Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss (Notes)

12 Months Ended

Dec. 31, 2020

Statement of Other Comprehensive Income [Abstract]

Accumulated Other Comprehensive Loss [Text Block]

ACCUMULATED OTHER COMPREHENSIVE LOSS

	Postretirement Benefit Plans		Cumulative Translation Adjustment		Accumulated Other Comprehensive Loss
As of December 31, 2017	$	(137.6)	$	(210.6)	$	(348.2)
Net change during period	6.0		(33.3)		(27.3)
As of December 31, 2018	(131.6)		(243.9)		(375.5)
Net change during period	(1.7)		(8.1)		(9.8)
As of December 31, 2019	(133.3)		(252.0)		(385.3)
Net change during period	77.4		28.5		105.9
As of December 31, 2020	$	(55.9)	$	(223.5)	$	(279.4)