| Line |
Label |
Object Class |
Period Type |
Balance |
Report ElementName |
| 1 |
1001 - Document - Document and Entity Information |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DocumentandEntityInformation |
| 2 |
Document information [table] |
Table |
* |
* |
dei:DocumentInformationTable |
| 3 |
Class of stock [axis] |
Axis |
|
|
us-gaap:StatementClassOfStockAxis |
| 4 |
Class of stock [Domain] |
Member |
|
|
us-gaap:ClassOfStockDomain |
| 5 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 6 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 7 |
Document information [line items] |
LineItems |
|
|
dei:DocumentInformationLineItems |
| 8 |
Document Type |
Concept (Submission Type) |
For Period |
|
dei:DocumentType |
| 9 |
Amendment Flag |
Concept (Yes/No) |
For Period |
|
dei:AmendmentFlag |
| 10 |
Document Period End Date |
Concept (Date) |
For Period |
|
dei:DocumentPeriodEndDate |
| 11 |
Document Fiscal Year Focus |
Concept (Year) |
For Period |
|
dei:DocumentFiscalYearFocus |
| 12 |
Document Fiscal Period Focus |
Concept (Fiscal Period) |
For Period |
|
dei:DocumentFiscalPeriodFocus |
| 13 |
Trading Symbol |
Concept (Text/String) |
For Period |
|
dei:TradingSymbol |
| 14 |
Entity Registrant Name |
Concept (Text/String) |
For Period |
|
dei:EntityRegistrantName |
| 15 |
Entity Central Index Key |
Concept (CIK Number) |
For Period |
|
dei:EntityCentralIndexKey |
| 16 |
Current Fiscal Year End Date |
Concept (Month/Day) |
For Period |
|
dei:CurrentFiscalYearEndDate |
| 17 |
Entity Well-known Seasoned Issuer |
Concept (Yes/No) |
For Period |
|
dei:EntityWellKnownSeasonedIssuer |
| 18 |
Entity Current Reporting Status |
Concept (Yes/No) |
For Period |
|
dei:EntityCurrentReportingStatus |
| 19 |
Entity Filer Category |
Concept (Filer Category) |
For Period |
|
dei:EntityFilerCategory |
| 20 |
Entity Common Stock, Shares Outstanding |
Concept (Shares) |
As Of |
|
dei:EntityCommonStockSharesOutstanding |
| 21 |
1003 - Statement - Consolidated Balance Sheets |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/StatementOfFinancialPositionCurrentNonCurrent-210000 |
| 22 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 23 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 24 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 25 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 26 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 27 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 28 |
ASSETS: |
Abstract |
|
|
ifrs-full:AssetsAbstract |
| 29 |
Current assets: |
Abstract |
|
|
ifrs-full:CurrentAssetsAbstract |
| 30 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 31 |
Short-term deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents |
| 32 |
Finance receivables |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivablesCurrent |
| 33 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 34 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInvestments |
| 35 |
Other financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentFinancialAssets |
| 36 |
Inventories |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 37 |
Other current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentNonfinancialAssets |
| 38 |
Current income tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsCurrent |
| 39 |
Investments in equity accounted investees (held for sale) |
Concept (Monetary) |
As Of |
Debit |
ttm:InvestmentsInEquityAccountedInvesteesHeldForSale |
| 40 |
Assets classified as held for sale |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentAssetsClassifiedAsHeldForSale |
| 41 |
Total current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 42 |
Non-current assets: |
Abstract |
|
|
ifrs-full:NoncurrentAssetsAbstract |
| 43 |
Finance receivables |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivablesNoncurrent |
| 44 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 45 |
Other financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentFinancialAssets |
| 46 |
Property, plant and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 47 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 48 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 49 |
Investments in equity accounted investees |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentAccountedForUsingEquityMethod |
| 50 |
Non-current income tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsNoncurrent |
| 51 |
Deferred income taxes |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 52 |
Other non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentNonfinancialAssets |
| 53 |
Total non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssets |
| 54 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 55 |
LIABILITIES AND EQUITY: |
Abstract |
|
|
ifrs-full:EquityAndLiabilitiesAbstract |
| 56 |
Liabilities: |
Abstract |
|
|
ifrs-full:LiabilitiesAbstract |
| 57 |
Current liabilities: |
Abstract |
|
|
ifrs-full:CurrentLiabilitiesAbstract |
| 58 |
Accounts payable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers |
| 59 |
Acceptances |
Concept (Monetary) |
As Of |
Credit |
ttm:CurrentAcceptances |
| 60 |
Short-term borrowings and current portion of long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 61 |
