Landfill and Environmental Remediation Liabilities (Tables)

3 Months Ended

Mar. 31, 2017

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Liabilities for Landfill and Environmental Remediation Costs

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

	March 31, 2017						December 31, 2016
	Landfill		Environmental Remediation		Total		Landfill		Environmental Remediation		Total
Current (in accrued liabilities)	$	133	$	26	$	159	$	119	$	28	$	147
Long-term		1,475		217		1,692		1,457		218		1,675
	$	1,608	$	243	$	1,851	$	1,576	$	246	$	1,822

Changes to Landfill and Environmental Remediation Liabilities

The changes to landfill and environmental remediation liabilities for the three months ended March 31, 2017 are reflected in the table below (in millions):

	Landfill			Environmental Remediation
December 31, 2016	$	1,576		$	246
Obligations incurred and capitalized		15			—
Obligations settled		(14	)		(4	)
Interest accretion		22			1
Revisions in estimates and interest rate assumptions		8			1
Acquisitions, divestitures and other adjustments		1			(1	)
March 31, 2017	$	1,608		$	243