Consolidated Statements of Stockholders Equity Parentheticals - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statement of Stockholders Equity Parentheticals [Abstract]
Other Comprehensive Income (Loss), Tax	$ 14.5	$ (13.3)	$ (21.0)