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REVENUE RECOGNITION - Rollforward of Allowance for Product Returns (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020
Allowance For Product Returns [Roll Forward] |  |  |
Beginning Balance | $ 11.8 | $ 12.8 | $ 9.8
Charged to Profit & Loss | 12.4 | 1.5 | 6.0
Deductions | (19.8) | (2.9) | (3.3)
Other Adjustments | 11.1 | 0.4 | 0.3
Ending Balance | $ 15.5 | $ 11.8 | $ 12.8

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- Definition Allowance For Product Returns + References No definition available. + Details
Name: | spb_AllowanceForProductReturns
Namespace Prefix: | spb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Allowance For Product Returns Other Adjustments + References No definition available. + Details
Name: | spb_AllowanceForProductReturnsOtherAdjustments
Namespace Prefix: | spb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Allowance For Product Returns + References No definition available. + Details
Name: | spb_AllowanceForProductReturnsRollForward
Namespace Prefix: | spb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Allowance For Product Returns Write Offs + References No definition available. + Details
Name: | spb_AllowanceForProductReturnsWriteOffs
Namespace Prefix: | spb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Provision For Product Returns + References No definition available. + Details
Name: | spb_ProvisionForProductReturns
Namespace Prefix: | spb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration