Common Stock (Tables)

9 Months Ended

Jul. 31, 2016

Equity [Abstract]

Class of Treasury Stock

Repurchase Activity

	Nine Months Ended July 31,
(in millions, except per share amounts)	2016		2015
Total number of shares repurchased	1.0		0.6
Average price paid per share	$	31.42	$	32.23
Total cash paid for share repurchases	$	31.2	$	20.0