1.0.0.3 false Statement Of Cash Flows Indirect (USD $) In Millions 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 5 Cash flows from operating activities 3 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract 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 No definition available. false 6 Net income 4 rtn_ProfitLoss rtn false credit duration monetary No definition available. false false false false false false false false false 1 true true 961000000 961 false false 2 true true 831000000 831 false false No definition available. No authoritative reference available. false 7 (Income) loss from discontinued operations, net of tax 4 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 2000000 2 false false No definition available. No authoritative reference available. false 8 Income from continuing operations 4 rtn_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest rtn false credit duration monetary No definition available. false false false false false false false false false 1 false true 961000000 961 false false 2 false true 833000000 833 false false No definition available. No authoritative reference available. true 9 Adjustments to reconcile to net cash provided by operating activities from continuing operations, net of the effect of acquisitions and divestitures 4 us-gaap_AdjustmentsToReconcileIncomeLossToNetCashProvidedByUsedInContinuingOperationsAbstract 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 No definition available. false 10 Depreciation and amortization 5 us-gaap_DepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 194000000 194 false false 2 false true 189000000 189 false false No definition available. No authoritative reference available. false 11 Deferred income taxes 5 us-gaap_DeferredIncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 140000000 140 false false 2 false true 69000000 69 false false No definition available. No authoritative reference available. false 12 Collection of financing receivables 5 us-gaap_IncreaseDecreaseInFinanceReceivables 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 25000000 25 false false No definition available. No authoritative reference available. false 13 Tax benefit from stock-based awards 5 us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -6000000 -6 false false 2 false true -46000000 -46 false false No definition available. No authoritative reference available. false 14 Net income attributable to noncontrolling interests 5 rtn_NetIncomeLossAttributableToNoncontrollingInterest rtn false debit duration monetary No definition available. false false false false false false false false false 1 false true -20000000 -20 false false 2 false true -7000000 -7 false false No definition available. No authoritative reference available. false 15 Changes in assets and liabilities 4 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract 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 No definition available. false 16 Accounts receivable, net 5 us-gaap_IncreaseDecreaseInAccountsReceivable us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -10000000 -10 false false 2 false true 4000000 4 false false No definition available. No authoritative reference available. false 17 Contracts in process and advance payments and billings in excess of costs incurred 5 us-gaap_IncreaseDecreaseInContractReceivablesNet us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -635000000 -635 false false 2 false true -388000000 -388 false false No definition available. No authoritative reference available. false 18 Inventories 5 us-gaap_IncreaseDecreaseInInventories us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 34000000 34 false false 2 false true 7000000 7 false false No definition available. No authoritative reference available. false 19 Prepaid expenses and other current assets 5 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -16000000 -16 false false 2 false true 60000000 60 false false No definition available. No authoritative reference available. false 20 Accounts payable 5 us-gaap_IncreaseDecreaseInAccountsPayable us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -7000000 -7 false false 2 false true -11000000 -11 false false No definition available. No authoritative reference available. false 21 Income taxes receivable / payable 5 rtn_IncreaseDecreaseInIncomeTaxesNet rtn false debit duration monetary No definition available. false false false false false false false false false 1 false true 454000000 454 false false 2 false true 48000000 48 false false No definition available. No authoritative reference available. false 22 Accrued employee compensation 5 us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 3000000 3 false false 2 false true -55000000 -55 false false No definition available. No authoritative reference available. false 23 Other accrued expenses 5 us-gaap_IncreaseDecreaseInOtherAccruedLiabilities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 6000000 6 false false 2 false true -2000000 -2 false false No definition available. No authoritative reference available. false 24 Pension and other, net 5 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -190000000 -190 false false 2 false true 108000000 108 false false No definition available. No authoritative reference available. false 25 Net cash provided by operating activities from continuing operations 4 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 923000000 923 false false 2 false true 834000000 834 false false No definition available. No authoritative reference available. true 26 Net cash used in operating activities from discontinued operations 4 us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -9000000 -9 false false 2 false true -16000000 -16 false false No definition available. No authoritative reference available. false 27 Net cash provided by operating activities 4 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 914000000 914 false false 2 false true 818000000 818 false false No definition available. No authoritative reference available. true 28 Cash flows from investing activities 3 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract 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 No definition available. false 29 Additions to property, plant and equipment 4 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -81000000 -81 false false 2 false true -99000000 -99 false false No definition available. No authoritative reference available. false 30 Proceeds from sales of property, plant and equipment 4 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 1000000 1 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 31 Additions to capitalized internal use software 4 us-gaap_PaymentsToAcquireSoftware us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -34000000 -34 false false 2 false true -30000000 -30 false false No definition available. No authoritative reference available. false 32 Proceeds from sales of discontinued operations, net 4 us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 9000000 9 false false No definition available. No authoritative reference available. false 33 Payment for purchases of acquired companies, net of cash received 4 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true -34000000 -34 false false No definition available. No authoritative reference available. false 34 Change in other assets 4 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -10000000 -10 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 35 Net cash used in investing activities 4 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -124000000 -124 false false 2 false true -154000000 -154 false false No definition available. No authoritative reference available. true 36 Cash flows from financing activities 3 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract 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 No definition available. false 37 Dividends paid 4 us-gaap_PaymentsOfDividends us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -234000000 -234 false false 2 false true -227000000 -227 false false No definition available. No authoritative reference available. false 38 Repurchases of common stock 4 us-gaap_PaymentsForRepurchaseOfCommonStock us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -600000000 -600 false false 2 false true -680000000 -680 false false No definition available. No authoritative reference available. false 39 Activity under common stock plans 4 us-gaap_ProceedsFromIssuanceOrSaleOfEquity us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -16000000 -16 false false 2 false true 96000000 96 false false No definition available. No authoritative reference available. false 40 Tax benefit from stock-based awards 4 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 6000000 6 false false 2 false true 46000000 46 false false No definition available. No authoritative reference available. false 41 Other 4 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -6000000 -6 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 42 Net cash used in financing activities 4 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -850000000 -850 false false 2 false true -765000000 -765 false false No definition available. No authoritative reference available. true 43 Net decrease in cash and cash equivalents 3 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true -60000000 -60 false false 2 false true -101000000 -101 false false No definition available. No authoritative reference available. true 44 Cash and cash equivalents at beginning of the year 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false true false false 1 false true 2259000000 2259 false false 2 false true 2655000000 2655 false false No definition available. No authoritative reference available. false 45 Cash and cash equivalents at end of period 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false true false 1 true true 2199000000 2199 false false 2 true true 2554000000 2554 false false No definition available. No authoritative reference available. false false 2 41 false Millions UnKnown UnKnown false true