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The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") and vest ratably in three equal installments\nupon each of the first, second and third anniversaries of the grant date."},{"field":"shares","element":"transactionShares","label":"F2","text":"The amount acquired represents dividend equivalent rights on the RSRs, which are credited following payment of the Company's quarterly cash dividend. Pursuant to the LTISP, the number of\ndividend equivalent rights acquired is calculated by dividing the aggregate amount of the dividend paid on the total number of RSRs held by the reporting person by the closing price of a share of\nCompany common stock on the dividend payment date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation\nCommittee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") and vest ratably in three equal installments\nupon each of the first, second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation\nCommittee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") and vest ratably in three equal installments\nupon each of the first, second and third anniversaries of the grant date."}],"balance_after":18729.884,"derivative":{"underlying":"Common Stock","underlying_shares":91.96},"source":{"system":"sec-edgar","filing":"0001569904-26-000017","document":"wk-form4_1789416737.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1569904/000156990426000017/wk-form4_1789416737.xml","form_type":"4"}},{"id":690443,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Common Stock","published_at":"2026-08-11T20:25:12.000Z","date":"2026-08-10","kind":"sale","planned":true,"acquired":false,"shares":13070,"price":324.92,"value":4246704.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 12, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average sale price of $324.92 rounded to the nearest hundredth. The highest price at which the shares were sold was $325.11 and the lowest price at which the shares were sold was $324.83. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote in this Form 4."}],"balance_after":11223.951,"source":{"system":"sec-edgar","filing":"0001569904-26-000014","document":"wk-form4_1786479909.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990426000014/wk-form4_1786479909.xml","form_type":"4"}},{"id":737510,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Restricted Stock  Rights","published_at":"2026-06-15T20:20:46.000Z","date":"2026-06-12","kind":"grant","planned":false,"acquired":true,"shares":86.003,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. 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Pursuant to the LTISP, the number of\ndividend equivalent rights acquired is calculated by dividing the aggregate amount of the dividend paid on the total number of RSRs held by the reporting person by the closing price of a share of\nCompany common stock on the dividend payment date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. 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The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\")."},{"field":"shares","element":"transactionShares","label":"F2","text":"The amount acquired represents dividend equivalent rights on the RSRs, which are credited following payment of the Company's quarterly cash dividend.  Pursuant to the LTISP, the number of dividend equivalent rights acquired is calculated by dividing the aggregate amount of the dividend paid on the total number of RSRs held by the reporting person by the closing price of a share of Company common stock on the dividend payment date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\")."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. 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The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock.  The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock.  The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") on 2/26/24 and vest ratably in three equal installments upon each of the first, second and third anniversaries of the grant date."}],"balance_after":18490.539,"derivative":{"underlying":"Common Stock","underlying_shares":2344.001},"source":{"system":"sec-edgar","filing":"0001569904-26-000006","document":"wk-form4_1772486184.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990426000006/wk-form4_1772486184.xml","form_type":"4"}},{"id":873648,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Common Stock","published_at":"2026-03-02T21:16:29.000Z","date":"2026-02-26","kind":"tax_withholding","planned":false,"acquired":false,"shares":1057.145,"price":443,"value":468315.235,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares withheld by issuer for the payment of withholding taxes on restricted stock rights (\"RSRs\") that vested on 2/26/26."}],"balance_after":24293.951,"source":{"system":"sec-edgar","filing":"0001569904-26-000006","document":"wk-form4_1772486184.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990426000006/wk-form4_1772486184.xml","form_type":"4"}},{"id":873647,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Common Stock","published_at":"2026-03-02T21:16:29.000Z","date":"2026-02-26","kind":"exercise","planned":false,"acquired":true,"shares":2344.001,"price":443,"value":1038392.443,"ownership":{"direct":true},"balance_after":25351.096,"source":{"system":"sec-edgar","filing":"0001569904-26-000006","document":"wk-form4_1772486184.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990426000006/wk-form4_1772486184.xml","form_type":"4"}},{"id":876763,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Restricted Stock  Rights","published_at":"2026-02-27T21:19:25.000Z","date":"2026-02-25","kind":"grant","planned":false,"acquired":true,"shares":5854,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock.  