| Cover | Jul. 29, 2021 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 29, 2021 |
| Entity File Number | 1-38143 |
| Entity Registrant Name | BAKER HUGHES COMPANY |
| Entity Central Index Key | 0001701605 |
| Entity Tax Identification Number | 81-4403168 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 17021 Aldine Westfield Road |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77073 |
| City Area Code | 713 |
| Local Phone Number | 439-8600 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | BKR |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Baker Hughes Holdings Llc [Member] | |
| Entity Information [Line Items] | |
| Entity File Number | 1-09397 |
| Entity Registrant Name | BAKER HUGHES HOLDINGS LLC |
| Entity Central Index Key | 0000808362 |
| Entity Tax Identification Number | 76-0207995 |
| Entity Incorporation, State or Country Code | DE |
| Title of 12(b) Security | 5.125% Senior Notes due 2040 |
| No Trading Symbol Flag | true |
| Security Exchange Name | NYSE |
