Summary of Significant Accounting Policies	12 Months Ended
Dec. 31, 2025
EBP Represented Employee
EBP, Accounting Policy [Line Items]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies (a)Basis of Accounting The accompanying financial statements are prepared on the accrual basis of accounting. (b)Investment Valuation and Income Recognition The Plan’s investments other than fully benefit-responsive investment contracts (referred to herein as guaranteed investment contracts or GICs) are reported at fair value. Fair value is the price that would be received by the Plan for an asset or paid by the Plan to transfer a liability (an exit price) in an orderly transaction between market participants on the measurement date in the Plan’s principal or most advantageous market for the asset or liability. Contract value is the relevant measure for the Plan’s GICs because contract value is the amount Plan participants generally receive when executing transactions under the terms of the contract and Plan provisions. Purchases and sales of investments are recorded on the trade date. Participation in net income of the Master Trust and investment income (loss) consists of dividend income, interest income, and net appreciation (depreciation) in the fair value of investments. Dividends are recognized on the ex‑dividend date, the date on which an entity or an individual must own the stock to receive the pending dividend. Interest income is recorded on an accrual basis. Net appreciation (depreciation) includes the gains and losses on investments bought and sold as well as held during the year. (c)Investment Concentrations Through its investment in the Master Trust, the Plan holds shares of General Dynamics Corporation Common Stock representing approximately 37% and 36% of its investments as of December 31, 2025 and 2024, respectively. (d)Payment of Benefits Benefits are recorded when paid. (e)Use of Estimates The preparation of financial statements in accordance with U.S. generally accepted accounting principles (U.S. GAAP) requires Plan management to make estimates and assumptions that affect the reported amounts of assets and liabilities and changes therein. Actual results could differ from those estimates. (f)Administrative Expenses The Master Trust generally pays the administrative expenses of the Plan. The Plan Document provides that the Company may reimburse the Plan for administrative expenses. Administrative expenses reimbursed by the Company were not material for the year ended December 31, 2025. Company employees perform certain administrative functions that are not reimbursed by the Master Trust. The Plan Document provides that the Company is entitled to reimbursement for these and certain other costs incurred on behalf of the Plan. The Company did not seek nor receive reimbursement for any costs in 2025. Administrative expenses included in the Statement of Changes in Net Assets Available for Benefits are expenses that have been specifically identified as expenses of this Plan. Fees related to the administration of notes receivable from participants are charged directly to the participant’s account and are included in administrative expenses.

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2025

Summary of Significant Accounting Policies

(a)Basis of Accounting

The accompanying financial statements are prepared on the accrual basis of accounting.

(b)Investment Valuation and Income Recognition

The Plan’s investments other than fully benefit-responsive investment contracts (referred to herein as guaranteed investment contracts or GICs) are reported at fair value. Fair value is the price that would be received by the Plan for an asset or paid by the Plan to transfer a liability (an exit price) in an orderly transaction between market participants on the measurement date in the Plan’s principal or most advantageous market for the asset or liability. Contract value is the relevant measure for the Plan’s GICs because contract value is the amount Plan participants generally receive when executing transactions under the terms of the contract and Plan provisions.

Purchases and sales of investments are recorded on the trade date. Participation in net income of the Master Trust and investment income (loss) consists of dividend income, interest income, and net appreciation (depreciation) in the fair value of investments. Dividends are recognized on the ex‑dividend date, the date on which an entity or an individual must own the stock to receive the pending dividend. Interest income is recorded on an accrual basis. Net appreciation (depreciation) includes the gains and losses on investments bought and sold as well as held during the year.

(c)Investment Concentrations

Through its investment in the Master Trust, the Plan holds shares of General Dynamics Corporation Common Stock representing approximately 37% and 36% of its investments as of December 31, 2025 and 2024, respectively.

(d)Payment of Benefits

Benefits are recorded when paid.

(e)Use of Estimates

The preparation of financial statements in accordance with U.S. generally accepted accounting principles (U.S. GAAP) requires Plan management to make estimates and assumptions that affect the reported amounts of assets and liabilities and changes therein. Actual results could differ from those estimates.

(f)Administrative Expenses

The Master Trust generally pays the administrative expenses of the Plan. The Plan Document provides that the Company may reimburse the Plan for administrative expenses. Administrative expenses reimbursed by the Company were not material for the year ended December 31, 2025.

Company employees perform certain administrative functions that are not reimbursed by the Master Trust. The Plan Document provides that the Company is entitled to reimbursement for these and certain other costs incurred on behalf of the Plan. The Company did not seek nor receive reimbursement for any costs in 2025.

Administrative expenses included in the Statement of Changes in Net Assets Available for Benefits are expenses that have been specifically identified as expenses of this Plan. Fees related to the administration of notes receivable from participants are charged directly to the participant’s account and are included in administrative expenses.