Other financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentFinancialLiabilities |
| 62 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisions |
| 63 |
Other current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentNonfinancialLiabilities |
| 64 |
Current income tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 65 |
Liabilities directly associated with Assets classified as held for sale |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale |
| 66 |
Total current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 67 |
Non-current liabilities: |
Abstract |
|
|
ifrs-full:NoncurrentLiabilitiesAbstract |
| 68 |
Long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 69 |
Other financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentFinancialLiabilities |
| 70 |
Deferred income taxes |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 71 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisions |
| 72 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentNonfinancialLiabilities |
| 73 |
Total non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 74 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 75 |
Equity: |
Abstract |
|
|
ifrs-full:EquityAbstract |
| 76 |
Ordinary shares |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IssuedCapital |
| 77 |
Additional paid-in capital |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AdditionalPaidinCapital |
| 78 |
Reserves |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherReserves |
| 79 |
Other components of equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherEquityInterest |
| 80 |
Equity attributable to shareholders of Tata Motors Limited |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAttributableToOwnersOfParent |
| 81 |
Non-controlling interests |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncontrollingInterests |
| 82 |
Total equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 83 |
Total liabilities and equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAndLiabilities |
| 84 |
1004 - Statement - Consolidated Balance Sheets (Parenthetical) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/StatementOfFinancialPositionCurrentNonCurrent-210000Parenthetical |
| 85 |
Implied Table |
Table |
* |
* |
implied:Table |
| 86 |
Statement of financial position [abstract] |
Abstract |
|
|
ifrs-full:StatementOfFinancialPositionAbstract |
| 87 |
Other comprehensive income relating to assets classified as held for sale |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AmountRecognisedInOtherComprehensiveIncomeAndAccumulatedInEquityRelatingToNoncurrentAssetsOrDisposalGroupsHeldForSale |
| 88 |
1005 - Statement - Consolidated Income Statements |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/StatementOfComprehensiveIncomeProfitOrLossByNatureOfExpense-320000 |
| 89 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 90 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 91 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 92 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 93 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 94 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 95 |
Revenues |
Concept (Monetary) |
For Period |
Credit |
ttm:RevenueFromSaleOfGoodsAndServices |
| 96 |
Finance revenues |
Concept (Monetary) |
For Period |
Credit |
ttm:FinanceRevenues |
| 97 |
Total revenues |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 98 |
Change in inventories of finished goods and work-in-progress |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ChangesInInventoriesOfFinishedGoodsAndWorkInProgress |
| 99 |
Purchase of products for sale |
Concept (Monetary) |
For Period |
Debit |
ttm:PurchaseOfProductsForSale |
| 100 |
Raw materials, components, and consumables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:RawMaterialsAndConsumablesUsed |
| 101 |
Employee cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EmployeeBenefitsExpense |
| 102 |
Defined benefit pension plan amendment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 103 |
Depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 104 |
Other expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherExpenseByNature |
| 105 |
Provision/(Reversal) for loss of inventory (net of insurance recoveries) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:WritedownsReversalsOfInventories |
| 106 |
Expenditure capitalized |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherWorkPerformedByEntityAndCapitalised |
| 107 |
Assets written off/loss on sale of assets and others (net) |
Concept (Monetary) |
For Period |
Credit |
ttm:AssetsWrittenOffOrLossOnSaleOfAssetsAndOthersNet |
| 108 |
Other (income)/loss (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherGainsLosses |
| 109 |
Foreign exchange (gain)/loss (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss |
| 110 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 111 |
Interest expense (net) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpense |
| 112 |
Share of (profit)/loss of equity accounted investees (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 113 |
Net income before tax |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 114 |
