Debt (Summary of Outstanding Debt) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021
Debt Disclosure [Abstract]
Short-term borrowings	$ 10.7	$ 2.4
Current portion of long-term debt	548.3	484.5
Long-term debt	6,433.8	6,875.7
Long-term debt – related party	652.0	274.6
Total Debt	$ 7,644.8	$ 7,637.2
Short-term debt, weighted average interest rate	4.20%	0.60%

Amount of short-term and long-term debt and lease obligation.

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

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

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The amount for notes payable (written promise to pay), payable to related parties, which are due after one year (or one business cycle).

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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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Weighted average interest rate of short-term debt outstanding calculated at point in time.

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