The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") on 2/25/26 and vest ratably in three equal installments upon each of the first, second, and third anniversaries of the grant date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock.  The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") on 2/25/26 and vest ratably in three equal installments upon each of the first, second, and third anniversaries of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock.  The RSRs were granted under the 2022 Long-Term Incentive Stock Plan (\"LTISP\") on 2/25/26 and vest ratably in three equal installments upon each of the first, second, and third anniversaries of the grant date."}],"balance_after":20834.54,"derivative":{"underlying":"Common Stock","underlying_shares":5854},"source":{"system":"sec-edgar","filing":"0001569904-26-000004","document":"wk-form4_1772227162.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990426000004/wk-form4_1772227162.xml","form_type":"4"}},{"id":876762,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Common Stock","published_at":"2026-02-27T21:19:25.000Z","date":"2026-02-25","kind":"tax_withholding","planned":false,"acquired":false,"shares":14719.738,"price":435.58,"value":6411623.47804,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares withheld by issuer for payment of withholding taxes on RPSRs."}],"balance_after":23007.095,"source":{"system":"sec-edgar","filing":"0001569904-26-000004","document":"wk-form4_1772227162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990426000004/wk-form4_1772227162.xml","form_type":"4"}},{"id":876761,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Common Stock","published_at":"2026-02-27T21:19:25.000Z","date":"2026-02-25","kind":"grant","planned":false,"acquired":true,"shares":32638,"price":435.58,"value":14216460.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares issued upon settlement of restricted performance stock rights (\"RPSRs\") for the performance period that ended on 12/31/2025."}],"balance_after":37726.833,"source":{"system":"sec-edgar","filing":"0001569904-26-000004","document":"wk-form4_1772227162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990426000004/wk-form4_1772227162.xml","form_type":"4"}},{"id":881547,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Restricted Stock  Rights","published_at":"2026-02-25T22:28:29.000Z","date":"2026-02-24","kind":"exercise","planned":false,"acquired":false,"shares":5145.748,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each RSR represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock.  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As of November 21, 2025, the reporting person owned 2,263.818 shares of common stock and, following the reported transaction, 67,479.087 shares in the reporting person's family trust."}],"balance_after":67479.087,"source":{"system":"sec-edgar","filing":"0001569904-25-000015","document":"wk-form4a_1764885087.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990425000015/wk-form4a_1764885087.xml","form_type":"4/A","original_submission_date":"2025-11-24"}},{"id":989721,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Common Stock","published_at":"2025-11-24T21:50:57.000Z","date":"2025-11-21","kind":"other","planned":false,"acquired":true,"shares":660,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Held in the Kastner Family Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Transfer of shares to family trust."}],"balance_after":68799.087,"source":{"system":"sec-edgar","filing":"0001569904-25-000012","document":"wk-form4_1764021054.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990425000012/wk-form4_1764021054.xml","form_type":"4"}},{"id":989720,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Common Stock","published_at":"2025-11-24T21:50:57.000Z","date":"2025-11-21","kind":"other","planned":false,"acquired":false,"shares":660,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Transfer of shares to family trust."}],"balance_after":1603.818,"source":{"system":"sec-edgar","filing":"0001569904-25-000012","document":"wk-form4_1764021054.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1501585/000156990425000012/wk-form4_1764021054.xml","form_type":"4"}},{"id":999942,"issuer":{"id":3476,"kind":"organization","name":"HUNTINGTON INGALLS INDUSTRIES, INC.","symbol":"HII"},"owners":[{"id":24513,"kind":"person","name":"Kastner Christopher D","position":1,"cik":"0001569904","reported_name":"Kastner Christopher D","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Director, President & CEO"}}],"security":"Common Stock","published_at":"2025-11-13T21:34:19.000Z","date":"2025-11-12","kind":"sale","planned":true,"acquired":false,"shares":15000,"price":321.06,"value":4815900.0,"ownership":{"direct":false,"nature":"Held in the Kastner Family Trust"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 14, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average sale price of $321.06 rounded to the nearest hundredth. 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Pursuant to the LTISP, the number of dividend equivalent rights acquired is calculated by dividing the aggregate amount of the dividend paid on the total number of RSRs held by the Reporting Person by the closing price of a share of Company common stock on the dividend payment date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each Restricted Stock Right (\"RSR\") represents a contingent right to receive an equivalent number of shares of Company common stock, or, at the discretion of the Company's Compensation Committee, cash or a combination of cash and Company common stock. 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