Business Segment and Geographic Information

We operate under two divisions, which form the basis for the two operating segments we report: the Completion and Production segment and the Drilling and Evaluation segment. For more information about the product service lines included in each segment, see Part I, Item 1, "Business.” Corporate and other includes certain expenses not attributable to a particular business segment such as costs related to support functions and corporate executives. Other items include amortization expense associated with intangible assets recorded as a result of our acquisitions in 2017 and merger-related costs in 2016 and 2015. The balance sheet for Corporate is primarily composed of cash and equivalents, deferred tax assets and investment securities. Intersegment revenue and revenue between geographic areas are immaterial. Our equity in earnings and losses of unconsolidated affiliates that are accounted for using the equity method of accounting are included within cost of services and cost of sales on our statements of operations, which is part of operating income of the applicable segment.

The following tables present financial information on our business segments.



Operations by business segment
	Year Ended December 31
Millions of dollars	2017			2016			2015
Revenue:
Completion and Production	$	13,077		$	8,882		$	13,682
Drilling and Evaluation	7,543			7,005			9,951
Total revenue	$	20,620		$	15,887		$	23,633

Operating income (loss):
Completion and Production	$	1,621		$	107		$	1,069
Drilling and Evaluation	718			794			1,519
Total operations	2,339			901			2,588
Corporate and other (a)	(330		)	(4,322		)	(576		)
Impairments and other charges (b)	(647		)	(3,357		)	(2,177		)
Total operating income (loss)	$	1,362		$	(6,778	)	$	(165	)
Interest expense, net of interest income	$	(593	)	$	(639	)	$	(447	)
Other, net	(87		)	(208		)	(324		)
Income (loss) from continuing operations before income taxes	$	682		$	(7,625	)	$	(936	)
Capital expenditures:
Completion and Production	$	1,111		$	500		$	1,526
Drilling and Evaluation	261			297			650
Corporate and other	1			1			8
Total	$	1,373		$	798		$	2,184
Depreciation, depletion and amortization:
Completion and Production	$	953		$	900		$	1,160
Drilling and Evaluation	563			569			638
Corporate and other	40			34			37
Total	$	1,556		$	1,503		$	1,835

(a) Includes merger-related costs for the periods presented, including a $3.5 billion termination fee and an aggregate $464 million of charges for the reversal of assets held for sale accounting during the year ended December 31, 2016.

(b) Impairments and other charges are as follows:

-For the year ended December 31, 2017, the aggregate charge of $647 million represents a fair market value adjustment on our existing promissory note with our primary customer in Venezuela and a full reserve against our other accounts receivable with this customer.

-For the year ended December 31, 2016, includes $2.1 billion attributable to Completion and Production, $1.2 billion attributable to Drilling and Evaluation and $10 million attributable to Corporate and other.

-For the year ended December 31, 2015, includes $1.1 billion attributable to Completion and Production, $1.0 billion attributable to Drilling and Evaluation and $88 million attributable to Corporate and other.



	December 31
Millions of dollars	2017		2016
Total assets:
Completion and Production	$	12,276	$	10,349
Drilling and Evaluation	7,837		8,473
Shared assets	2,913		3,371
Corporate and other	2,059		4,807
Total	$	25,085	$	27,000

Not all assets are associated with specific segments. Those assets specific to segments include receivables, inventories, certain identified property, plant and equipment (including field service equipment), equity in and advances to related companies and goodwill. The remaining assets, such as cash and equivalents, are considered to be shared among the segments.

The following tables present information by geographic area. In 2017, 2016 and 2015, based on the location of services provided and products sold, 53%, 41% and 44% of our consolidated revenue was from the United States. As of December 31, 2017 and December 31, 2016, 56% and 50% of our property, plant and equipment was located in the United States. No other country accounted for more than 10% of our revenue or property, plant and equipment during the periods presented.



Operations by geographic region
	Year Ended December 31
Millions of dollars	2017		2016		2015
Revenue:
North America	$	11,564	$	6,770	$	10,856
Latin America	2,116		1,860		3,149
Europe/Africa/CIS	2,781		2,993		4,175
Middle East/Asia	4,159		4,264		5,453
Total	$	20,620	$	15,887	$	23,633



	December 31
Millions of dollars	2017		2016
Net property, plant and equipment:
North America	$	4,922	$	4,431
Latin America	945		1,068
Europe/Africa/CIS	1,098		1,253
Middle East/Asia	1,556		1,780
Total	$	8,521	$	8,532