Income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 115 |
Net Income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 116 |
Attributable to: |
Abstract |
|
|
ifrs-full:ProfitLossAttributableToAbstract |
| 117 |
Shareholders of Tata Motors Limited |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossAttributableToOwnersOfParent |
| 118 |
Non-controlling interests |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossAttributableToNoncontrollingInterests |
| 119 |
Earnings per share: |
Abstract |
|
|
ifrs-full:EarningsPerShareAbstract |
| 120 |
Basic |
Concept (Share) |
For Period |
|
ifrs-full:BasicEarningsLossPerShare |
| 121 |
Diluted |
Concept (Share) |
For Period |
|
ifrs-full:DilutedEarningsLossPerShare |
| 122 |
1006 - Statement - Consolidated Statements of Comprehensive Income |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/StatementOfComprehensiveIncomeOCIComponentsPresentedNetOfTax-410000 |
| 123 |
Implied Table |
Table |
* |
* |
implied:Table |
| 124 |
Statement of comprehensive income [abstract] |
Abstract |
|
|
ifrs-full:StatementOfComprehensiveIncomeAbstract |
| 125 |
Net income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 126 |
Other comprehensive income : |
Abstract |
|
|
ifrs-full:OtherComprehensiveIncomeAbstract |
| 127 |
(i) Items that will not be reclassified subsequently to profit and loss : |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 128 |
Remeasurement gains and (losses) on defined benefit obligations (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 129 |
Share of remeasurement gains and (losses) on defined benefit obligations (net) of equity accounted investees |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax |
| 130 |
Income tax relating to items that will not be reclassified subsequently |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss |
| 131 |
Items that will not be reclassified subsequently to profit and loss |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax |
| 132 |
(ii) Items that may be reclassified subsequently to profit and loss : |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 133 |
Currency translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation |
| 134 |
Gain/(loss) on cash flow hedges (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges |
| 135 |
Available-for-sale investments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets |
| 136 |
Share of other comprehensive income of equity accounted investees |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax |
| 137 |
Income tax relating to items that may be reclassified subsequently |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss |
| 138 |
Items that may be reclassified subsequently to profit and loss |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax |
| 139 |
Other comprehensive income/(loss) for the year, net of tax (i+ii) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 140 |
Total comprehensive income/(loss) for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 141 |
Attributable to: |
Abstract |
|
|
ifrs-full:ComprehensiveIncomeAttributableToAbstract |
| 142 |
Shareholders of Tata Motors Limited |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent |
| 143 |
Non-controlling interests |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests |
| 144 |
1007 - Statement - Consolidated Statements of Cash Flows |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/StatementOfCashFlowsDirectMethod-510000 |
| 145 |
Implied Table |
Table |
* |
* |
implied:Table |
| 146 |
Statement of cash flows [abstract] |
Abstract |
|
|
ifrs-full:StatementOfCashFlowsAbstract |
| 147 |
Cash flows from operating activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract |
| 148 |
Net income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 149 |
Adjustments for: |
Abstract |
|
|
ifrs-full:AdjustmentsForReconcileProfitLossAbstract |
| 150 |
Depreciation and amortization expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 151 |
Inventory write-down/(reversals) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories |
| 152 |
Allowances for finance receivables |
Concept (Monetary) |
For Period |
Debit |
ttm:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossFinanceReceivables |
| 153 |
Defined benefit pension plan ammendment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 154 |
Allowances for trade and other receivables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables |
| 155 |
Impairment of Goodwill |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill |
| 156 |
Share of (profit)/loss of equity accounted investees (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 157 |
Loss on sale of assets/assets written off and others (net) |
Concept (Monetary) |
For Period |
Debit |
ttm:LossOnSaleOfAssetsWrittenOffAndOthersNet |
| 158 |
(Gain) on sale/loss on fair valuation of available-for-sale investments (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnAvailableforsaleFinancialAssets |
| 159 |
(Gain)/Loss on change in fair value of commodity derivatives |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives |
| 160 |
Fair value gain on disposal of joint venture |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates |
| 161 |
