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Landfill and Environmental Remediation Liabilities (Tables) | 6 Months Ended
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Jun. 30, 2023
Landfill and Environmental Remediation Liabilities |
Liabilities for Landfill and Environmental Remediation Costs | Liabilities for landfill and environmental remediation costs are presented in the table below (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2023 | ​ | December 31, 2022
​ | ​ | ​ | ​ | ​ | Environmental | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Environmental | ​ | ​ | ​
​ |  | Landfill |  | Remediation |  | Total |  | Landfill |  | Remediation |  | Total
Current (in accrued liabilities) |  | $ | 140 | ​ | $ | 31 | ​ | $ | 171 | ​ | $ | 137 | ​ | $ | 31 | ​ | $ | 168
Long-term | ​ |  | 2,569 | ​ |  | 165 | ​ |  | 2,734 |  |  | 2,527 | ​ |  | 173 | ​ |  | 2,700
​ |  | $ | 2,709 | ​ | $ | 196 | ​ | $ | 2,905 | ​ | $ | 2,664 | ​ | $ | 204 | ​ | $ | 2,868
Changes to Landfill and Environmental Remediation Liabilities | The changes to landfill and environmental remediation liabilities for the six months ended June 30, 2023 are reflected in the table below (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Environmental
​ |  | Landfill |  | Remediation
December 31, 2022 | ​ | $ | 2,664 | ​ | $ | 204
Obligations incurred and capitalized | ​ |  | 40 |  |  | —
Obligations settled | ​ |  | (63) |  |  | (12)
Interest accretion | ​ |  | 62 |  |  | 3
Revisions in estimates and interest rate assumptions | ​ |  | 4 |  |  | 2
Acquisitions, divestitures and other adjustments | ​ |  | 2 |  |  | (1)
June 30, 2023 | ​ | $ | 2,709 | ​ | $ | 196
​

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- Definition Tabular disclosure of material liabilities for remediation, site restoration, postclosure, monitoring commitments, or other exit costs that may occur on the sale, disposal or abandonment of a property as a result of unanticipated contamination of the assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480102/450-20-S99-1 + Details
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- Definition Asset Retirement Obligation And Environmental Remediation Rollforward Analysis Table [Text Block] + References No definition available. + Details
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