U.S. inventories are valued at the lower of cost, using the Last-In, First-Out ("LIFO") method, or market. The balance of the U.S. inventories and inventories of consolidated operations outside the U.S. are valued at the lower of cost or net realizable value using either the First-In, First-Out ("FIFO") or weighted-average cost methods. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. Distribution costs are classified as cost of products sold. Property and Depreciation Property, plant and equipment are stated at cost and are depreciated on the straight-line method. Buildings are depreciated over their estimated useful lives, primarily 40 years. Machinery and equipment are depreciated over their estimated useful lives, primarily ranging from 16 to 20 years. Purchases of computer software, including external costs and certain internal costs (including payroll and payroll-related costs of employees) directly associated with developing significant computer software applications for internal use, are capitalized. Computer software costs are amortized on the straight-line method over the estimated useful life of the software, which generally does not exceed 5 years. Estimated useful lives are periodically reviewed and, when warranted, changes are made to them. Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. An impairment loss would be indicated when estimated undiscounted future cash flows from the use and eventual disposition of an asset group, which are identifiable and largely independent of the cash flows of other asset groups, are less than the carrying amount of the asset group. Measurement of an impairment loss would be based on the excess of the carrying amount of the asset group over its fair value. Fair value is measured using discounted cash flows or independent appraisals, as appropriate. 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 gain or loss on the transaction is included in income. Goodwill and Other Intangible Assets Goodwill represents costs in excess of fair values assigned to the underlying net assets of acquired businesses. Goodwill is not amortized, but rather is assessed for impairment annually and whenever events and circumstances indicate that impairment may have occurred. Impairment testing compares the reporting unit carrying amount, including goodwill, with its fair value. Fair value is estimated based on discounted cash flows. If the reporting unit carrying amount, including goodwill, exceeds its fair value, a goodwill impairment charge for the excess amount above fair value would be recorded. For 2019, we completed the required annual testing of goodwill for impairment for all of our reporting units using the first day of the third quarter as the measurement date and determined through quantitative impairment testing that goodwill is not impaired. Intangible assets with finite lives are amortized over their estimated useful lives and are reviewed for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. An impairment loss would be indicated when estimated undiscounted future cash flows from the use of the asset are less than its carrying amount. An impairment loss would be measured as the difference between the fair value (based on discounted future cash flows) and the carrying amount of the asset. Estimated useful lives range from 2 to 20 years for trademarks and 5 to 15 years for patents, developed technologies and other intangible assets. Investments in Equity Companies Investments in companies which we do not control but over which we have the ability to exercise significant influence and that, in general, are at least 20 percent-owned by us, are stated at cost plus equity in undistributed net income. These investments are evaluated for impairment when warranted. An impairment loss would be recorded whenever a decline in value of an equity investment below its carrying amount is determined to be other than temporary. In judging "other than temporary," we would consider the length of time and extent to which the fair value of the equity company investment has been less than the carrying amount, the near-term and longer-term operating and financial prospects of the equity company, and our longer-term intent of retaining the investment in the equity company. Revenue Recognition Sales revenue is recognized at the time of product shipment or delivery, depending on when control passes, to unaffiliated customers, and when all of the following have occurred: a firm sales agreement is in place, pricing is fixed or determinable, and collection is reasonably assured. Sales are reported net of returns, consumer and trade promotions, rebates and freight allowed. Taxes imposed by governmental authorities on our revenue-producing activities with customers, such as sales taxes and value-added taxes, are excluded from net sales. Sales Incentives and Trade Promotion Allowances The cost of promotion activities provided to customers is classified as a reduction in sales revenue. In addition, the estimated redemption value of consumer coupons and related expense are recorded when the related revenue from customers is realized. Rebate and promotion accruals are based on estimates of the quantity of customer sales. Promotion accruals also consider estimates of the number of consumer coupons that will be redeemed and timing and costs of activities within the promotional programs. Advertising Expense Advertising costs are expensed in the year the related advertisement or campaign is first presented through traditional or digital media. For interim reporting purposes, advertising expenses are charged to operations as a percentage of sales based on estimated sales and related advertising expense for the full year. Research Expense Research and development costs are charged to expense as incurred. Foreign Currency Translation The income statements of foreign operations, other than those in highly inflationary economies, are translated into U.S. dollars at rates of exchange in effect each month. The balance sheets of these operations are translated at period-end exchange rates, and the differences from historical exchange rates are reflected in stockholders' equity as unrealized translation adjustments. As of July 1, 2018, we elected to adopt highly inflationary accounting for our subsidiaries in Argentina (“K-C Argentina”). The effect of changes in exchange rates on peso-denominated monetary assets and liabilities has been reflected in earnings in Other (income) and expense, net and was not material. As of December 31, 2019, K-C Argentina had a small net peso monetary position. Net sales of K-C Argentina were approximately 1 percent of our consolidated net sales in 2019 and 2018. Derivative Instruments and Hedging Our policies allow the use of derivatives for risk management purposes and prohibit their use for speculation. Our policies also prohibit the use of any leveraged derivative instrument. Consistent with our policies, foreign currency derivative instruments, interest rate swaps and locks, and the majority of commodity hedging contracts are entered into with major financial institutions. At inception, we formally designate certain derivatives as cash flow, fair value or net investment hedges and establish how the effectiveness of these hedges will be assessed and measured. This process links the derivatives to the transactions or financial balances they are hedging. Changes in the fair value of derivatives not designated as hedging instruments are recorded in earnings as they occur. All derivative instruments are recorded as assets or liabilities on the balance sheet at fair value. Changes in