Retirement Benefits (Tables)

3 Months Ended

Dec. 31, 2015

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Components of net pension costs

	U.S. Pension Benefits						Non-U.S. Pension Benefits
	Three Months Ended December 31,						Three Months Ended December 31,
	2015			2014			2015			2014
Service costs	$	1.0		$	1.1		$	0.6		$	0.4
Interest costs	2.4			3.6			0.6			0.8
Expected return on plan assets	(2.4		)	(3.5		)	(0.3		)	(0.3		)
Amortization of unrecognized prior service costs, net	0.1			0.2			—			—
Amortization of net loss	0.9			1.2			0.2			—
Net pension costs	$	2.0		$	2.6		$	1.1		$	0.9