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Commitments and Contingent Liabilities (Details) - USD ($) $ in Millions | 1 Months Ended |
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2018
PRP site |  |
Commitments And Contingent Liabilities [Line Items] |  |
Estimated future remediation costs |  | $ 7
Non- PRP sites |  |
Commitments And Contingent Liabilities [Line Items] |  |
Estimated future remediation costs |  | $ 9
Penalty Notification Alleging Misclassification of Importation of Certain Goods into U.S. During 2004-2009 | U.S. Customs and Border Protection (CBP) |  |
Commitments And Contingent Liabilities [Line Items] |  |
Assessed penalty | $ 8 |
Penalties paid | $ 1 |

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