1.0.0.3 false Statement Of Income Alternative (USD $) In Millions, except Per Share data false 1 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDperShareItemType Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 false 2 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDperShareItemType Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 false 3 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDperShareItemType Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 false 4 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDperShareItemType Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 5 Net sales 3 us-gaap_SalesRevenueNet us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 6125000000 6125 false false 2 true true 5870000000 5870 false false 3 true true 12009000000 12009 false false 4 true true 11224000000 11224 false false No definition available. No authoritative reference available. false 6 Operating expenses 3 us-gaap_CostsAndExpensesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 7 Cost of sales 4 us-gaap_CostOfGoodsSold us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 4839000000 4839 false false 2 false true 4664000000 4664 false false 3 false true 9536000000 9536 false false 4 false true 8922000000 8922 false false No definition available. No authoritative reference available. false 8 Administrative and selling expenses 4 us-gaap_SellingGeneralAndAdministrativeExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 370000000 370 false false 2 false true 396000000 396 false false 3 false true 734000000 734 false false 4 false true 776000000 776 false false No definition available. No authoritative reference available. false 9 Research and development expenses 4 us-gaap_ResearchAndDevelopmentExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 151000000 151 false false 2 false true 142000000 142 false false 3 false true 262000000 262 false false 4 false true 249000000 249 false false No definition available. No authoritative reference available. false 10 Total operating expenses 4 us-gaap_CostsAndExpenses us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 5360000000 5360 false false 2 false true 5202000000 5202 false false 3 false true 10532000000 10532 false false 4 false true 9947000000 9947 false false No definition available. No authoritative reference available. true 11 Operating income 3 us-gaap_OperatingIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 765000000 765 false false 2 false true 668000000 668 false false 3 false true 1477000000 1477 false false 4 false true 1277000000 1277 false false No definition available. No authoritative reference available. true 12 Interest expense 3 us-gaap_InterestExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 31000000 31 false false 2 false true 34000000 34 false false 3 false true 63000000 63 false false 4 false true 68000000 68 false false No definition available. No authoritative reference available. false 13 Interest income 3 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -3000000 -3 false false 2 false true -17000000 -17 false false 3 false true -7000000 -7 false false 4 false true -40000000 -40 false false No definition available. No authoritative reference available. false 14 Other (income) expense, net 3 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -13000000 -13 false false 2 false true -2000000 -2 false false 3 false true -8000000 -8 false false 4 false true 3000000 3 false false No definition available. No authoritative reference available. false 15 Non-operating expense, net 3 us-gaap_NonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 15000000 15 false false 2 false true 15000000 15 false false 3 false true 48000000 48 false false 4 false true 31000000 31 false false No definition available. No authoritative reference available. true 16 Income from continuing operations before taxes 3 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 750000000 750 false false 2 false true 653000000 653 false false 3 false true 1429000000 1429 false false 4 false true 1246000000 1246 false false No definition available. No authoritative reference available. true 17 Federal and foreign income taxes 3 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 246000000 246 false false 2 false true 221000000 221 false false 3 false true 468000000 468 false false 4 false true 413000000 413 false false No definition available. No authoritative reference available. false 18 Income from continuing operations 3 rtn_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest rtn false credit duration monetary No definition available. false false false false false false false false false 1 false true 504000000 504 false false 2 false true 432000000 432 false false 3 false true 961000000 961 false false 4 false true 833000000 833 false false No definition available. No authoritative reference available. true 19 (Loss) income from discontinued operations, net of tax 3 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -3000000 -3 false false 2 false true 0 0 false false 3 false true 0 0 false false 4 false true -2000000 -2 false false No definition available. No authoritative reference available. false 20 Net income 3 rtn_ProfitLoss rtn false credit duration monetary No definition available. false false false false false false false false false 1 false true 501000000 501 false false 2 false true 432000000 432 false false 3 false true 961000000 961 false false 4 false true 831000000 831 false false No definition available. No authoritative reference available. true 21 Less: Net income attributable to noncontrolling interests 3 rtn_NetIncomeLossAttributableToNoncontrollingInterest rtn false debit duration monetary No definition available. false false false false false false false false false 1 false true 12000000 12 false false 2 false true 6000000 6 false false 3 false true 20000000 20 false false 4 false true 7000000 7 false false No definition available. No authoritative reference available. false 22 Net income attributable to Raytheon Company 3 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 489000000 489 false false 2 true true 426000000 426 false false 3 true true 941000000 941 false false 4 true true 824000000 824 false false No definition available. No authoritative reference available. true 23 Basic earnings (loss) per share attributable to Raytheon Company common stockholders: 3 us-gaap_EarningsPerShareBasicAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 24 Income from continuing operations 4 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true 1.25 1.25 false false 2 true true 1.02 1.02 false false 3 true true 2.38 2.38 false false 4 true true 1.96 1.96 false false No definition available. No authoritative reference available. false 25 (Loss) income from discontinued operations 4 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true -0.01 -0.01 false false 2 true true 0.00 0.00 false false 3 true true 0.00 0.00 false false 4 true true 0.00 0.00 false false No definition available. No authoritative reference available. false 26 Net income 4 us-gaap_EarningsPerShareBasic us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true 1.24 1.24 false false 2 true true 1.02 1.02 false false 3 true true 2.38 2.38 false false 4 true true 1.95 1.95 false false No definition available. No authoritative reference available. true 27 Diluted earnings (loss) per share attributable to Raytheon Company common stockholders: 3 us-gaap_EarningsPerShareDilutedAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 28 Income from continuing operations 4 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true 1.24 1.24 false false 2 true true 0.99 0.99 false false 3 true true 2.35 2.35 false false 4 true true 1.91 1.91 false false No definition available. No authoritative reference available. false 29 (Loss) income from discontinued operations 4 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true -0.01 -0.01 false false 2 true true 0.00 0.00 false false 3 true true 0.00 0.00 false false 4 true true 0.00 0.00 false false No definition available. No authoritative reference available. false 30 Net income 4 us-gaap_EarningsPerShareDiluted us-gaap true na duration decimal No definition available. false false false false false false false false true 1 true true 1.23 1.23 false false 2 true true 0.99 0.99 false false 3 true true 2.35 2.35 false false 4 true true 1.91 1.91 false false No definition available. No authoritative reference available. true false 4 26 false Millions UnKnown Hundreds false true