v3.25.0.1
Landfill and Environmental Costs (Tables)
12 Months Ended
Dec. 31, 2024
Environmental Remediation Obligations [Abstract]  
Schedule of landfill assets retirement obligations and environmental liabilities
A summary of our accrued landfill asset retirement obligations and environmental liabilities as of December 31 follows:
20242023
Landfill final capping, closure and post-closure liabilities$2,144 $1,937 
Environmental remediation447 485 
Total accrued landfill and environmental costs2,591 2,422 
Less: current portion(159)(141)
Long-term portion$2,432 $2,281 
Schedule of activity in asset retirement obligation liabilities, which includes liabilities for final capping, closure and post-closure
The following table summarizes the activity in our asset retirement obligations, which includes liabilities for final capping, closure and post-closure, for the years ended December 31:
202420232022
Asset retirement obligations, beginning of year$1,937 $1,786 $1,507 
Non-cash additions61 61 60 
Acquisitions, net of divestitures and other adjustments4 12 175 
Asset retirement obligation adjustments91 41 20 
Payments(56)(61)(65)
Accretion expense107 98 89 
Asset retirement obligations, end of year2,144 1,937 1,786 
Less: Current portion(96)(72)(75)
Long-term portion$2,048 $1,865 $1,711 
Schedule of expected future payments for final capping, closure, and post-closure
The expected future payments for final capping, closure and post-closure as of December 31, 2024 follows: 
2025$96 
2026108 
2027102 
202897 
2029112 
Thereafter7,758 
$8,273 
Schedule of activity in environmental remediation liabilities
The following table summarizes the activity in our environmental remediation liabilities for the years ended December 31:
202420232022
Environmental remediation liabilities, beginning of year$485 $487 $455 
Net additions charged to expense7 2 3 
Payments(62)(55)(55)
Accretion expense (non-cash interest expense)17 18 17 
Acquisitions, net of divestitures and other adjustments— 33 67 
Environmental remediation liabilities, end of year447 485 487 
Less: current portion(63)(69)(57)
Long-term portion$384 $416 $430 
Schedule of expected undiscounted future payments for remediation costs
The expected undiscounted future payments for remediation costs as of December 31, 2024 follows:
2025$63 
202659 
202746 
202846 
202928 
Thereafter256 
$498