| **CYBERATTACK (Summary of Costs Recognized from Cyberattack) (Details) - USD ($) $ in Millions** | 3 Months Ended | 6 Months Ended |
|--------------------------------------------------------------------------------------------------|----------------|----------------|
||
| **Unusual or Infrequent Item, or Both [Line Items]**                                             |           |           |   |   |
| Total                                                                                            | $ 25           | $ 0            | $ 49 | $ 0 |
| Cyberattack                                                                                      |           |           |   |   |
| **Unusual or Infrequent Item, or Both [Line Items]**                                             |           |           |   |   |
| Total                                                                                            | 25             |           | 49 |   |
| Cyberattack | Costs of products sold                                                             |           |           |   |   |
| **Unusual or Infrequent Item, or Both [Line Items]**                                             |           |           |   |   |
| Total                                                                                            | 9              |           | 20 |   |
| Cyberattack | Selling and administrative expenses                                                |           |           |   |   |
| **Unusual or Infrequent Item, or Both [Line Items]**                                             |           |           |   |   |
| Total                                                                                            | $ 16           |           | $ 29 |   |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of other expense that is infrequent in occurrence or unusual in nature.
+ References
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483613/220-20-50-1
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| X                                                                                                                                                                                                                                                                                                                                                                                                                        |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
+ Details**Name:**us-gaap_UnusualOrInfrequentItemLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_UnusualOrInfrequentItemAxis=clx_CyberattackMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |