Goodwill, Acquisitions and Purchase Accounting Adjustments

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 350
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- Definition

Amount before 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
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- Definition

Amount of accumulated impairment loss for 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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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-Paragraph 1
-Subparagraph (h)
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-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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- References

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Balance at December 31, 2016, gross				$ 10,434
Accumulated impairment at December 31, 2016				(3,754)
Goodwill [Roll Forward]
Goodwill, net, beginning balance		$ 19,927	$ 6,680
Acquisitions and purchase accounting adjustments		980	13,052
Currency exchange and others		(190)	195
Goodwill, net, ending balance		20,717	19,927
GE Transaction Agreement
Goodwill [Roll Forward]
Goodwill, acquired	$ 13,963
Oilfield Services
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Balance at December 31, 2016, gross				2,779
Accumulated impairment at December 31, 2016				(2,633)
Goodwill [Roll Forward]
Goodwill, net, beginning balance		13,205	146
Acquisitions and purchase accounting adjustments		(136)	13,052
Currency exchange and others		(26)	7
Goodwill, net, ending balance		13,043	13,205
Oilfield Services \| GE Transaction Agreement
Goodwill [Roll Forward]
Goodwill, acquired	$ 12,898
Oilfield Equipment
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Balance at December 31, 2016, gross				3,852
Accumulated impairment at December 31, 2016				(867)
Goodwill [Roll Forward]
Goodwill, net, beginning balance		3,034	2,985
Acquisitions and purchase accounting adjustments		293	0
Currency exchange and others		(17)	49
Goodwill, net, ending balance		3,310	3,034
Turbo-machinery & Process Solutions
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Balance at December 31, 2016, gross				1,814
Accumulated impairment at December 31, 2016				0
Goodwill [Roll Forward]
Goodwill, net, beginning balance		1,906	1,814
Acquisitions and purchase accounting adjustments		394	0
Currency exchange and others		(114)	92
Goodwill, net, ending balance		2,186	1,906
Digital Solutions
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Balance at December 31, 2016, gross				1,989
Accumulated impairment at December 31, 2016				$ (254)
Goodwill [Roll Forward]
Goodwill, net, beginning balance		1,782	1,735
Acquisitions and purchase accounting adjustments		429	0
Currency exchange and others		(33)	47
Goodwill, net, ending balance		$ 2,178	$ 1,782