Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

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

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- Definition

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.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

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- Definition

Indicates line item in statement of financial position that includes finance lease liability.

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- Definition

Amount of long-term debt and lease obligation, classified as noncurrent.

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- Definition

Amount of long-term debt and lease obligation, classified as current.

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- Definition

Amount of long-term debt and lease obligation, including portion classified as current.

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No definition available.

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- Definition

Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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- References

No definition available.

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- Definition

Weighted average interest rate of short-term debt outstanding calculated over time.

+ References

No definition available.

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Debt and Financing Arrangements - Long-term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Long-term debt	Long-term debt
Finance lease obligation	$ 1	$ 1
Less: debt issuance costs	(18)	(32)
Gross long-term debt	2,575	3,679
Less: current portion	11	167
Long-term debt	2,564	3,512
Short-term debt:
Other bank borrowings	3	17
Short-term debt	$ 3	$ 17
Weighted average interest rate on short-term debt outstanding (as percent)	6.00%	380.00%
European Investment Bank Loan - EURIBOR plus 1.58% due in 2022 \| EURIBOR
Debt Instrument [Line Items]
Basis spread	1.58%
Term Loan B - LIBOR plus 3.25% due in 2028
Debt Instrument [Line Items]
Long-term debt, gross	$ 988	$ 998
Term Loan B - LIBOR plus 3.25% due in 2028 \| LIBOR
Debt Instrument [Line Items]
Interest rate	3.25%
Unsecured debt \| 4.875% Notes due in 2026
Debt Instrument [Line Items]
Long-term debt, gross	$ 795	795	$ 797
Interest rate	4.875%
Unsecured debt \| 3.50% Notes due in 2024
Debt Instrument [Line Items]
Long-term debt, gross	$ 809	1,161
Interest rate	3.50%
Unsecured debt \| 9.00% Notes due in 2025
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	600
Interest rate	9.00%
Unsecured debt \| European Investment Bank Loan - EURIBOR plus 1.58% due in 2022
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	$ 156
Unsecured debt \| European Investment Bank Loan - EURIBOR plus 1.58% due in 2022 \| EURIBOR
Debt Instrument [Line Items]
Basis spread	1.58%