Document and Entity Information
Mar. 09, 2020
Cover [Abstract]  
Entity Registrant Name RAYTHEON CO/
Amendment Flag false
Entity Central Index Key 0001047122
Document Type 8-K
Document Period End Date Mar. 09, 2020
Entity Incorporation State Country Code DE
Entity File Number 1-13699
Entity Tax Identification Number 95-1778500
Entity Address, Address Line One 870 Winter Street
Entity Address, City or Town Waltham
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02451
City Area Code (781)
Local Phone Number 522-3000
Written Communications true
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $0.01 par value
Trading Symbol RTN
Security Exchange Name NYSE
Entity Emerging Growth Company false