Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2018

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 2018				30 September 2017
	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets
Derivatives
Forward exchange contracts		$104.7		$104.7		$109.9		$109.9
Interest rate management contracts	52.9		52.9		117.9		117.9
Liabilities
Derivatives
Forward exchange contracts		$73.7		$73.7		$98.0		$98.0
Interest rate management contracts	77.9		77.9		33.9		33.9
Long-term debt, including current portion	3,454.0		3,459.5		3,818.8		3,928.2

Schedule of Fair Value Assets and Liabilities Measured On Recurring Basis

The following table summarizes assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheets:

	31 March 2018								30 September 2017
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Assets at Fair Value
Derivatives
Forward exchange contracts		$104.7		$—		$104.7		$—		$109.9		$—		$109.9		$—
Interest rate management contracts	52.9		—		52.9		—		117.9		—		117.9		—
Total Assets at Fair Value		$157.6		$—		$157.6		$—		$227.8		$—		$227.8		$—
Liabilities at Fair Value
Derivatives
Forward exchange contracts		$73.7		$—		$73.7		$—		$98.0		$—		$98.0		$—
Interest rate management contracts	77.9		—		77.9		—		33.9		—		33.9		—
Total Liabilities at Fair Value		$151.6		$—		$151.6		$—		$131.9		$—		$131.9		$—