v3.26.3
DEI Document
Oct. 19, 2026
DEI [Abstract]  
Document Type 8-K
Document Period End Date Oct. 19, 2026
Entity Registrant Name HUNTINGTON INGALLS INDUSTRIES, INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-34910
Entity Tax Identification Number 90-0607005
City Area Code 757
Local Phone Number 380-2000
Title of 12(b) Security Common Stock
Trading Symbol HII
Security Exchange Name NYSE
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0001501585
Amendment Flag false