THIRD PARTY BORROWINGS (Details) - EBP, NGSP - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| EBP, Debt [Line Items] | ||
| Plan interest in Northrop Grumman Defined Contribution Plans Master Trust (Note 3) | $ 499,692 | $ 485,181 |
| Synthetic guaranteed investment contracts | ||
| EBP, Debt [Line Items] | ||
| Underlying securities of synthetic guaranteed investment contracts | $ 195,889 | 679,519 |
| U.S. Securities | ||
| EBP, Debt [Line Items] | ||
| Initial collateral | 102.00% | |
| Foreign | ||
| EBP, Debt [Line Items] | ||
| Initial collateral | 105.00% | |
| EBP, Cash Collateral | ||
| EBP, Debt [Line Items] | ||
| Plan interest in Northrop Grumman Defined Contribution Plans Master Trust (Note 3) | $ 167,000 | 603,000 |
| EBP, Non-Cash Collateral | ||
| EBP, Debt [Line Items] | ||
| Plan interest in Northrop Grumman Defined Contribution Plans Master Trust (Note 3) | $ 33,000 | $ 91,000 |