3.25.2 html 350 359 1 true 83 0 false 5 false false R1.htm 0000001 - Document - Cover Page Sheet http://www.transdigm.com/role/CoverPage Cover Page Cover 1 false false R2.htm 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS Sheet http://www.transdigm.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS CONDENSED CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS PARENTHETICAL Sheet http://www.transdigm.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSPARENTHETICAL CONDENSED CONSOLIDATED BALANCE SHEETS PARENTHETICAL Statements 3 false false R4.htm 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME Sheet http://www.transdigm.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOME CONDENSED CONSOLIDATED STATEMENTS OF INCOME Statements 4 false false R5.htm 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Sheet http://www.transdigm.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Statements 5 false false R6.htm 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT Sheet http://www.transdigm.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSDEFICIT CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT Statements 6 false false R7.htm 9952156 - Statement - CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS Sheet http://www.transdigm.com/role/CONDENSEDCONSOLIDATEDSTATEMENTOFCASHFLOWS CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS Statements 7 false false R8.htm 9952157 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT (Parenthetical) Sheet http://www.transdigm.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSDEFICITParenthetical CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT (Parenthetical) Statements 8 false false R9.htm 9952158 - Disclosure - BASIS OF PRESENTATION Sheet http://www.transdigm.com/role/BASISOFPRESENTATION BASIS OF PRESENTATION Notes 9 false false R10.htm 9952159 - Disclosure - ACQUISITIONS Sheet http://www.transdigm.com/role/ACQUISITIONS ACQUISITIONS Notes 10 false false R11.htm 9952160 - Disclosure - REVENUE RECOGNITION Sheet http://www.transdigm.com/role/REVENUERECOGNITION REVENUE RECOGNITION Notes 11 false false R12.htm 9952161 - Disclosure - EARNINGS PER SHARE Sheet http://www.transdigm.com/role/EARNINGSPERSHARE EARNINGS PER SHARE Notes 12 false false R13.htm 9952162 - Disclosure - STOCK REPURCHASE PROGRAM Sheet http://www.transdigm.com/role/STOCKREPURCHASEPROGRAM STOCK REPURCHASE PROGRAM Notes 13 false false R14.htm 9952163 - Disclosure - INVENTORIES Sheet http://www.transdigm.com/role/INVENTORIES INVENTORIES Notes 14 false false R15.htm 9952164 - Disclosure - INTANGIBLE ASSETS Sheet http://www.transdigm.com/role/INTANGIBLEASSETS INTANGIBLE ASSETS Notes 15 false false R16.htm 9952165 - Disclosure - DEBT Sheet http://www.transdigm.com/role/DEBT DEBT Notes 16 false false R17.htm 9952166 - Disclosure - INCOME TAXES Sheet http://www.transdigm.com/role/INCOMETAXES INCOME TAXES Notes 17 false false R18.htm 9952167 - Disclosure - FAIR VALUE MEASUREMENTS Sheet http://www.transdigm.com/role/FAIRVALUEMEASUREMENTS FAIR VALUE MEASUREMENTS Notes 18 false false R19.htm 9952168 - Disclosure - DERIVATIVES AND HEDGING ACTIVITIES Sheet http://www.transdigm.com/role/DERIVATIVESANDHEDGINGACTIVITIES DERIVATIVES AND HEDGING ACTIVITIES Notes 19 false false R20.htm 9952169 - Disclosure - SEGMENTS Sheet http://www.transdigm.com/role/SEGMENTS SEGMENTS Notes 20 false false R21.htm 9952170 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Sheet http://www.transdigm.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSS ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Notes 21 false false R22.htm 9952171 - Disclosure - LEASES Sheet http://www.transdigm.com/role/LEASES LEASES Notes 22 false false R23.htm 995410 - Disclosure - Pay vs Performance Disclosure Sheet http://xbrl.sec.gov/ecd/role/PvpDisclosure Pay vs Performance Disclosure Notes 23 false false R24.