2.	Landfill and Environmental Remediation Liabilities

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


	March 31, 2016						December 31, 2015
	Landfill		Environmental Remediation		Total		Landfill		Environmental Remediation		Total
Current (in accrued liabilities)	$	110	$	32	$	142	$	112	$	31	$	143
Long-term		1,431		175		1,606		1,406		178		1,584

	$	1,541	$	207	$	1,748	$	1,518	$	209	$	1,727

The changes to landfill and environmental remediation liabilities for the three months ended March 31, 2016 are reflected in the table below (in millions):


	Landfill			Environmental Remediation
December 31, 2015	$	1,518		$	209
Obligations incurred and capitalized		13			—
Obligations settled		(15	)		(5	)
Interest accretion		22			1
Revisions in estimates and interest rate assumptions		(1	)		2
Acquisitions, divestitures and other adjustments		4			—

March 31, 2016	$	1,541		$	207

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 14 for additional information related to these trusts.