| Submission | Aug. 14, 2024 |
| Submission [Line Items] | |
| Central Index Key | 0001004315 |
| Registrant Name | National Grid plc |
| Form Type | F-3 |
| Submission Type | F-3ASR |
| Fee Exhibit Type | EX-FILING FEES |
| Offerings - Offering: 1 | Aug. 14, 2024 |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Debt |
| Security Class Title | Debt Securities |
| Offering Note | (1) An unspecified aggregate initial offering price or number of debt securities is being registered as may from time to time be offered at indeterminate prices. (2) An indeterminate aggregate initial offering price or number of debt securities is being registered as may from time to time be offered at indeterminate prices. Separate consideration may or may not be received for securities that are issuable on exercise, conversion or exchange of other securities or that are issued in units or represented by depositary shares. In accordance with Rules 456(b) and 457(r), the Registrant is deferring payment of all of the registration fee. |
| Fees Summary | Aug. 14, 2024 USD ($) |
| Fees Summary [Line Items] | |
| Total Offering | $ 0 |
| Total Fee Amount | $ 0 |
