Basis of Presentation and Accounting Policies (Tables)

3 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table reconciles basic and diluted (loss) earnings per share (EPS) amounts (in millions, except per share amounts):

	Three Months Ended December 31,
	2017			2016
Net (loss) income	$	(236.4	)	$	214.7
Less: Allocation to participating securities	0.2			(0.2		)
Net (loss) income available to common shareowners	$	(236.2	)	$	214.5
Basic weighted average outstanding shares	128.2			128.3
Effect of dilutive securities
Stock options	—			1.2
Performance shares	—			0.2
Diluted weighted average outstanding shares	128.2			129.7
(Loss) Earnings per share:
Basic	$	(1.84	)	$	1.67
Diluted	$	(1.84	)	$	1.65