Retirement Benefits (Tables)

6 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Periodic Benefit Cost

The components of net periodic benefit cost for the defined benefit pension and other postretirement benefit plans for the three and six months ended 31 March 2017 and 2016 were as follows:

	Pension Benefits												Other Benefits
	2017						2016						2017		2016
Three Months Ended 31 March	U.S.			International			U.S.			International
Service cost	$	6.9		$	6.3		$	9.3		$	6.1		$	.2	$	.6
Interest cost	27.6			7.9			27.7			11.1			.4		.5
Expected return on plan assets	(51.7		)	(18.3		)	(50.5		)	(19.6		)	—		—
Prior service cost amortization	.6			(.1		)	.8			(.1		)	—		—
Actuarial loss amortization	20.9			13.2			21.5			9.1			—		.1
Settlements	4.1			4.0			2.6			—			—		—
Curtailment	.1			1.8			—			—			—		—
Special termination benefits	(.1		)	.1			.6			—			—		—
Other	—			(2.2		)	—			.5			—		—
Net periodic benefit cost (Total)	$	8.4		$	12.7		$	12.0		$	7.1		$	.6	$	1.2
Less: Discontinued Operations	(.1		)	(3.4		)	(2.1		)	(.2		)	—		—
Net periodic benefit cost (Continuing Operations)	$	8.3		$	9.3		$	9.9		$	6.9		$	.6	$	1.2

	Pension Benefits												Other Benefits
	2017						2016						2017		2016
Six Months Ended 31 March	U.S.			International			U.S.			International
Service cost	$	15.2		$	13.0		$	18.3		$	12.3		$	.7	$	1.1
Interest cost	52.5			15.5			55.4			22.7			.8		1.0
Expected return on plan assets	(104.4		)	(36.8		)	(101.0		)	(40.3		)	—		—
Prior service cost amortization	1.2			(.1		)	1.5			(.1		)	—		—
Actuarial loss amortization	47.0			27.1			42.6			18.3			.2		.3
Settlements	4.1			1.7			2.6			—			—		—
Curtailment	4.3			(1.3		)	—			—			—		—
Special termination benefits	1.0			.5			.6			—			—		—
Other	—			.5			—			1.0			—		—
Net periodic benefit cost (Total)	$	20.9		$	20.1		$	20.0		$	13.9		$	1.7	$	2.4
Less: Discontinued Operations	(.7		)	(4.1		)	(3.9		)	(1.6		)	—		—
Net periodic benefit cost (Continuing Operations)	$	20.2		$	16.0		$	16.1		$	12.3		$	1.7	$	2.4