| **CYBERATTACK (Narrative) (Details) - USD ($) $ in Millions** | 3 Months Ended | 9 Months Ended |
|---------------------------------------------------------------|----------------|----------------|
||
| **Unusual or Infrequent Item, or Both [Line Items]**          |           |           |   |   |
| Incremental expenses                                          | $ 8            | $ 0            | $ 57 | $ 0 |
| Cyberattack                                                   |           |           |   |   |
| **Unusual or Infrequent Item, or Both [Line Items]**          |           |           |   |   |
| Incremental expenses                                          | 8              |           | 57 |   |
| Insurance proceeds                                            | $ 0            |           | $ 0 |   |

| 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
+ Details**Name:**us-gaap_OtherNonrecurringExpense**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of insurance proceeds for an event or transaction that is unusual in nature or infrequent in occurrence, or both.
+ 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
+ Details**Name:**us-gaap_UnusualOrInfrequentItemInsuranceProceeds**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| 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:** |