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Commitments and Contingencies - Narrative (Details) $ in Millions	Dec. 31, 2020 USD ($) employee	Dec. 31, 2019 USD ($)
Loss Contingencies [Line Items]
Reserves for pending legal disputes, including commercial disputes and other matters	$ 17.2	$ 14.0
Environmental reserves	$ 8.9	$ 9.3
Percentage of employees that are members of trade union and employed under labor agreements	47.00%
Unionized workforce subject to labor agreement expiring in 2019
Loss Contingencies [Line Items]
Percentage of employees that are members of trade union and employed under labor agreements	85.00%
Number of employees | employee	82,500
Unionized workforce subject to labor agreement expiring in 2019 | United States and Canada
Loss Contingencies [Line Items]
Percentage of employees that are members of trade union and employed under labor agreements	1.00%

X

- Definition

The number of the Company's employees that are members of industrial trade unions and are employed under the terms of collective bargaining agreements that are scheduled to expire in 2012.

+ References

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The percentage of the Company's employees that are members of industrial trade unions and are employed under the terms of collective bargaining agreements.

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
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- Definition

Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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