Income Taxes Schedule of Unrecognized Tax Benefits Activity (Tables)

12 Months Ended

Dec. 31, 2023

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,
	2023		2022		2021
Balance at beginning of period	$	283.5	$	262.6	$	217.6
Increases as a result of tax positions taken during a prior year	50.9		4.9		17.2
Decreases as a result of tax positions taken during a prior year	(68.2)		(10.1)		(10.4)
Settlements with taxing authorities	(5.8)		(0.7)		(8.7)
Lapse of statutes of limitation	(11.4)		(6.4)		(6.2)
Increases as a result of tax positions taken during the current year	42.0		33.2		53.1
Balance at end of period	$	291.0	$	283.5	$	262.6