Employee Benefits Schedule of Net Benefit Costs (Tables)

12 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

Net Periodic Cost

The components of net periodic benefit cost and key assumptions are listed below.

	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
Years ended December 31,	2021		2020		2019		2021		2020		2019		2021		2020		2019
Service cost	$	0.0	$	0.0	$	0.0	$	4.5	$	4.9	$	4.8	$	0.0	$	0.0	$	0.0
Interest cost	2.9		3.7		4.8		8.0		9.4		12.4		0.7		0.8		1.2
Expected return on plan assets	(5.6)		(5.7)		(5.9)		(20.8)		(18.8)		(17.4)		0.0		0.0		0.0
Curtailment and settlement	1.5		0.0		0.0		(0.9)		(0.1)		0.0		0.0		0.0		0.0
Amortization of:
Prior service cost (credit)	0.0		0.0		0.0		0.1		0.1		0.1		0.0		0.0		(0.2)
Net actuarial losses	1.7		1.7		1.9		6.7		5.4		4.8		0.9		0.2		0.1
Net periodic cost	$	0.5	$	(0.3)	$	0.8	$	(2.4)	$	0.9	$	4.7	$	1.6	$	1.0	$	1.1

Assumptions

	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
Years ended December 31,	2021		2020		2019		2021		2020		2019		2021		2020		2019
Net periodic cost
Discount rate	2.60	%	3.35	%	4.35	%	1.35	%	1.84	%	2.61	%	2.50	%	3.25	%	4.30	%
Rate of compensation increase	N/A		N/A		N/A		2.47	%	2.51	%	2.58	%	N/A		N/A		N/A
Expected return on plan assets	5.75	%	6.00	%	7.00	%	4.47	%	4.70	%	4.76	%	N/A		N/A		N/A
Interest crediting rates	5.10	%	5.10	%	5.10	%	1.50	%	1.37	%	1.44	%	N/A		N/A		N/A
Benefit obligation
Discount rate	2.95	%	2.60	%	3.35	%	1.86	%	1.35	%	1.84	%	2.90	%	2.50	%	3.25	%
Rate of compensation increase	N/A		N/A		N/A		2.65	%	2.47	%	2.51	%	N/A		N/A		N/A
Interest crediting rates	5.10	%	5.10	%	5.10	%	1.50	%	1.50	%	1.37	%	N/A		N/A		N/A
Health care cost trend rate assumed for next year
Initial rate (weighted-average)													6.50	%	6.75	%	7.00	%
Year ultimate rate is reached													2028		2028		2028
Ultimate rate													5.00	%	5.00	%	5.00	%