the fair value of derivatives are either recorded in the income statement or other comprehensive income, as appropriate. The gain or loss on derivatives designated as fair value hedges and the offsetting loss or gain on the hedged item attributable to the hedged risk are included in income in the period that changes in fair value occur. The gain or loss on derivatives designated as cash flow hedges is included in other comprehensive income in the period that changes in fair value occur, and is reclassified to income in the same period that the hedged item affects income. The gain or loss on derivatives designated as hedges of investments in foreign subsidiaries is recognized in other comprehensive income to offset the change in value of the net investments being hedged. Certain foreign-currency derivative instruments not designated as hedging instruments have been entered into to manage certain non-functional currency denominated monetary assets and liabilities. The gain or loss on these derivatives is included in income in the period that changes in their fair values occur. Cash flows from derivatives are classified within the consolidated statement of cash flows in the same category as the items being hedged. Cash flows from derivatives are classified within Operating Activities, except for derivatives designated as net investment hedges which are classified in Investing Activities. See Note 10 for disclosures about derivative instruments and hedging activities. Leases Lease assets and lease liabilities are recognized at the commencement of an arrangement where it is determined at inception that a lease exists. Lease assets represent the right to use an underlying asset for the lease term, and lease liabilities represent the obligation to make lease payments arising from the lease. These assets and liabilities are initially recognized based on the present value of lease payments over the lease term calculated using our incremental borrowing rate generally applicable to the location of the lease asset, unless the implicit rate is readily determinable. Lease assets also include any upfront lease payments made and exclude lease incentives. Lease terms include options to extend or terminate the lease when it is reasonably certain that those options will be exercised. Variable lease payments are generally expensed as incurred and include certain index-based changes in rent, certain nonlease components, such as maintenance and other services provided by the lessor, and other charges included in the lease. Leases with an initial term of 12 months or less are not recorded on the balance sheet, and the expense for these short-term leases and for operating leases is recognized on a straight-line basis over the lease term. Certain lease agreements with lease and nonlease components are combined as a single lease component. The depreciable life of lease assets and leasehold improvements is limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Accounting Standards - Adopted During 2019 The Financial Accounting Standards Board (the "FASB") issued Accounting Standards Update ("ASU") No. 2016-02, Leases (Topic 842), amended by ASU 2018-11, Leases (Topic 842): Targeted Improvements. The new guidance requires a lessee to recognize assets and liabilities for all leases with lease terms of more than 12 months and provide additional disclosures. The ASU requires adoption using a modified retrospective transition approach with either 1) periods prior to the adoption date being recast or 2) a cumulative-effect adjustment recognized to the opening balance of retained earnings on the adoption date with prior periods not recast. We adopted this standard on January 1, 2019 using the cumulative-effect adjustment approach. We elected the package of practical expedients in transition for leases that commenced prior to January 1, 2019 whereby these contracts were not reassessed or reclassified from their previous assessment as of December 31, 2018. We also elected certain other practical expedients in transition including not reassessing existing land easements as lease contracts. For all new and modified leases after adoption of the ASU, we have taken the component election allowing us to generally account for lease components together with nonlease components in the calculation of the lease asset and corresponding liability. We implemented processes and a lease accounting system to ensure adequate internal controls were in place to assess our contracts and enable proper accounting and reporting of financial information upon adoption. No cumulative-effect adjustment was recognized as the amount was not material, and the impact on our results of operations and cash flows was also not material. See Note 8 for the financial position impact and additional disclosures. The FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The new standard makes more financial and non-financial hedging strategies eligible for hedge accounting. It also amends presentation and disclosure requirements and changes how companies assess hedge effectiveness. This ASU requires adoption using a modified retrospective transition approach with a cumulative-effect adjustment recognized to the opening balance of retained earnings on the adoption date with prior periods not recast. We adopted this standard on January 1, 2019 with no cumulative-effect adjustment as the amount was not material. The effects of this standard on our financial position, results of operations and cash flows were not material. The FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820). The new guidance modifies disclosure requirements related to fair value measurement. The amendments in this ASU are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Implementation on a prospective or retrospective basis varies by specific disclosure requirement. We early adopted this standard as of July 1, 2019 on a prospective basis. The impact on our disclosures was not material. Accounting Standards Issued - Not Adopted as of December 31, 2019 The FASB issued ASU No. 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40). The new guidance reduces complexity for the accounting for costs of implementing a cloud computing service arrangement and aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). We adopted this standard as of January 1, 2020 on a prospective basis. The effects of this standard on our financial position, results of operations and cash flows were not material. The FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The new guidance simplifies the accounting for income taxes by eliminating certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period, hybrid taxes and the recognition of deferred tax liabilities for outside basis differences. It also clarifies and simplifies other aspects of the accounting for income taxes. For public companies, the amendments in this ASU are effective for fiscal years beginning after December 15, 2020 and interim periods within those fiscal years. Early adoption is permitted in interim or annual periods with any adjustments reflected as of the beginning of the annual period that includes that interim period. Additionally, entities that elect early adoption must adopt all the amendments in the same period. Amendments are to be applied prospectively, except for certain amendments that are to be applied either retrospectively or with a modified retrospective approach through a cumulative effect adjustment recorded to retained earnings. The effects of this standard on our financial position, results of operations or cash flows are not expected to be material.