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.

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481549/505-30-45-1

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Balance Type:	na
Period Type:	duration

- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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Balance Type:	na
Period Type:	duration

- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481549/505-30-45-1

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:
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Balance Type:
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- Details

Name:	srt_ShareRepurchaseProgramAxis=spb_OpenMarketPurchasesMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	srt_ShareRepurchaseProgramAxis=spb_AcceleratedShareRepurchaseMember
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SHAREHOLDERS' EQUITY - Schedule of Activity of Common Stock Repurchase Program (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended					6 Months Ended
	Mar. 30, 2025	Feb. 28, 2025	Dec. 29, 2024	Mar. 31, 2024	Dec. 31, 2023	Mar. 30, 2025	Mar. 31, 2024
Equity, Class of Treasury Stock [Line Items]
Number of Shares Repurchased (in shares)						2.8	5.8
Average price per share (in dollars per share)						$ 84.36	$ 73.32
Amount	$ 159.9		$ 72.9	$ 97.6
Treasury Stock
Equity, Class of Treasury Stock [Line Items]
Amount	$ 159.9		$ 72.9	$ 97.6		$ 232.8	$ 423.7
Open Market Purchases
Equity, Class of Treasury Stock [Line Items]
Number of Shares Repurchased (in shares)	2.0	1.8		1.2		2.8	4.5
Average price per share (in dollars per share)	$ 81.66			$ 80.62		$ 84.36	$ 75.41
Amount		$ 150.0
Open Market Purchases \| Treasury Stock
Equity, Class of Treasury Stock [Line Items]
Amount	$ 159.9			$ 97.6		$ 232.8	$ 340.5
ASR
Equity, Class of Treasury Stock [Line Items]
Number of Shares Repurchased (in shares)						0.0	1.3
Average price per share (in dollars per share)						$ 0	$ 65.84
Amount					$ 0.0
ASR \| Treasury Stock
Equity, Class of Treasury Stock [Line Items]
Amount					$ 83.2	$ 0.0	$ 83.2