Goodwill and Intangible Assets - Schedule of Carrying Amount of Goodwill by Segment (Details) $ in Millions	12 Months Ended
Dec. 31, 2015 USD ($)
Changes in carrying amount of goodwill
Balance at December 31, 2014	$ 6,081
Balance at December 31, 2015	6,070
North America
Changes in carrying amount of goodwill
Balance at December 31, 2014	3,102
Acquisitions and other	(5)
Balance at December 31, 2015	3,097
Latin America
Changes in carrying amount of goodwill
Balance at December 31, 2014	587
Acquisitions and other	(3)
Balance at December 31, 2015	584
Europe/Africa/Russia Caspian
Changes in carrying amount of goodwill
Balance at December 31, 2014	1,068
Acquisitions and other	0
Balance at December 31, 2015	1,068
Middle East/Asia Pacific
Changes in carrying amount of goodwill
Balance at December 31, 2014	819
Acquisitions and other	0
Balance at December 31, 2015	819
Industrial Services
Changes in carrying amount of goodwill
Balance at December 31, 2014	505
Acquisitions and other	(3)
Balance at December 31, 2015	502
Total [Member]
Changes in carrying amount of goodwill
Balance at December 31, 2014	6,081
Acquisitions and other	(11)
Balance at December 31, 2015	$ 6,070

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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+ References

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- Definition

Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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