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Landfill and Environmental Remediation Liabilities | 3 Months Ended
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Mar. 31, 2024
Landfill and Environmental Remediation Liabilities |
Landfill and Environmental Remediation Liabilities | 2. Landfill and Environmental Remediation Liabilities Liabilities for landfill and environmental remediation costs are presented in the table below (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2024 | ​ | December 31, 2023
​ | ​ | ​ | ​ | ​ | Environmental | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Environmental | ​ | ​ | ​
​ |  | Landfill |  | Remediation |  | Total |  | Landfill |  | Remediation |  | Total
Current (in accrued liabilities) |  | $ | 142 | ​ | $ | 32 | ​ | $ | 174 | ​ | $ | 143 | ​ | $ | 31 | ​ | $ | 174
Long-term | ​ |  | 2,733 | ​ |  | 179 | ​ |  | 2,912 |  |  | 2,710 | ​ |  | 178 | ​ |  | 2,888
​ |  | $ | 2,875 | ​ | $ | 211 | ​ | $ | 3,086 | ​ | $ | 2,853 | ​ | $ | 209 | ​ | $ | 3,062
​ The changes to landfill and environmental remediation liabilities for the three months ended March 31, 2024 are reflected in the table below (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Environmental
​ |  | Landfill |  | Remediation
December 31, 2023 | ​ | $ | 2,853 | ​ | $ | 209
Obligations incurred and capitalized | ​ |  | 20 |  |  | —
Obligations settled | ​ |  | (20) |  |  | (6)
Interest accretion | ​ |  | 33 |  |  | —
Revisions in estimates | ​ |  | (10) |  |  | 8
Acquisitions, divestitures and other adjustments | ​ |  | (1) |  |  | —
March 31, 2024 | ​ | $ | 2,875 | ​ | $ | 211
​ At several of our landfills, we provide financial assurance by depositing cash into restricted trust funds for purposes of settling final capping, closure, post-closure and environmental remediation obligations. Generally, these trust funds are established to comply with statutory requirements and operating agreements. See Note 11 for additional information related to these trusts.

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