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Landfill and Environmental Remediation Liabilities
3 Months Ended
Mar. 31, 2021
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, 2021

December 31, 2020

Environmental

Environmental

    

Landfill

    

Remediation

    

Total

    

Landfill

    

Remediation

    

Total

Current (in accrued liabilities)

 

$

130

$

25

$

155

$

138

$

26

$

164

Long-term

 

2,069

 

193

 

2,262

  

 

2,018

 

204

 

2,222

 

$

2,199

$

218

$

2,417

$

2,156

$

230

$

2,386

The changes to landfill and environmental remediation liabilities for the three months ended March 31, 2021 are reflected in the table below (in millions):

Environmental

    

Landfill

    

Remediation

December 31, 2020

$

2,156

$

230

Obligations incurred and capitalized

 

26

  

 

Obligations settled

 

(16)

  

 

(5)

Interest accretion

 

26

  

 

Revisions in estimates and interest rate assumptions

 

7

  

 

(7)

Acquisitions, divestitures and other adjustments

 

  

 

March 31, 2021

$

2,199

$

218

At several of our landfills, we provide financial assurance by depositing cash into restricted trust funds or escrow accounts 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.