Employee Benefits Fair Value of Pension Plan Assets (Tables)

12 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Fair Value of Pension Plan Assets [Table Text Block]

The following table presents the fair value of our domestic and foreign pension plan assets as of December 31, 2021 and 2020, and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value. See Note 13 for a description of the fair value hierarchy.

	December 31, 2021								December 31, 2020
Plan assets subject to fair value hierarchy	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Registered investment companies	$	14.1	$	0.0	$	0.0	$	14.1	$	19.3	$	0.0	$	0.0	$	19.3
Limited partnerships	0.0		0.0		24.0		24.0		0.0		0.0		25.9		25.9
Fixed income securities	29.0		0.0		0.0		29.0		22.7		0.0		0.0		22.7
Insurance contracts	0.0		2.0		0.0		2.0		0.0		3.6		0.0		3.6
Other	30.7		0.0		0.0		30.7		28.9		0.0		0.0		28.9
Total plan assets, subject to leveling	$	73.8	$	2.0	$	24.0	$	99.8	$	70.9	$	3.6	$	25.9	$	100.4
Plan assets measured at net asset value
Other investments measured at net asset value 1							483.1								462.1
Total plan assets							$	582.9							$	562.5

1Certain investments that are measured at fair value using the net asset value per share (or its equivalent) as a practical expedient have not been classified in the fair value hierarchy but are included to reconcile to the amounts presented in the fair value of plan assets table above.