FINANCIAL INFORMATION BY BUSINESS SEGMENTS (Notes)

12 Months Ended

Dec. 31, 2017

Notes To Financial Statements [Abstract]

FINANCIAL INFORMATION BY BUSINESS SEGMENTS

FINANCIAL INFORMATION BY BUSINESS SEGMENTS

We have one reportable segment, North America, which is comprised of waste and energy services operations located primarily in the United States and Canada. The results of our reportable segment are as follows (in millions):

	North America		All Other  (1)			Total
Year Ended December 31, 2017
Operating revenue	$	1,721	$	31		$	1,752
Depreciation and amortization expense	$	209	$	6		$	215
Impairment charges	$	2	$	—		$	2
Operating income	$	95	$	6		$	101
Equity in net income from unconsolidated investments	$	1	$	—		$	1
As of December 31, 2017
Total assets	$	3,753	$	688		$	4,441
Capital additions	$	155	$	122		$	277
Year Ended December 31, 2016
Operating revenue	$	1,692	$	7		$	1,699
Depreciation and amortization expense	$	207	$	—		$	207
Impairment charges	$	20	$	—		$	20
Operating income (loss)	$	116	$	(7	)	$	109
Equity in net income from unconsolidated investments	$	1	$	3		$	4
As of December 31, 2016
Total assets	$	3,794	$	490		$	4,284
Capital additions	$	188	$	171		$	359
Year Ended December 31, 2015
Operating revenue	$	1,607	$	38		$	1,645
Depreciation and amortization expense	$	197	$	1		$	198
Impairment charges	$	43	$	—		$	43
Operating income	$	108	$	1		$	109
Equity in net income from unconsolidated investments	$	—	$	13		$	13

(1) All other includes the financial results of our international assets.

Our operations are principally located in the United States. See the list of projects for the North America segment in Item 1. Business. A summary of operating revenue and total assets by geographic area is as follows (in millions):

	United States		Other		Total
Operating Revenue:
Year Ended December 31, 2017	$	1,705	$	47	$	1,752
Year Ended December 31, 2016	$	1,677	$	22	$	1,699
Year Ended December 31, 2015	$	1,589	$	56	$	1,645

	United States		Assets Held for Sale		Other		Total
Total Assets:
Year Ended December 31, 2017	$	3,727	$	653	$	61	$	4,441
Year Ended December 31, 2016	$	3,763	$	—	$	521	$	4,284
Year Ended December 31, 2015	$	3,847	$	97	$	290	$	4,234