Preferred and Common Stock (Tables)

12 Months Ended

Oct. 31, 2018

Stockholders' Equity Note [Abstract]

Schedule of Repurchase Activity

Repurchase Activity

	Years Ended October 31,
(in millions, except per share amounts)	2018		2017		2016
Total number of shares purchased	—		0.2		1.4
Average price paid per share	$	—	$	40.07	$	33.48
Total cash paid for share repurchases	$	—	$	7.9	$	46.6