Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Carrying Value and Fair Value of Financial Instruments

The carrying values and fair values of financial instruments were as follows:

	31 March 2023		30 September 2022
	Carrying Value	Fair Value	Carrying Value	Fair Value
Assets
Derivatives
Forward exchange contracts	$110.2	$110.2	$138.6	$138.6
Interest rate management contracts	15.6	15.6	50.5	50.5
Liabilities
Derivatives
Forward exchange contracts	$84.8	$84.8	$275.3	$275.3
Interest rate management contracts	85.0	85.0	91.2	91.2
Long-term debt, including current portion and related party	9,133.9	8,409.1	7,634.1	6,721.2

Schedule of Fair Value Assets and Liabilities Measured On Recurring Basis

The table below summarizes assets and liabilities on the consolidated balance sheets that are measured at fair value on a recurring basis:

	31 March 2023				30 September 2022
	Total	Level 1	Level 2	Level 3	Total	Level 1	Level 2	Level 3
Assets at Fair Value
Derivatives
Forward exchange contracts	$110.2	$—	$110.2	$—	$138.6	$—	$138.6	$—
Interest rate management contracts	15.6	—	15.6	—	50.5	—	50.5	—
Total Assets at Fair Value	$125.8	$—	$125.8	$—	$189.1	$—	$189.1	$—
Liabilities at Fair Value
Derivatives
Forward exchange contracts	$84.8	$—	$84.8	$—	$275.3	$—	$275.3	$—
Interest rate management contracts	85.0	—	85.0	—	91.2	—	91.2	—
Total Liabilities at Fair Value	$169.8	$—	$169.8	$—	$366.5	$—	$366.5	$—