Basis of Presentation and Significant Accounting Policies	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies The accompanying unaudited condensed consolidated financial statements of Newell Brands Inc. (collectively with its subsidiaries, the “Company”) have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission (the “SEC”) and do not include all of the information and footnotes required by U.S. generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. In the opinion of management, the unaudited condensed consolidated financial statements include all adjustments (including normal recurring accruals) considered necessary for a fair statement of the financial position and the results of operations of the Company. These unaudited condensed consolidated financial statements should be read in conjunction with the financial statements, and the footnotes thereto, included in the Company’s most recent Annual Report on Form 10-K. The Condensed Consolidated Balance Sheet at December 31, 2020, has been derived from the audited financial statements as of that date, but it does not include all the information and footnotes required by U.S. GAAP for a complete financial statement. Certain reclassifications have been made in the Company’s financial statements of the prior year to conform to the current year presentation. Beginning January 1, 2021, the Company reported the operating results of its cookware product lines as part of the Food reporting unit within the Home Solutions segment, and no longer as part of the former Appliances and Cookware segment. This change was the result of an assessment by the chief operating decision maker (“CODM”) to better align the cookware product lines with other similar product lines in various food categories. In connection with this change, the Chief Executive Officer (“CEO”) for the Food business unit assumed full responsibility for the overall brand strategy, business modeling, marketing and innovation of these product lines. The Company determined this product line change did not result in a change to either of its Home Solutions or former Appliances and Cookware reportable segments. In connection with this change, the Appliances and Cookware segment was renamed as the Home Appliances segment. Prior period comparable results for both of these segments have been reclassified to conform to this product line change. The Company also revised the calculation of operating income (loss) by segment to include restructuring charges. Prior period comparable results have been reclassified to conform to the change in calculation (See Footnote 15). Use of Estimates and Risks and Uncertainty of Coronavirus (COVID-19) Since early 2020, the COVID-19 pandemic has resulted in various federal, state and local governments, as well as private entities, mandating restrictions on travel and public gatherings, closure of non-essential commerce, stay at home orders and quarantining of people to limit exposure to the virus. The Company's global operations, similar to those of many large, multi-national corporations, were adversely impacted by the COVID-19 pandemic. During the first quarter of 2020, the Company concluded that an impairment triggering event had occurred, as it had experienced significant COVID-19 related disruption for all of its reporting units, and performed an impairment test for its goodwill and indefinite-lived intangible assets and a recoverability test for its long-lived assets, which primarily include finite-lived intangible assets, property plant and equipment and right of use lease assets. As a result of the impairment and recoverability testing performed in connection with the triggering event, the Company determined that certain of its goodwill, indefinite-lived intangible assets, property plant and equipment and right of use operating leases assets were impaired. During the first quarter of 2020, the Company recorded an aggregate non-cash charge of approximately $1.5 billion in connection with these impairments. See Footnotes 5 and 6 for further information. The extent of the impact of the COVID-19 pandemic to the Company's future sales, operating results, cash flows, liquidity and financial condition will continue to be driven by numerous evolving factors that the Company cannot accurately predict and which will vary by jurisdiction and market, including the severity and duration of the pandemic, the emergence of new strains and variants of the coronavirus, the likelihood of a resurgence of positive cases, the development and availability of effective treatments and vaccines, especially in areas where conditions have recently worsened and lockdowns or travel bans have been reinstituted, the rate at which vaccines are administered to the general public, the impact of any vaccine mandates on our global businesses, the timing and amount of fiscal stimulus and relief programs packages that are available to the general public, the availability and prices of supply chain resources, including materials, products and transportation; and changes in consumer demand patterns for the Company's products as the impact of the global pandemic lessens. These primary drivers are beyond the Company's knowledge and control, and as a result, at this time it is difficult to predict the cumulative impact, both in terms of severity and duration, COVID-19 will have on its future sales, operating results, cash flows and financial condition. Management’s application of U.S. GAAP in preparing the Company's consolidated financial statements requires the pervasive use of estimates and assumptions. As discussed above, the world continues to be impacted by the