Landfill and Environmental Remediation Liabilities (Tables)

12 Months Ended

Dec. 31, 2022

Landfill and Environmental Remediation Liabilities

Liabilities for Landfill and Environmental Remediation Costs

Liabilities for landfill and environmental remediation costs as of December 31 are presented in the table below (in millions):


	2022						2021
			Environmental						Environmental
	Landfill		Remediation		Total		Landfill		Remediation		Total
Current (in accrued liabilities)	$	137	$	31	$	168	$	137	$	29	$	166
Long-term		2,527		173		2,700		2,189		184		2,373
	$	2,664	$	204	$	2,868	$	2,326	$	213	$	2,539

Changes to Landfill and Environmental Remediation Liabilities

The changes to landfill and environmental remediation liabilities for the year ended December 31, 2022 are reflected in the table below (in millions):


			Environmental
	Landfill		Remediation
December 31, 2021	$	2,326	$	213
Obligations incurred and capitalized		114		—
Obligations settled		(121)		(28)
Interest accretion		108		4
Revisions in estimates and interest rate assumptions (a)		243		15
Acquisitions, divestitures and other adjustments		(6)		—
December 31, 2022	$	2,664	$	204

(a)	In 2021, the increase in our landfill liabilities for revisions in estimates and interest rate assumptions was $33 million. The increase in our landfill liabilities in 2022 is primarily due to inflationary cost pressures that are expected to impact costs over the remaining landfill lives.