Contingencies and Commitments - Contingencies (Details) $ in Thousands, € in Millions			12 Months Ended
	Dec. 23, 2020 defendant	Jun. 06, 2019 USD ($) survivor	Dec. 31, 2022 USD ($) location	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)	Jun. 26, 2020 USD ($) entity	Sep. 30, 2018 USD ($)	Sep. 30, 2018 EUR (€)	Dec. 31, 2017 claim
Loss Contingencies [Line Items]
Number of cleanup locations (more than) | location			30
Remediation reserve balance			$ 16,000	$ 15,000
Remediation reserve balance, classified as a current liability			6,000
Payments related to remediation expenses applied against the reserve			$ 4,000	$ 2,000
Total combined assessments					$ 0			$ 64,000
Number of defendants | defendant	23
Number of plaintiffs | survivor		247
Monetary damages sought		$ 75
Number of claims | claim										2
Lehman Brothers International (Europe) (“LBIE”) Claims
Loss Contingencies [Line Items]
Number of entities | entity							2
Estimate of claim							$ 64,000
Extension period			3 years
Amount reserved			$ 65,000
Spain
Loss Contingencies [Line Items]
Income taxes receivable					$ 53,000	€ 45
Tax agreement, indemnification of ultimate liability, percent					33.66%	33.66%
Alcoa Corporation
Loss Contingencies [Line Items]
Tax agreement, indemnification of ultimate liability, percent					49.00%	49.00%
Arconic Corporation
Loss Contingencies [Line Items]
Tax agreement, indemnification of ultimate liability, percent					33.66%	33.66%
Euro
Loss Contingencies [Line Items]
Total combined assessments | €									€ 54
Recurring Costs of Managing Hazardous Substances and Environmental Programs | Maximum
Loss Contingencies [Line Items]
Percentage of cost of goods sold			1.00%