COVID-19 pandemic which has required greater use of estimates and assumptions in the preparation of the consolidated financial statements, more specifically, those estimates and assumptions utilized in the Company’s forecasted cash flows that form the basis in developing the fair values utilized in its impairment assessments as well as its annual effective tax rate. These estimates also include assumptions as to the duration and severity of the pandemic, timing and amount of demand shifts amongst sales channels, workforce availability, supply chain continuity, and timing as to a return to normalcy. Although management has made its best estimates based upon current information, actual results could materially differ from those estimates and may require future changes to such estimates and assumptions. If so, the Company may be subject to future incremental impairment charges as well as changes to recorded reserves and valuations. Seasonal Variations Sales of the Company’s products tend to be seasonal, with sales, operating income and operating cash flow in the first quarter generally lower than any other quarter during the year, driven principally by reduced volume and the mix of products sold in the first quarter. The seasonality of the Company’s sales volume combined with the accounting for fixed costs, such as depreciation, amortization, rent, personnel costs and interest expense, impacts the Company’s results on a quarterly basis. In addition, the Company typically tends to generate the majority of its operating cash flow in the third and fourth quarters of the year due to seasonal variations in operating results, the timing of annual performance-based compensation payments, customer program payments, working capital requirements and credit terms provided to customers. Accordingly, the Company’s results of operations for the three and nine months ended September 30, 2021 may not necessarily be indicative of the results that may be expected for the year ending December 31, 2021. The Company's sales and operating results were disrupted by the COVID-19 pandemic, negatively impacting the Company's performance during the first half of 2020, with improved performance thereafter. While the Company believes the seasonality of its businesses will revert back to historical patterns as the impact of the global pandemic lessens, uncertainty still remains over the volatility of the direction of future consumer demand patterns. Recent Accounting Pronouncements Changes to U.S. GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates (“ASUs”) to the FASB’s Accounting Standards Codification. The Company considers the applicability and impact of all ASUs. In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting.” In January 2021, the FASB clarified the scope of this guidance with the issuance of ASU 2021-01, Reference Rate Reform: Scope. ASU 2020-04 provides optional expedients and exceptions to account for contracts, hedging relationships and other transactions that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate if certain criteria are met. ASU 2020-04 may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. The Company is currently evaluating the potential effects of the adoption of ASU 2020-04. Adoption of New Accounting Guidance The Company’s accounting policies are described in Note 1 of the Notes to Consolidated Financial Statements included in our 2020 Annual Report on Form 10-K. Such significant accounting policies are applicable for periods prior to the adoption of the following new accounting standards and updated accounting policies. In December 2019, the FASB issued ASU 2019-12, “Simplifying the Accounting for Income Taxes” (Topic 740). ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019-12 became effective for years, and interim periods within those years, beginning after December 15, 2020. The adoption of this guidance did not have a material impact on the Company’s consolidated financial statements. Sales of Accounts Receivables Factored receivables at September 30, 2021 associated with the Company's existing factoring agreement (the “Customer Receivables Purchase Agreement”) were approximately $450 million, an increase of approximately $100 million from December 31, 2020. Transactions under this agreement continue to be accounted for as sales of accounts receivable, and the receivables sold are removed from the Condensed Consolidated Balance Sheet at the time of the sales transaction. The Company classifies the proceeds received from the sales of accounts receivable as an operating cash flow in the unaudited Condensed Consolidated Statement of Cash Flows. The Company records the discount as other (income) expense, net in the Condensed Consolidated Statement of Operations and collections of accounts receivables not yet submitted to the financial institution as a financing cash flow. Other Items During the quarter ended June 30, 2021, the Company received a notice from a noncontrolling interest holder exercising its redemption rights in an international subsidiary, requiring the purchase of such interest by the Company. In the third quarter, the Company completed the transaction for approximately $22 million. The difference between the consideration paid and the noncontrolling interest was not material to the Company. On August 31, 2020, the Company divested the foam board product line in its Learning and Development segment. As a result, during the three and nine months ended September 30, 2020, the Company recorded a pretax loss of $8 million, which was included in the other (income) expense, net in the Condensed Consolidated Statement of Operations.