Income Taxes Summary of Valuation Allowance (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Summary of Valuation Allowance [Table Text Block]

The change in the valuation allowance is listed below.

	Years ended December 31,
	2021		2020		2019
Balance at beginning of period	$	197.1	$	164.2	$	211.0
(Reversed) charged to costs and expenses	(45.1)		17.3		(24.9)
Charged (reversed) to gross tax assets and other accounts 1	0.9		9.9		(19.8)
Foreign currency translation	(6.9)		5.7		(2.1)
Balance at end of period	$	146.0	$	197.1	$	164.2