Debt (Schedule Of Debt) (Details) - USD ($) $ in Millions	Jun. 28, 2020	Sep. 30, 2019
Debt Instrument [Line Items]
Total debt	$ 2,719.5	$ 2,384.5
Unamortized discount on debt	0.0	(0.2)
Debt issuance costs	(28.4)	(33.0)
Less current portion	(13.9)	(136.9)
Long-term debt, net of current portion	2,677.2	2,214.4
Revolving Credit Facility
Debt Instrument [Line Items]
Revolver Facility	$ 528.0
Effective Rate	2.50%
SBI
Debt Instrument [Line Items]
Total debt	$ 2,719.5	2,307.5
SB/RH
Debt Instrument [Line Items]
Total debt	2,719.5	2,307.5
Debt issuance costs	(28.4)	(31.5)
Less current portion	(13.9)	(136.9)
Long-term debt, net of current portion	2,677.2	2,139.1
SB/RH \| Revolving Credit Facility
Debt Instrument [Line Items]
Revolver Facility	$ 528.0
Effective Rate	2.50%
6.625% Notes, due November 15, 2022
Debt Instrument [Line Items]
Senior notes		$ 117.4
Stated Rate		6.60%
6.625% Notes, due November 15, 2022 \| SB/RH
Debt Instrument [Line Items]
Senior notes		$ 117.4
Stated Rate		6.60%
6.625% Notes, due November 15, 2022 \| SBH and SBRH
Debt Instrument [Line Items]
Stated Rate	6.625%
6.125% Notes, due December 15, 2024
Debt Instrument [Line Items]
Senior notes	$ 250.0	$ 250.0
Stated Rate	6.10%	6.10%
6.125% Notes, due December 15, 2024 \| SB/RH
Debt Instrument [Line Items]
Senior notes	$ 250.0	$ 250.0
Stated Rate	6.10%	6.10%
6.125% Notes, due December 15, 2024 \| SBH and SBRH
Debt Instrument [Line Items]
Stated Rate	6.125%
5.00% Notes, due October 1, 2029
Debt Instrument [Line Items]
Senior notes	$ 300.0	$ 300.0
Stated Rate	5.00%	5.00%
5.00% Notes, due October 1, 2029 \| SB/RH
Debt Instrument [Line Items]
Senior notes	$ 300.0	$ 300.0
Stated Rate	5.00%	5.00%
5.00% Notes, due October 1, 2029 \| SBH and SBRH
Debt Instrument [Line Items]
Stated Rate	5.00%
5.75% Notes, due July 15, 2025
Debt Instrument [Line Items]
Senior notes	$ 1,000.0	$ 1,000.0
Stated Rate	5.80%	5.80%
5.75% Notes, due July 15, 2025 \| SB/RH
Debt Instrument [Line Items]
Senior notes	$ 1,000.0	$ 1,000.0
Stated Rate	5.80%	5.80%
5.75% Notes, due July 15, 2025 \| SBH and SBRH
Debt Instrument [Line Items]
Stated Rate	5.75%
4.00% Notes, due October 1, 2026
Debt Instrument [Line Items]
Senior notes	$ 476.8	$ 465.0
Stated Rate	4.00%	4.00%
4.00% Notes, due October 1, 2026 \| SB/RH
Debt Instrument [Line Items]
Senior notes	$ 476.8	$ 465.0
Stated Rate	4.00%	4.00%
4.00% Notes, due October 1, 2026 \| SBH and SBRH
Debt Instrument [Line Items]
Stated Rate	4.00%
Other notes and obligations
Debt Instrument [Line Items]
Other notes and obligations	$ 3.6	$ 9.5
Stated Rate	8.80%	10.40%
Other notes and obligations \| SB/RH
Debt Instrument [Line Items]
Other notes and obligations	$ 3.6	$ 9.5
Stated Rate	8.80%	10.40%
Obligations under capital leases
Debt Instrument [Line Items]
Obligations under capital leases	$ 161.1	$ 165.6
Stated Rate	5.60%	5.60%
Obligations under capital leases \| SB/RH
Debt Instrument [Line Items]
Obligations under capital leases	$ 161.1	$ 165.6
Stated Rate	5.60%	5.60%
Salus - unaffiliated long-term debt of consolidated VIE
Debt Instrument [Line Items]
Long-term debt	$ 0.0	$ 77.0

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Amount, after accumulated amortization, of debt discount (premium).

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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