Foreign exchange (gain)/loss (net) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains |
| 162 |
Income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 163 |
Interest expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpense |
| 164 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 165 |
Dividend income and income on mutual funds |
Concept (Monetary) |
For Period |
Credit |
ttm:AdjustmentsForDividendIncomeAndIncomeOnMutualFunds |
| 166 |
Gain on fair value of below market interest loans |
Concept (Monetary) |
For Period |
Credit |
ttm:GainOnFairValueOfBelowMarketInterestLoans |
| 167 |
Non-cash dividend income on mutual funds |
Concept (Monetary) |
For Period |
Credit |
ttm:NoncashDividendIncomeOnMutualFunds |
| 168 |
Cash flows from operating activities before changes in following assets and liabilities |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital |
| 169 |
Trade receivables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable |
| 170 |
Finance receivables |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForDecreaseIncreaseInFinanceReceivables |
| 171 |
Other financial assets |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForDecreaseIncreaseInOtherFinancialAssets |
| 172 |
Other current assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets |
| 173 |
Inventories |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInInventories |
| 174 |
Other non-current assets |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForDecreaseIncreaseInOtherNonCurrentAssets |
| 175 |
Accounts payable |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable |
| 176 |
Acceptances |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForIncreaseDecreaseInAcceptances |
| 177 |
Other current liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities |
| 178 |
Other financial liabilities |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForIncreaseDecreaseInOtherFinancialLiabilities |
| 179 |
Other non-current liabilities |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForIncreaseDecreaseInOtherNoncurrentLiabilities |
| 180 |
Provisions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForProvisions |
| 181 |
Cash generated from operations |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperations |
| 182 |
Income tax paid (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities |
| 183 |
Net cash provided by operating activities |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperatingActivities |
| 184 |
Cash flows from investing activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract |
| 185 |
Deposits with banks/financial institutions |
Concept (Monetary) |
For Period |
Credit |
ttm:DepositsWithBanksFinancialInstitutionsInvestingActivities |
| 186 |
Realization of deposits with banks / financial institutions |
Concept (Monetary) |
For Period |
Debit |
ttm:RealizationOfDepositsWithBanksFinancialInstitutionsInvestingActivities |
| 187 |
(Purchase)/sale of available-for-sale investments (net) |
Concept (Monetary) |
For Period |
Debit |
ttm:PurchaseSaleOfAvailableForSaleInvestmentsNet |
| 188 |
Purchases of available-for-sale investments/other investments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 189 |
Proceeds from sale of available-for-sale investments/other investments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 190 |
Excess of cash acquired on acquisition of subsidiary company |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013 |
| 191 |
Deposits of margin money and other restricted deposits |
Concept (Monetary) |
For Period |
Credit |
ttm:DepositsOfMarginMoneyAndOtherRestrictedDeposits |
| 192 |
Realization of margin money and other restricted deposits |
Concept (Monetary) |
For Period |
Debit |
ttm:RealizationOfMarginMoneyAndOtherRestrictedDeposits |
| 193 |
(Increase)/decrease in short term inter-corporate deposits |
Concept (Monetary) |
For Period |
Debit |
ttm:CashFlowsFromUsedInDecreaseIncreaseInShorttermIntercorporateDeposits |
| 194 |
Loan to others |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities |
| 195 |
Repayment of loan by others |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities |
| 196 |
Repayments of loan by joint operation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties |
| 197 |
Investments in equity accounted investees |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod |
| 198 |
Dividends received from equity accounted investees |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsReceivedFromInvestmentsAccountedForUsingEquityMethodClassifiedAsInvestingActivities |
| 199 |
Interest received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestReceivedClassifiedAsInvestingActivities |
| 200 |
Dividend received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsReceivedClassifiedAsInvestingActivities |
| 201 |
Payments for property, plant and equipment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities |
| 202 |
Proceeds from sale of property, plant and equipment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities |
| 203 |
Payments for intangible assets |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities |
| 204 |
Net cash used in investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInInvestingActivities |
