Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (16,098)	$ 71
Less: Net income (loss) attributable to noncontrolling interests	(5,888)	39
Net income (loss) attributable to Baker Hughes Company	(10,210)	32
Other comprehensive income (loss):
Investment securities	(2)	2
Foreign currency translation adjustments	(277)	166
Cash flow hedges	(8)	4
Benefit plans	22	0
Other comprehensive income (loss)	(265)	172
Less: Other comprehensive income (loss) attributable to noncontrolling interests	(97)	87
Other comprehensive income (loss) attributable to Baker Hughes Company	(168)	85
Comprehensive income (loss)	(16,363)	243
Less: Comprehensive income (loss) attributable to noncontrolling interests	(5,985)	126
Comprehensive income (loss) attributable to Baker Hughes Company	$ (10,378)	$ 117

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e557-108580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580