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 24 false false R25.htm 9955511 - Disclosure - BASIS OF PRESENTATION (Policies) Sheet http://www.transdigm.com/role/BASISOFPRESENTATIONPolicies BASIS OF PRESENTATION (Policies) Policies 25 false false R26.htm 9955512 - Disclosure - ACQUISITIONS (Tables) Sheet http://www.transdigm.com/role/ACQUISITIONSTables ACQUISITIONS (Tables) Tables http://www.transdigm.com/role/ACQUISITIONS 26 false false R27.htm 9955513 - Disclosure - REVENUE RECOGNITION (Tables) Sheet http://www.transdigm.com/role/REVENUERECOGNITIONTables REVENUE RECOGNITION (Tables) Tables http://www.transdigm.com/role/REVENUERECOGNITION 27 false false R28.htm 9955514 - Disclosure - EARNINGS PER SHARE (Tables) Sheet http://www.transdigm.com/role/EARNINGSPERSHARETables EARNINGS PER SHARE (Tables) Tables http://www.transdigm.com/role/EARNINGSPERSHARE 28 false false R29.htm 9955515 - Disclosure - INVENTORIES (Tables) Sheet http://www.transdigm.com/role/INVENTORIESTables INVENTORIES (Tables) Tables http://www.transdigm.com/role/INVENTORIES 29 false false R30.htm 9955516 - Disclosure - INTANGIBLE ASSETS (Tables) Sheet http://www.transdigm.com/role/INTANGIBLEASSETSTables INTANGIBLE ASSETS (Tables) Tables http://www.transdigm.com/role/INTANGIBLEASSETS 30 false false R31.htm 9955517 - Disclosure - DEBT (Tables) Sheet http://www.transdigm.com/role/DEBTTables DEBT (Tables) Tables http://www.transdigm.com/role/DEBT 31 false false R32.htm 9955518 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) Sheet http://www.transdigm.com/role/FAIRVALUEMEASUREMENTSTables FAIR VALUE MEASUREMENTS (Tables) Tables http://www.transdigm.com/role/FAIRVALUEMEASUREMENTS 32 false false R33.htm 9955519 - Disclosure - DERIVATIVES AND HEDGING ACTIVITIES (Tables) Sheet http://www.transdigm.com/role/DERIVATIVESANDHEDGINGACTIVITIESTables DERIVATIVES AND HEDGING ACTIVITIES (Tables) Tables http://www.transdigm.com/role/DERIVATIVESANDHEDGINGACTIVITIES 33 false false R34.htm 9955520 - Disclosure - SEGMENTS (Tables) Sheet http://www.transdigm.com/role/SEGMENTSTables SEGMENTS (Tables) Tables http://www.transdigm.com/role/SEGMENTS 34 false false R35.htm 9955521 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) Sheet http://www.transdigm.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSTables ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) Tables http://www.transdigm.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSS 35 false false R36.htm 9955522 - Disclosure - LEASES (Tables) Sheet http://www.transdigm.com/role/LEASESTables LEASES (Tables) Tables http://www.transdigm.com/role/LEASES 36 false false R37.htm 9955523 - Disclosure - ACQUISITIONS - Simmonds Precision Products, Inc. (Details) Sheet http://www.transdigm.com/role/ACQUISITIONSSimmondsPrecisionProductsIncDetails ACQUISITIONS - Simmonds Precision Products, Inc. (Details) Details 37 false false R38.htm 9955524 - Disclosure - ACQUISITIONS - Servotronics, Inc. (Details) Sheet http://www.transdigm.com/role/ACQUISITIONSServotronicsIncDetails ACQUISITIONS - Servotronics, Inc. (Details) Details 38 false false R39.htm 9955525 - Disclosure - ACQUISITIONS - Raptor Scientific (Details) (Details) Sheet http://www.transdigm.com/role/ACQUISITIONSRaptorScientificDetailsDetails ACQUISITIONS - Raptor Scientific (Details) (Details) Details 39 false false R40.htm 9955526 - Disclosure - ACQUISITIONS - CPI's Electron Device Business (Details) Sheet http://www.transdigm.com/role/ACQUISITIONSCPIsElectronDeviceBusinessDetails ACQUISITIONS - CPI's Electron Device Business (Details) Details 40 false false R41.htm 9955527 - Disclosure - ACQUISITIONS - SEI Industries LTD (Details) Sheet http://www.transdigm.com/role/ACQUISITIONSSEIIndustriesLTDDetails ACQUISITIONS - SEI Industries LTD (Details) Details 41 false false R42.htm 9955528 - Disclosure - ACQUISITIONS - FPT Industries LLC (Details) Sheet http://www.transdigm.com/role/ACQUISITIONSFPTIndustriesLLCDetails ACQUISITIONS - FPT Industries LLC (Details) Details 42 false false R43.htm 9955529 - Disclosure - ACQUISITIONS - Extant Aerospace Acquisitions (Details) Sheet http://www.transdigm.com/role/ACQUISITIONSExtantAerospaceAcquisitionsDetails ACQUISITIONS - Extant Aerospace Acquisitions (Details) Details 43 false false R44.htm 9955530 - Disclosure - REVENUE RECOGNITION - Schedule of