Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Revenue:
Services		$ 3,151	$ 2,985
Product sales		1,128	1,213
Total revenue		4,279	4,198
Operating costs and expenses:
Cost of services		3,103	2,956
Cost of sales		918	969
General and administrative		55	48
Impairments and other charges		0	2,766
Merger-related costs		0	538
Total operating costs and expenses		4,076	7,277
Operating income (loss)		203	(3,079)
Interest expense, net of interest income	[1]	(242)	(165)
Other, net		(18)	(47)
Income (loss) from continuing operations before income taxes		(57)	(3,291)
Income tax benefit (provision)		25	875
Income (loss) from continuing operations		(32)	(2,416)
Income (loss) from discontinued operations, net		0	(2)
Net income (loss)		(32)	(2,418)
Net (income) loss attributable to noncontrolling interest		0	6
Net income (loss) attributable to company		(32)	(2,412)
Amounts attributable to company shareholders:
Income (loss) from continuing operations		(32)	(2,410)
Income (loss) from discontinued operations, net		0	(2)
Net income (loss) attributable to company		$ (32)	$ (2,412)
Basic and diluted net income (loss) per share attributable to company		$ (0.04)	$ (2.81)
Basic and diluted weighted average common shares outstanding		867	858
Cash dividends per share		$ 0.18	$ 0.18

[1] Includes $104 million of costs related to the early extinguishment of $1.4 billion of senior notes in the three months ended March 31, 2017.