Stockholders' Equity Share Repurchase Programs (Details) - USD ($) $ / shares in Units, shares in Millions		12 Months Ended
	Nov. 04, 2020	Dec. 31, 2020	Feb. 06, 2020
Equity [Abstract]
Share Repurchase Program, Open Market	300	6
Share repurchase program, open market, average price per share		$ 32.69
Share repurchase program, remaining authorized repurchase amount		$ 300,000,000
Stock Repurchase Program, Authorized Amount			$ 200,000,000