Business Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Information on business segments

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.

Reconciliation of assets from segment to consolidated

	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

Schedule of revenue from external customers and long-lived assets, by geographical areas

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