| Cover | Sep. 01, 2023 |
| Document Information [Line Items] | |
| Document Type | 8-K/A |
| Document Period End Date | Sep. 01, 2023 |
| Entity File Number | 001-37591 |
| Entity Tax Identification Number | 46-3639580 |
| Entity Registrant Name | EASTERN ENERGY GAS HOLDINGS, LLC |
| Entity Incorporation, State or Country Code | VA |
| Entity Address, Address Line One | 10700 Energy Way |
| Entity Address, State or Province | VA |
| Entity Address, City or Town | Glen Allen |
| Entity Address, Postal Zip Code | 23060 |
| City Area Code | 804 |
| Local Phone Number | 613-5100 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001603291 |
| Amendment Flag | true |
| Amendment Description | This amendment is being filed to amend Item 9.01 of the Original Filing to provide certain unaudited pro forma financial information of the Company in connection with the Transaction. |
