Subsequent Events (Details) - USD ($) shares in Millions, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 04, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Subsequent Event [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	200.0
Payments for Repurchase of Common Stock	$ 71.0	$ 29.0	$ 42.0	$ 29.0	$ 480.0
Common stock, Shares acquired	2.3