Contract Assets and Liabilities (Details) Sheet http://www.transdigm.com/role/REVENUERECOGNITIONScheduleofContractAssetsandLiabilitiesDetails REVENUE RECOGNITION - Schedule of Contract Assets and Liabilities (Details) Details 44 false false R45.htm 9955531 - Disclosure - REVENUE RECOGNITION - Contract Assets and Liabilities (Details) Sheet http://www.transdigm.com/role/REVENUERECOGNITIONContractAssetsandLiabilitiesDetails REVENUE RECOGNITION - Contract Assets and Liabilities (Details) Details 45 false false R46.htm 9955532 - Disclosure - EARNINGS PER SHARE - Computation of Basic and Diluted EPS (two-class method) (Details) Sheet http://www.transdigm.com/role/EARNINGSPERSHAREComputationofBasicandDilutedEPStwoclassmethodDetails EARNINGS PER SHARE - Computation of Basic and Diluted EPS (two-class method) (Details) Details 46 false false R47.htm 9955533 - Disclosure - STOCK REPURCHASE PROGRAM (Details) Sheet http://www.transdigm.com/role/STOCKREPURCHASEPROGRAMDetails STOCK REPURCHASE PROGRAM (Details) Details http://www.transdigm.com/role/STOCKREPURCHASEPROGRAM 47 false false R48.htm 9955534 - Disclosure - INVENTORIES - Schedule of Inventories (Details) Sheet http://www.transdigm.com/role/INVENTORIESScheduleofInventoriesDetails INVENTORIES - Schedule of Inventories (Details) Details 48 false false R49.htm 9955535 - Disclosure - INTANGIBLE ASSETS - Intangible Assets Subject to Amortization (Details) Sheet http://www.transdigm.com/role/INTANGIBLEASSETSIntangibleAssetsSubjecttoAmortizationDetails INTANGIBLE ASSETS - Intangible Assets Subject to Amortization (Details) Details 49 false false R50.htm 9955536 - Disclosure - INTANGIBLE ASSETS - Finite and Indefinite-Lived Intangible Assets (Details) Sheet http://www.transdigm.com/role/INTANGIBLEASSETSFiniteandIndefiniteLivedIntangibleAssetsDetails INTANGIBLE ASSETS - Finite and Indefinite-Lived Intangible Assets (Details) Details 50 false false R51.htm 9955537 - Disclosure - INTANGIBLE ASSETS - Aggregate Amortization Expense on Identifiable Intangible Assets (Details) Sheet http://www.transdigm.com/role/INTANGIBLEASSETSAggregateAmortizationExpenseonIdentifiableIntangibleAssetsDetails INTANGIBLE ASSETS - Aggregate Amortization Expense on Identifiable Intangible Assets (Details) Details 51 false false R52.htm 9955538 - Disclosure - INTANGIBLE ASSETS - Summary of Changes in Carrying Value of Goodwill (by Segment) (Details) Sheet http://www.transdigm.com/role/INTANGIBLEASSETSSummaryofChangesinCarryingValueofGoodwillbySegmentDetails INTANGIBLE ASSETS - Summary of Changes in Carrying Value of Goodwill (by Segment) (Details) Details 52 false false R53.htm 9955539 - Disclosure - DEBT - Schedule of Debt (Details) Sheet http://www.transdigm.com/role/DEBTScheduleofDebtDetails DEBT - Schedule of Debt (Details) Details 53 false false R54.htm 9955540 - Disclosure - DEBT - Additional Debt Instruments (Details) Sheet http://www.transdigm.com/role/DEBTAdditionalDebtInstrumentsDetails DEBT - Additional Debt Instruments (Details) Details 54 false false R55.htm 9955541 - Disclosure - INCOME TAXES - Narratives (Details) Sheet http://www.transdigm.com/role/INCOMETAXESNarrativesDetails INCOME TAXES - Narratives (Details) Details 55 false false R56.htm 9955542 - Disclosure - FAIR VALUE MEASUREMENTS - Carrying Amounts and Fair Values of Financial Instruments (Details) Sheet http://www.transdigm.com/role/FAIRVALUEMEASUREMENTSCarryingAmountsandFairValuesofFinancialInstrumentsDetails FAIR VALUE MEASUREMENTS - Carrying Amounts and Fair Values of Financial Instruments (Details) Details 56 false false R57.htm 9955543 - Disclosure - DERIVATIVES AND HEDGING ACTIVITIES - Summary of Outstanding Interest Rate Swap, Cap and Collar Agreements (Details) Sheet http://www.transdigm.com/role/DERIVATIVESANDHEDGINGACTIVITIESSummaryofOutstandingInterestRateSwapCapandCollarAgreementsDetails DERIVATIVES AND HEDGING ACTIVITIES - Summary of Outstanding Interest Rate Swap, Cap and Collar Agreements (Details) Details 57 false false R58.htm 9955544 - Disclosure - DERIVATIVES AND HEDGING ACTIVITIES - Summary of Balance Sheet Presentation of Derivative