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INCOME TAXES (Valuation Allowance) (Details) - USD ($) $ in Millions | 12 Months Ended
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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)

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- Definition 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. + References No definition available. + Details
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Namespace Prefix: | clx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- 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
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Balance Type: | credit
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- 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
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Period Type: | instant

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- 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