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v3.23.1

Landfill and Environmental Remediation Liabilities | 3 Months Ended
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Mar. 31, 2023
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, 2023 | ​ | December 31, 2022
​ | ​ | ​ | ​ | ​ | Environmental | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Environmental | ​ | ​ | ​
​ |  | Landfill |  | Remediation |  | Total |  | Landfill |  | Remediation |  | Total
Current (in accrued liabilities) |  | $ | 136 | ​ | $ | 32 | ​ | $ | 168 | ​ | $ | 137 | ​ | $ | 31 | ​ | $ | 168
Long-term | ​ |  | 2,561 | ​ |  | 168 | ​ |  | 2,729 |  |  | 2,527 | ​ |  | 173 | ​ |  | 2,700
​ |  | $ | 2,697 | ​ | $ | 200 | ​ | $ | 2,897 | ​ | $ | 2,664 | ​ | $ | 204 | ​ | $ | 2,868
​ The changes to landfill and environmental remediation liabilities for the three months ended March 31, 2023 are reflected in the table below (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Environmental
​ |  | Landfill |  | Remediation
December 31, 2022 | ​ | $ | 2,664 | ​ | $ | 204
Obligations incurred and capitalized | ​ |  | 20 |  |  | —
Obligations settled | ​ |  | (22) |  |  | (6)
Interest accretion | ​ |  | 30 |  |  | 2
Revisions in estimates and interest rate assumptions | ​ |  | 5 |  |  | —
Acquisitions, divestitures and other adjustments | ​ |  | — |  |  | —
March 31, 2023 | ​ | $ | 2,697 | ​ | $ | 200
​ 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 12 for additional information related to these trusts.

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