Income Taxes Schedule of Unrecognized Tax Benefits Activity (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Unrecognized Tax Benefits Activity [Table Text Block]

The table below summarizes the activity related to our unrecognized tax benefits.

	Years ended December 31,
	2021		2020		2019
Balance at beginning of period	$	217.6	$	345.3	$	335.4
Increases as a result of tax positions taken during a prior year	17.2		18.1		22.7
Decreases as a result of tax positions taken during a prior year	(10.4)		(165.7)		(25.8)
Settlements with taxing authorities	(8.7)		(6.2)		(8.1)
Lapse of statutes of limitation	(6.2)		(0.7)		(0.6)
Increases as a result of tax positions taken during the current year	53.1		26.8		21.7
Balance at end of period	$	262.6	$	217.6	$	345.3