INCOME TAXES (Valuation Allowance) (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation allowance at beginning of year	$ (38)	$ (44)	$ (43)
Net decrease/(increase) for other foreign deferred tax assets	(1)	1	0
Net decrease/(increase) for foreign net operating loss carryforwards and tax credits	(3)	5	(1)
Valuation allowance at end of year	$ (42)	$ (38)	$ (44)

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized resulting from foreign net operating loss carryforwards and tax credits.

No definition available.

+ Details

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Namespace Prefix:	clx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized resulting from other foreign deferred tax assets.

+ References

No definition available.

+ Details

Name:	clx_ValuationAllowanceDeferredTaxAssetNetIncreaseDecreaseForOtherForeignDeferredTaxAssets
Namespace Prefix:	clx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration