Document and Entity Information Document
Oct. 24, 2019
Document and Entity Information [Abstract]  
Document Type 8-K
Document Period End Date Oct. 24, 2019
Entity Registrant Name RAYTHEON COMPANY
Entity Incorporation, State or 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 false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.01 par value
Trading Symbol RTN
Security Exchange Name NYSE
Entity Emerging Growth Company false
Entity Central Index Key 0001047122
Amendment Flag false