| 205 |
Cash flows from financing activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract |
| 206 |
Proceeds from issuance of shares |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromIssueOfOrdinaryShares |
| 207 |
Proceeds from issuance of shares to non-controlling interests shareholders |
Concept (Monetary) |
For Period |
Debit |
ttm:ProceedsFromIssueOfOrdinarySharesToNoncontrollingInterestsShareholders |
| 208 |
Shares issuance costs |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsForShareIssueCosts |
| 209 |
Dividends paid (including dividend distribution tax) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DividendsPaidClassifiedAsFinancingActivities |
| 210 |
Dividends paid to non-controlling interests shareholders of subsidiaries (including dividend distribution tax) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities |
| 211 |
Interest paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestPaidClassifiedAsFinancingActivities |
| 212 |
Proceeds from issuance of short-term debt |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromCurrentBorrowings |
| 213 |
Repayment of short-term debt |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfCurrentBorrowings |
| 214 |
Net change in other short-term debt (with maturity up to three months) |
Concept (Monetary) |
For Period |
Debit |
ttm:NetChangeInOtherShortTermDebtWithMaturityUpToThreeMonths |
| 215 |
Proceeds from issuance of long-term debt |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromNoncurrentBorrowings |
| 216 |
Repayments of long-term debt |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfNoncurrentBorrowings |
| 217 |
Debt issuance cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsForDebtIssueCosts |
| 218 |
Distribution to non-controlling interests |
Concept (Monetary) |
For Period |
Credit |
ttm:DistributionsToNoncontrollingInterests |
| 219 |
Net cash provided by/(used in) financing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInFinancingActivities |
| 220 |
Net change in cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges |
| 221 |
Classified as held for sale |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsDiscontinuedOperations |
| 222 |
Effect of foreign exchange on cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents |
| 223 |
Cash and cash equivalents, beginning of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 224 |
Cash and cash equivalents, end of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 225 |
Non-cash transactions: |
Abstract |
|
|
ttm:NonCashTransactionsAbstract |
| 226 |
Liability towards property, plant and equipment and intangible assets purchased on credit/deferred credit |
Concept (Monetary) |
For Period |
Credit |
ttm:LiabilityTowardsPropertyPlantAndEquipmentAndIntangibleAssetsPurchasedOnCreditDeferredCredit |
| 227 |
Increase/(decrease) in liabilities arising from financing activities on account of non-cash transactions: |
Abstract |
|
|
ifrs-full:ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract |
| 228 |
Exchange differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities |
| 229 |
Classified as held for sale |
Concept (Monetary) |
For Period |
Credit |
ttm:IncreaseDecreaseThroughClassifiedAsHeldForSaleLiabilitiesArisingFromFinancingActivities |
| 230 |
Amortisation of prepaid discounting charges |
Concept (Monetary) |
For Period |
Credit |
ttm:AmortisationOfPrepaidDiscountingCharges |
| 231 |
1008 - Statement - Consolidated Statements of Cash Flows (Parenthetical) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/StatementOfCashFlowsDirectMethod-510000Parenthetical |
| 232 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 233 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 234 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 235 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 236 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 237 |
Proceeds from issuance of shares |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromIssueOfOrdinaryShares |
| 238 |
1009 - Statement - Consolidated Statements of Changes in Equity |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/StatementOfChangesInEquity-610000 |
| 239 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 240 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 241 |
Equity [Member] |
Member |
|
|
ifrs-full:EquityMember |
| 242 |
Share capital [Member] |
Member |
|
|
ifrs-full:IssuedCapitalMember |
| 243 |
Additional paid-in capital [Member] |
Member |
|
|
ifrs-full:AdditionalPaidinCapitalMember |
| 244 |
Currency translation reserve [Member] |
Member |
|
|
ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember |
| 245 |
Available-for-sale investments [Member] |
Member |
|
|
ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember |
| 246 |
Hedging reserve [Member] |
Member |
|
|
ifrs-full:ReserveOfCashFlowHedgesMember |
| 247 |
Other components of equity [Member] |
Member |
|
|
ifrs-full:OtherEquityInterestMember |
| 248 |
Capital redemption reserve [Member] |
Member |
|
|
ifrs-full:CapitalRedemptionReserveMember |
| 249 |
Debenture redemption reserve [Member] |
Member |
|
|
ttm:DebentureRedemptionReserveMember |
| 250 |
