| Cover Page | Aug. 03, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Aug. 3, 2020 |
| Entity Registrant Name | NOBLE ENERGY, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-07964 |
| Entity Tax Identification Number | 73-0785597 |
| Entity Address, Address Line One | 1001 Noble Energy Way |
| Entity Address, City or Town | Houston, |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77070 |
| City Area Code | 281 |
| Local Phone Number | 872-3100 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Trading Symbol | NBL |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Security Exchange Name | NASDAQ |
| Entity Central Index Key | 0000072207 |
| Amendment Flag | false |
