| **SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)** | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
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| **Accounting Policies [Abstract]**                        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| Basis of Presentation                                     | Basis of PresentationThe unaudited interim condensed consolidated financial statements for the three months ended September 30, 2020 and 2019, in the opinion of management, reflect all adjustments (consisting of normal recurring accruals) necessary for a fair presentation of the consolidated results of operations, financial position and cash flows of The Clorox Company and its controlled subsidiaries (the Company) for the periods presented. However, the financial results for interim periods are not necessarily indicative of the results that may be expected for a full fiscal year or for any other future period. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (U.S. GAAP) have been omitted or condensed pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC). The information in this report should be read in conjunction with the Company’s Annual Report on Form 10-K filed with the SEC for the fiscal year ended June 30, 2020, which includes a complete set of footnote disclosures, including the Company’s significant accounting policies.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Recently Issued Accounting Standards                      | Recently Issued Accounting Standards Recently Issued Accounting Standards Not Yet AdoptedIn December 2019, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2019-12, “Income Taxes (ASC 740): Simplifying the Accounting for Income Taxes,” which improves consistency in the application of accounting for income taxes by removing certain exceptions to the general principles in ASC 740 and by clarifying and amending existing guidance. The standard will be effective for the Company beginning in the first quarter of fiscal year 2022, with early adoption permitted. The amendments that are related to changes in ownership of foreign equity method investments or foreign subsidiaries are to be applied on a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. The amendments that are related to franchise taxes that are partially based on income are to be applied on either a retrospective basis for all periods presented or a modified retrospective basis through a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. All other amendments under this ASU are to be applied on a prospective basis. The Company is currently evaluating the impact that the adoption of this guidance will have on its consolidated financial statements.Recently Adopted Accounting StandardsIn January 2017, the FASB issued ASU No. 2017-04, “Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,” which eliminates the requirement to calculate the implied fair value of goodwill to measure a goodwill impairment charge. The Company adopted this guidance as of July 1, 2020 on a prospective basis, and the adoption did not have a material impact on the Company’s consolidated financial statements, as the Company had no goodwill impairments during the first quarter of fiscal year 2021. The future impact of this new standard will depend on the specific facts and circumstances of future impairments that may occur, if any. |
| Fair Value Measurement                                    | Fair Value MeasurementsFinancial assets and liabilities measured at fair value on a recurring basis in the condensed consolidated balance sheets are required to be classified and disclosed in one of the following three categories of the fair value hierarchy:Level 1: Quoted market prices in active markets for identical assets or liabilities.Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data.Level 3: Unobservable inputs reflecting the reporting entity’s own assumptions.As of September 30, 2020 and June 30, 2020, the Company’s financial assets and liabilities that were measured at fair value on a recurring basis included derivative financial instruments, which were classified as either Level 1 or Level 2, and trust assets to fund the Company’s nonqualified deferred compensation plans, which were classified as Level 1.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Segment Results                                           | The Company operates through strategic business units (SBUs) that are aggregated into four reportable segments based on the economics and nature of the products sold: Health and Wellness, Household, Lifestyle and International. Prior periods presented have been recast to reflect the reportable segment changes effective in the fourth quarter of fiscal year 2020.Certain non-allocated administrative costs, interest income, interest expense and various other non-operating income and expenses are reflected in Corporate. Corporate assets include cash and cash equivalents, prepaid expenses and other current assets, property and equipment, operating lease right-of-use assets, other long-term assets and deferred taxes.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |

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Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).
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Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.
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Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.
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Disclosure of accounting policy for segment reporting.
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