Reserve for research and human resource development [Member] |
Member |
|
|
ttm:ReserveForResearchAndHumanResourceDevelopmentMember |
| 251 |
Special reserve [Member] |
Member |
|
|
ttm:SpecialReserveMember |
| 252 |
Earned surplus reserve [Member] |
Member |
|
|
ttm:EarnedSurplusReserveMember |
| 253 |
Retained earnings [Member] |
Member |
|
|
ifrs-full:RetainedEarningsMember |
| 254 |
Reserves [Member] |
Member |
|
|
ifrs-full:OtherReservesMember |
| 255 |
Equity attributable to shareholders of Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:EquityAttributableToOwnersOfParentMember |
| 256 |
Non-controlling interests [Member] |
Member |
|
|
ifrs-full:NoncontrollingInterestsMember |
| 257 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 258 |
Balance at the beginning |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 259 |
Income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 260 |
Other comprehensive income /(loss) for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 261 |
Total comprehensive income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 262 |
Issue of shares held in abeyance |
Concept (Monetary) |
For Period |
Credit |
ttm:IssueOfSharesHeldInAbeyance |
| 263 |
Issue of shares pursuant to Rights (net of issue expenses of Rs. 572.6 million) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IssueOfEquity |
| 264 |
Non-controlling interest on Acquisitions during the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary |
| 265 |
Distribution to non-controlling interest |
Concept (Monetary) |
For Period |
Debit |
ttm:PaymentsRecognisedAsDistributionsToNoncontrollingInterests |
| 266 |
Shares issued to non-controlling interests |
Concept (Monetary) |
For Period |
Credit |
ttm:SharesIssuedToNoncontrollingInterestsValue |
| 267 |
Changes to non-controllinginterest |
Concept (Monetary) |
For Period |
Credit |
ttm:ChangeInNonControllingInterests |
| 268 |
Dividend paid (including dividend tax) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsPaid |
| 269 |
Transfer (from)/to retained earnings |
Concept (Monetary) |
For Period |
Credit |
ttm:IncreaseDecreaseThroughTransferBetweenReserveAndRetainedEarnings |
| 270 |
Transfer to debenture redemption reserve |
Concept (Monetary) |
For Period |
Credit |
ttm:IncreaseDecreaseThroughTransferToDebentureRedemptionReserve |
| 271 |
Transfer to earned surplus reserve |
Concept (Monetary) |
For Period |
Credit |
ttm:IncreaseDecreaseThroughTransferToEarnedSurplusReserve |
| 272 |
Transfer to special reserve |
Concept (Monetary) |
For Period |
Credit |
ttm:IncreaseDecreaseThroughTransferToSpecialReserve |
| 273 |
Balance at the end |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 274 |
1010 - Statement - Consolidated Statements of Changes in Equity (Parenthetical) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/StatementOfChangesInEquity-610000Parenthetical |
| 275 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 276 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 277 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 278 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 279 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 280 |
Issue of shares held in abeyance |
Concept (Monetary) |
For Period |
Credit |
ttm:IssueOfSharesHeldInAbeyance |
| 281 |
Issue of shares pursuant to Rights, issue expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ShareIssueRelatedCost |
| 282 |
1011 - Disclosure - Background and operations |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfGeneralInformationAboutFinancialStatementsExplanatory |
| 283 |
Implied Table |
Table |
* |
* |
implied:Table |
| 284 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 285 |
Background and operations |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory |
| 286 |
1012 - Disclosure - Significant accounting policies |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory |
| 287 |
Implied Table |
Table |
* |
* |
implied:Table |
| 288 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 289 |
Significant accounting policies |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory |
| 290 |
1013 - Disclosure - Cash and cash equivalents |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatory |
| 291 |
Implied Table |
Table |
* |
* |
implied:Table |
| 292 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 293 |
Cash and cash equivalents |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory |
| 294 |
1014 - Disclosure - Finance receivables |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceReceivablesExplanatory |
| 295 |
Implied Table |
Table |
* |
* |
implied:Table |
| 296 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 297 |
Finance receivables |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfFinanceReceivablesExplanatory |
| 298 |
1015 - Disclosure - Allowance for trade and other receivables |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAllowanceForCreditLossesExplanatory |
| 299 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 300 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 301 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 302 |
Trades and other receivables [Member] |
Member |
|
|
ttm:TradesAndOtherReceivablesMember |
