Summary of Significant Accounting Policies (Policies)	3 Months Ended
Oct. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited Condensed Consolidated Financial Statements of Donaldson Company, Inc. and its subsidiaries (the Company) have been prepared in accordance with generally accepted accounting principles (GAAP) in the United States (U.S.) and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and notes required for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair statement of earnings, comprehensive income, financial position, cash flows and changes in stockholders’ equity have been included and are of a normal recurring nature. Operating results for the three months ended October 31, 2022 are not necessarily indicative of the results that may be expected for future periods. The year-end Condensed Consolidated Balance Sheet information was derived from the Company’s Audited Consolidated Financial Statements but does not include all disclosures required by GAAP. For further information, refer to the Audited Consolidated Financial Statements and Notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended July 31, 2022.
Principles Of Consolidation	Principles of Consolidation The Condensed Consolidated Financial Statements include the accounts of the Company and all its majority-owned subsidiaries. All intercompany accounts and transactions have been eliminated. The Company’s joint ventures are not majority-owned and are accounted for under the equity method. Certain reclassifications to previously reported financial information on the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Changes in Stockholders’ Equity have been made to conform to the current period presentation.
Use of Estimates	Use of Estimates The preparation of the Company’s financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amount of assets and liabilities and the disclosures regarding contingent assets and liabilities at period end and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Operating Environment Inflation While inflation was not as significant in the first quarter of fiscal 2023, the Company continues to experience the effects of inflation from the prior year related to raw materials and other expenses, including labor and energy. These inflationary pressures have had an adverse impact on the Company’s profit margins throughout the first quarter of fiscal 2023, however they have been generally mitigated by pricing actions implemented in the prior year.
New Accounting Standards Not Yet Adopted	New Accounting Standards Not Yet Adopted The Company considers the applicability and impact of the Financial Accounting Standards Board’s (FASB) Accounting Standards Updates (ASUs) issued but not yet adopted. In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805), Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. This ASU clarifies that an acquirer of a business should recognize and measure contract assets and contract liabilities in a business combination in accordance with ASU 2014-09, Revenue from Contracts with Customers (Topic 606) as if the entity had originated the contracts. The guidance is effective for fiscal years beginning after December 15, 2022, with early application permitted. This ASU is applicable to the Company’s fiscal year beginning in the first quarter of fiscal 2024. The Company does not expect adoption of this standard will have a material impact on its financial statements. In June 2022, the FASB issued ASU 2022-03, Fair Value Measurement (Topic 820), Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions, which clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair values; it also requires additional disclosures, including the nature and remaining duration of such restrictions. The guidance is effective for fiscal years beginning after December 15, 2023, with early application permitted. This ASU is applicable to the Company’s fiscal year beginning in the first quarter of fiscal 2025. The Company does not expect adoption of this standard will have a material impact on its financial statements.

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Oct. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The accompanying unaudited Condensed Consolidated Financial Statements of Donaldson Company, Inc. and its subsidiaries (the Company) have been prepared in accordance with generally accepted accounting principles (GAAP) in the United States (U.S.) and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and notes required for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair statement of earnings, comprehensive income, financial position, cash flows and changes in stockholders’ equity have been included and are of a normal recurring nature. Operating results for the three months ended October 31, 2022 are not necessarily indicative of the results that may be expected for future periods. The year-end Condensed Consolidated Balance Sheet information was derived from the Company’s Audited Consolidated Financial Statements but does not include all disclosures required by GAAP. For further information, refer to the Audited Consolidated Financial Statements and Notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended July 31, 2022.

Principles Of Consolidation

Principles of Consolidation

The Condensed Consolidated Financial Statements include the accounts of the Company and all its majority-owned subsidiaries. All intercompany accounts and transactions have been eliminated. The Company’s joint ventures are not majority-owned and are accounted for under the equity method. Certain reclassifications to previously reported financial information on the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Changes in Stockholders’ Equity have been made to conform to the current period presentation.

Use of Estimates

The preparation of the Company’s financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amount of assets and liabilities and the disclosures regarding contingent assets and liabilities at period end and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.

Operating Environment

Inflation

While inflation was not as significant in the first quarter of fiscal 2023, the Company continues to experience the effects of inflation from the prior year related to raw materials and other expenses, including labor and energy. These inflationary pressures have had an adverse impact on the Company’s profit margins throughout the first quarter of fiscal 2023, however they have been generally mitigated by pricing actions implemented in the prior year.

New Accounting Standards Not Yet Adopted

The Company considers the applicability and impact of the Financial Accounting Standards Board’s (FASB) Accounting Standards Updates (ASUs) issued but not yet adopted.

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805), Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. This ASU clarifies that an acquirer of a business should recognize and measure contract assets and contract liabilities in a business combination in accordance with ASU 2014-09, Revenue from Contracts with Customers (Topic 606) as if the entity had originated the contracts. The guidance is effective for fiscal years beginning after December 15, 2022, with early application permitted. This ASU is applicable to the Company’s fiscal year beginning in the first quarter of fiscal 2024. The Company does not expect adoption of this standard will have a material impact on its financial statements.

In June 2022, the FASB issued ASU 2022-03, Fair Value Measurement (Topic 820), Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions, which clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair values; it also requires additional disclosures, including the nature and remaining duration of such restrictions. The guidance is effective for fiscal years beginning after December 15, 2023, with early application permitted. This ASU is applicable to the Company’s fiscal year beginning in the first quarter of fiscal 2025. The Company does not expect adoption of this standard will have a material impact on its financial statements.