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Landfill and Environmental Remediation Liabilities (Tables) | 6 Months Ended
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Jun. 30, 2025
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, 2025 | ​ | December 31, 2024
​ | ​ | ​ | ​ | ​ | Environmental | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Environmental | ​ | ​ | ​
​ |  | Landfill |  | Remediation |  | Total |  | Landfill |  | Remediation |  | Total
Current (in accrued liabilities) |  | $ | 180 | ​ | $ | 55 | ​ | $ | 235 | ​ | $ | 177 | ​ | $ | 54 | ​ | $ | 231
Long-term | ​ |  | 2,924 | ​ |  | 162 | ​ |  | 3,086 |  |  | 2,880 | ​ | ​ | 168 | ​ | ​ | 3,048
​ |  | $ | 3,104 | ​ | $ | 217 | ​ | $ | 3,321 | ​ | $ | 3,057 | ​ | $ | 222 | ​ | $ | 3,279
Changes to Landfill and Environmental Remediation Liabilities | The changes to landfill and environmental remediation liabilities for the six months ended June 30, 2025 are reflected in the table below (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Environmental
​ |  | Landfill |  | Remediation
December 31, 2024 | ​ | $ | 3,057 | ​ | $ | 222
Obligations incurred and capitalized | ​ |  | 42 |  |  | —
Obligations settled | ​ |  | (73) |  |  | (10)
Interest accretion | ​ |  | 71 |  |  | —
Revisions in estimates | ​ |  | — |  |  | 5
Acquisitions, divestitures and other adjustments | ​ |  | 7 |  |  | —
June 30, 2025 | ​ | $ | 3,104 | ​ | $ | 217

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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 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-9 Reference 2: 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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