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Pension and Other Postretirement Benefits - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer matching contribution percentage	80.00%
Maximum percentage of employee's compensation eligible for employer matching contributions	5.00%
Additional employer annual contribution percentage	5.00%
Charges for defined contribution plans	$ 15.6	$ 16.6	$ 15.3
UNITED STATES
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected return on plan assets	2.25%	3.00%	4.25%
Decrease in rate of return on plan assets	0.75%
Estimated inflation rate assumptions for rate of return on plan assets	2.20%
UNITED STATES | Fixed Income Investments
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target asset allocation	100.00%
Pensions
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated benefit obligation	$ 1,340.8	$ 1,435.9
Expected return on plan assets	2.25%	3.00%	4.25%

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Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

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Amount of cost for defined contribution plan.

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