Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Intangible Assets Schedule of Carrying Amount of Goodwill by Segment (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Goodwill [Line Items]
Goodwill at December 31, 2015				$ 6,070
Goodwill impairment	$ (17)		$ 0	(1,858)	$ 0
Goodwill at September 30, 2016	4,216			4,216
North America
Goodwill [Line Items]
Goodwill at December 31, 2015				3,097
Goodwill impairment		$ (1,530)		(1,549)
Goodwill, Translation Adjustments				3
Goodwill at September 30, 2016	1,551			1,551
Latin America
Goodwill [Line Items]
Goodwill at December 31, 2015				584
Goodwill impairment				0
Goodwill, Translation Adjustments				3
Goodwill at September 30, 2016	587			587
Europe/Africa/Russia Caspian
Goodwill [Line Items]
Goodwill at December 31, 2015				1,068
Goodwill impairment				0
Goodwill, Translation Adjustments				(1)
Goodwill at September 30, 2016	1,067			1,067
Middle East/Asia Pacific
Goodwill [Line Items]
Goodwill at December 31, 2015				819
Goodwill impairment				0
Goodwill, Translation Adjustments				0
Goodwill at September 30, 2016	819			819
Industrial Services
Goodwill [Line Items]
Goodwill at December 31, 2015				502
Goodwill impairment		(311)		(309)
Goodwill, Translation Adjustments				(1)
Goodwill at September 30, 2016	192			192
Total
Goodwill [Line Items]
Goodwill at December 31, 2015				6,070
Goodwill impairment		$ (1,841)		(1,858)
Goodwill, Translation Adjustments				4
Goodwill at September 30, 2016	$ 4,216			$ 4,216