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Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) country | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Performance obligations expected to be satisfied, expected timing | We sell product services under long-term product maintenance or extended warranty agreements in our Turbomachinery & Process Solutions and Oilfield Equipment segments. These agreements require us to maintain the customers' assets over the service agreement contract terms, which generally range from 10 to 20 years. |  |
Research and development expenses | $ 492 | $ 595 | $ 687
Restricted cash and cash equivalents held in bank accounts | $ 601 | $ 687 |
Number of countries in which entity operates (more than) | country | 120 |  |
BHH LLC |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Approximate interest | 88.60% |  |
BHH LLC | GE | GE |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Ownership percentage by noncontrolling owners | 11.40% | 30.10% |

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 912 -SubTopic 730 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6472174&loc=d3e58812-109433 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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