4. Landfill and Environmental Remediation Liabilities

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


	December 31, 2015						December 31, 2014
	Landfill		Environmental Remediation		Total		Landfill		Environmental Remediation		Total
Current (in accrued liabilities)	$	112	$	31	$	143	$	104	$	43	$	147
Long-term		1,406		178		1,584		1,339		192		1,531

	$	1,518	$	209	$	1,727	$	1,443	$	235	$	1,678

The changes to landfill and environmental remediation liabilities for the years ended December 31, 2014 and 2015 are reflected in the table below (in millions):


	Landfill			Environmental Remediation
December 31, 2013	$	1,421		$	227
Obligations incurred and capitalized		54			—
Obligations settled		(69	)		(21	)
Interest accretion		88			5
Revisions in estimates and interest rate assumptions(a)(b)		(9	)		25
Acquisitions, divestitures and other adjustments(c)		(42	)		(1	)

December 31, 2014	$	1,443		$	235
Obligations incurred and capitalized		61			—
Obligations settled		(71	)		(30	)
Interest accretion		89			3
Revisions in estimates and interest rate assumptions(a)(b)		(11	)		5
Acquisitions, divestitures and other adjustments(c)		7			(4	)

December 31, 2015	$	1,518		$	209

(a)	The amounts reported for our landfill liabilities include an increase of approximately $2 million for 2014 and a decrease of approximately $18 million for 2015, related to our year-end annual review of landfill final capping, closure and post-closure obligations.

(b)

The amount reported in 2014 for environmental remediation liabilities includes the impact of a decrease in the risk-free discount rate used to measure our liabilities from 3.0% at December 31, 2013 to 2.0% at December 31, 2014, resulting in an increase of $13 million to our environmental remediation liabilities and a corresponding increase to “Operating” expenses.

The amount reported in 2015 for our environmental remediation liabilities includes the impact of an increase in the risk-free discount rate used to measure our liabilities from 2.0% at December 31, 2014 to 2.25% at December 31, 2015, resulting in a decrease of $3 million to our environmental remediation liabilities and a corresponding decrease to “Operating” expenses.

(c)	The amounts reported for our 2014 landfill liabilities include reductions of approximately $25 million for divestitures, including the divestiture of our Wheelabrator business.

The amounts reported for our 2015 landfill liabilities include an increase of approximately $18 million associated with the acquisition of Deffenbaugh Disposal, Inc. (“Deffenbaugh”).

Our recorded liabilities as of December 31, 2015 include the impacts of inflating certain of these costs based on our expectations for the timing of cash settlement and of discounting certain of these costs to present value. Anticipated payments of currently identified environmental remediation liabilities as measured in current dollars are $32 million in 2016, $26 million in 2017, $30 million in 2018, $19 million in 2019, $11 million in 2020 and $89 million thereafter.

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 Notes 18 and 20 for additional information related to these trusts.