v3.24.3
Landfill and Environmental Remediation Liabilities
9 Months Ended
Sep. 30, 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):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

September 30, 2024

​

December 31, 2023

​

​

​

​

​

Environmental

​

​

​

​

​

​

​

Environmental

​

​

​

​

    

Landfill

    

Remediation

    

Total

    

Landfill

    

Remediation

    

Total

Current (in accrued liabilities)

 

$

141

​

$

27

​

$

168

​

$

143

​

$

31

​

$

174

Long-term

​

 

2,790

​

 

175

​

 

2,965

  

 

2,710

​

 

178

​

 

2,888

​

 

$

2,931

​

$

202

​

$

3,133

​

$

2,853

​

$

209

​

$

3,062

​

​

The changes to landfill and environmental remediation liabilities for the nine months ended September 30, 2024 are reflected in the table below (in millions):

​

​

​

​

​

​

​

​

​

​

​

​

Environmental

​

    

Landfill

    

Remediation

December 31, 2023

​

$

2,853

​

$

209

Obligations incurred and capitalized

​

 

69

  

 

—

Obligations settled

​

 

(98)

  

 

(19)

Interest accretion

​

 

99

  

 

—

Revisions in estimates

​

 

9

  

 

12

Acquisitions, divestitures and other adjustments

​

 

(1)

  

 

—

September 30, 2024

​

$

2,931

​

$

202

​

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 13 for additional information related to these trusts.