Earnings per Share (Tables)

3 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Reconciliation of basic average common shares outstanding

A reconciliation of basic average common shares outstanding to diluted average common shares outstanding is as follows (in millions):

	Three Months Ended December 31,
	2018	2017
Basic average common shares outstanding	84.8	88.6
Impact of restricted shares, restricted share units and performance share units	2.1	—
Impact of convertible notes	0.6	—
Diluted average common shares outstanding	87.5	88.6