SUPPLEMENTARY INFORMATION (Notes)

12 Months Ended

Dec. 31, 2019

Notes To Financial Statements [Abstract]

perating Expense, net

Insurance Recoveries

Fairfax County Energy-from-Waste Facility

In February 2017, our Fairfax County energy-from-waste facility experienced a fire in the front-end receiving portion of the facility. During the first quarter of 2017, we completed our evaluation of the impact of this event and recorded an immaterial asset impairment, which we have since recovered from insurance proceeds. The facility resumed operations in December 2017.

Plymouth Energy-from-Waste Facility

In May 2016, our Plymouth energy-from-waste facility experienced a turbine generator failure. Damage to the turbine generator was extensive and operations at the facility were suspended promptly to assess the cause and extent of damage. The facility is capable of processing waste without utilizing the turbine generator to generate electricity, and we resumed waste processing operations in early June of 2016. The facility resumed generating electricity early in the first quarter of 2017 after the generator and other damaged equipment were replaced.

The cost of repair or replacement of assets and business interruption losses for the above matters were insured under the terms of applicable insurance policies, subject to deductibles.

We recorded insurance gains, as a reduction to Other operating expense, net in our consolidated statement of operations as follows (in millions):



	Year Ended December 31,
	2019		2018		2017
Insurance gains for property and clean-up costs, net of impairment charges	$	—	$	18	$	7
Insurance gains for business interruption costs, net of costs incurred	$	2	$	19	$	23

Hennepin County Legal Settlement

On September 25, 2017, we settled a dispute with Hennepin County, Minnesota regarding extension provisions in our service contract to operate the Hennepin Energy Recovery Center. In 2017, we received $8 million in connection with the settlement. During the year ended December 31, 2017, we recorded a gain on settlement of $8 million as a reduction of Other operating expense, net in our consolidated statement of operations.

Impairment Charges

Impairment charges are as follows (in millions):



	Year Ended December 31,
	2019		2018		2017
Impairment charges	$	2	$	86	$	2

During the year ended December 31, 2018, we identified an indicator of impairment associated with certain of our EfW facilities where the current expectation is that, more likely than not, the assets will not be operated through their previously estimated economic useful life. We performed recoverability tests to determine if these facilities were impaired as of the respective balance sheet date. As a result, based on expected cash flows utilizing Level 3 inputs, we recorded a non-cash impairment charge for the year ended December 31, 2018 of $86 million, to reduce the carrying value of the assets to their estimated fair value.

For more information regarding fair value measurements, see Note 12. Financial Instruments.

Selected Supplementary Balance Sheet Information

Selected supplementary balance sheet information is as follows (in millions):



	As of December 31,
	2019		2018
Prepaid expenses	$	27	$	22
Other receivable	22		—
Spare parts	20		21
Other	36		21
Total prepaid expenses and other current assets⁽¹⁾	$	105	$	64

Operating expenses, payroll and related expenses	$	139	$	150
Deferred revenue	12		10
Accrued liabilities to client communities	16		26
Interest payable	27		38
Dividends payable	38		36
Insurance premium financing	24		20
Other	36		53
Total accrued expenses and other current liabilities	$	292	$	333


⁽¹⁾	Includes assets held for sale previously disclosed separately on the consolidated balance sheet.

Geographic Information

Our operations are principally located in the United States. A summary of our operating revenue and total assets by geographic area is as follows (in millions):



	United States		Other		Total
Operating Revenue:
Year Ended December 31, 2019	$	1,800	$	70	$	1,870
Year Ended December 31, 2018	$	1,785	$	83	$	1,868
Year Ended December 31, 2017	$	1,705	$	47	$	1,752

	United States		Other		Total
Total Assets:
As of December 31, 2019	$	3,466	$	249	$	3,715
As of December 31, 2018	$	3,635	$	208	$	3,843
As of December 31, 2017	$	3,727	$	714	$	4,441