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Commitments and Contingencies - Additional Information (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) businessAcquired | Dec. 31, 2019 USD ($)
Commitments and Contingencies Disclosure [Abstract] |  |
Number of non owned sites (in sites) | 66 |
Number of national priority list (in sites) | 16 |
Number of sites not named as a potentially responsible party (PRP) the company's liability has been resolved or has been deemed de minimis (in sites) | 60 |
Incurred and claims to be resolved over extended period of time | 30 years |
Environmental reserves | $ | $ 32 | $ 32
Guarantees at carrying value | $ | $ 615 | $ 453

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- Definition Number Of waste sites included on the National Priority List promulgated pursuant to CERCLA. + References No definition available. + Details
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- Definition Carrying amount as of the balance sheet date of the liability for remediation, site restoration, postclosure, monitoring commitments, or other exit costs associated with the sale, disposal or abandonment of a particular property resulting from unanticipated contamination of the assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q4) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
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