Landfill and Environmental Remediation Liabilities (Tables)

3 Months Ended

Mar. 31, 2014

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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, 2014						December 31, 2013
	Landfill		Environmental Remediation		Total		Landfill		Environmental Remediation		Total
Current (in accrued liabilities)	$	94	$	35	$	129	$	95	$	35	$	130
Long-term		1,343		189		1,532		1,326		192		1,518
	$	1,437	$	224	$	1,661	$	1,421	$	227	$	1,648

Changes to Landfill and Environmental Remediation Liabilities

The changes to landfill and environmental remediation liabilities for the year ended December 31, 2013 and the three months ended March 31, 2014 are reflected in the table below (in millions):

	Landfill			Environmental Remediation
December 31, 2012	$	1,338		$	253
Obligations incurred and capitalized		59			—
Obligations settled		(71	)		(20	)
Interest accretion		87			4
Revisions in estimates and interest rate assumptions		6			(6	)
Acquisitions, divestitures and other adjustments		2			(4	)
December 31, 2013		1,421			227
Obligations incurred and capitalized		12			—
Obligations settled		(8	)		(5	)
Interest accretion		21			1
Revisions in estimates and interest rate assumptions		(7	)		1
Acquisitions, divestitures and other adjustments		(2	)		—
March 31, 2014	$	1,437		$	224