Assets and Liabilities (Details) Sheet http://www.transdigm.com/role/DERIVATIVESANDHEDGINGACTIVITIESSummaryofBalanceSheetPresentationofDerivativeAssetsandLiabilitiesDetails DERIVATIVES AND HEDGING ACTIVITIES - Summary of Balance Sheet Presentation of Derivative Assets and Liabilities (Details) Details 58 false false R59.htm 9955545 - Disclosure - DERIVATIVES AND HEDGING ACTIVITIES - Narratives (Details) Sheet http://www.transdigm.com/role/DERIVATIVESANDHEDGINGACTIVITIESNarrativesDetails DERIVATIVES AND HEDGING ACTIVITIES - Narratives (Details) Details 59 false false R60.htm 9955546 - Disclosure - SEGMENTS - Narratives (Details) Sheet http://www.transdigm.com/role/SEGMENTSNarrativesDetails SEGMENTS - Narratives (Details) Details 60 false false R61.htm 9955547 - Disclosure - SEGMENTS - Schedule of Net Sales by Reportable Segment (Details) Sheet http://www.transdigm.com/role/SEGMENTSScheduleofNetSalesbyReportableSegmentDetails SEGMENTS - Schedule of Net Sales by Reportable Segment (Details) Details 61 false false R62.htm 9955548 - Disclosure - SEGMENTS - Reconciliation of EBITDA Defined by Segment to Consolidated Income from Continuing Operations Before Income Taxes (Details) Sheet http://www.transdigm.com/role/SEGMENTSReconciliationofEBITDADefinedbySegmenttoConsolidatedIncomefromContinuingOperationsBeforeIncomeTaxesDetails SEGMENTS - Reconciliation of EBITDA Defined by Segment to Consolidated Income from Continuing Operations Before Income Taxes (Details) Details 62 false false R63.htm 9955549 - Disclosure - SEGMENTS - Schedule of Total Assets by Segment (Details) Sheet http://www.transdigm.com/role/SEGMENTSScheduleofTotalAssetsbySegmentDetails SEGMENTS - Schedule of Total Assets by Segment (Details) Details 63 false false R64.htm 9955550 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Accumulated Other Comprehensive Income (Loss), Net of Taxes (Details) Sheet http://www.transdigm.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSScheduleofAccumulatedOtherComprehensiveIncomeLossNetofTaxesDetails ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Accumulated Other Comprehensive Income (Loss), Net of Taxes (Details) Details http://www.transdigm.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSTables 64 false false R65.htm 9955551 - Disclosure - LEASES - Components of Lease Expense (Details) Sheet http://www.transdigm.com/role/LEASESComponentsofLeaseExpenseDetails LEASES - Components of Lease Expense (Details) Details 65 false false R66.htm 9955552 - Disclosure - LEASES - Supplemental Cash Flow Information Related To Leases (Details) Sheet http://www.transdigm.com/role/LEASESSupplementalCashFlowInformationRelatedToLeasesDetails LEASES - Supplemental Cash Flow Information Related To Leases (Details) Details 66 false false R67.htm 9955553 - Disclosure - LEASES - Supplemental Balance Sheet Information Related to Leases, Including the Remaining Lease Term and Weighted Average Discount Rates (Details) Sheet http://www.transdigm.com/role/LEASESSupplementalBalanceSheetInformationRelatedtoLeasesIncludingtheRemainingLeaseTermandWeightedAverageDiscountRatesDetails LEASES - Supplemental Balance Sheet Information Related to Leases, Including the Remaining Lease Term and Weighted Average Discount Rates (Details) Details 67 false false R68.htm 9955554 - Disclosure - LEASES - Weighted-Average Term and Discount Rate Remaining (Details) Sheet http://www.transdigm.com/role/LEASESWeightedAverageTermandDiscountRateRemainingDetails LEASES - Weighted-Average Term and Discount Rate Remaining (Details) Details 68 false false R69.htm 9955555 - Disclosure - LEASES - Maturities Schedule of Operating and Financing Leases (Details) Sheet http://www.transdigm.com/role/LEASESMaturitiesScheduleofOperatingandFinancingLeasesDetails LEASES - Maturities Schedule of Operating and Financing Leases (Details) Details 69 false false All Reports Book All Reports tdg-20250628.htm tdg-20250628.xsd tdg-20250628_cal.xml tdg-20250628_def.xml tdg-20250628_lab.xml tdg-20250628_pre.xml http://fasb.org/srt/2025 http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true