| 303 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 304 |
Allowance for trade and other receivables |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfAllowanceForCreditLossesExplanatory |
| 305 |
1016 - Disclosure - Investments |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory |
| 306 |
Implied Table |
Table |
* |
* |
implied:Table |
| 307 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 308 |
Investments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory |
| 309 |
1017 - Disclosure - Other financial assets |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialAssetsExplanatory |
| 310 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 311 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 312 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 313 |
Other financial assets - current [Member] |
Member |
|
|
ttm:OtherCurrentFinancialAssetsMember |
| 314 |
Other financial assets - noncurrent [Member] |
Member |
|
|
ttm:OtherNoncurrentFinancialAssetsMember |
| 315 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 316 |
Other financial assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialAssetsExplanatory |
| 317 |
1018 - Disclosure - Inventories |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatory |
| 318 |
Implied Table |
Table |
* |
* |
implied:Table |
| 319 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 320 |
Inventories |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInventoriesExplanatory |
| 321 |
1019 - Disclosure - Other current assets |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherCurrentAssetsExplanatory |
| 322 |
Implied Table |
Table |
* |
* |
implied:Table |
| 323 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 324 |
Other current assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherCurrentAssetsExplanatory |
| 325 |
1020 - Disclosure - Other non-current assets |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherNoncurrentAssetsExplanatory |
| 326 |
Implied Table |
Table |
* |
* |
implied:Table |
| 327 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 328 |
Other non-current assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherNoncurrentAssetsExplanatory |
| 329 |
1021 - Disclosure - Property, plant and equipment |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatory |
| 330 |
Implied Table |
Table |
* |
* |
implied:Table |
| 331 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 332 |
Property, plant and equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory |
| 333 |
1022 - Disclosure - Leases |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfLeasesExplanatory |
| 334 |
Implied Table |
Table |
* |
* |
implied:Table |
| 335 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 336 |
Leases |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfLeasesExplanatory |
| 337 |
1023 - Disclosure - Goodwill |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfGoodwillExplanatory |
| 338 |
Implied Table |
Table |
* |
* |
implied:Table |
| 339 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 340 |
Goodwill |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGoodwillExplanatory |
| 341 |
1024 - Disclosure - Intangible assets |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatory |
| 342 |
Implied Table |
Table |
* |
* |
implied:Table |
| 343 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 344 |
Intangible assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIntangibleAssetsExplanatory |
| 345 |
1025 - Disclosure - Investments in equity accounted investees: |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory |
| 346 |
Implied Table |
Table |
* |
* |
implied:Table |
| 347 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 348 |
Investments in equity accounted investees: |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatory |
| 349 |
1026 - Disclosure - Income taxes |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatory |
| 350 |
Implied Table |
Table |
* |
* |
implied:Table |
| 351 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 352 |
Income taxes |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIncomeTaxExplanatory |
| 353 |
1027 - Disclosure - Debt |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBorrowingsExplanatory |
| 354 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 355 |
Classes of financial liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialLiabilitiesAxis |
| 356 |
Financial liabilities, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesMember |
| 357 |
Short-term borrowings and current portion of long-term debt [Member] |
Member |
|
|
ttm:ShortTermBorrowingsAndCurrentPortionOfLongTermBorrowingsMember |
| 358 |
Long-term debt [Member] |
Member |
|
|
ttm:LongTermDebt1Member |
| 359 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 360 |
Debt |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBorrowingsExplanatory |
| 361 |
1028 - Disclosure - Other financial liabilities |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialLiabilitiesExplanatory |
| 362 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 363 |
Classes of financial liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialLiabilitiesAxis |
| 364 |
Financial liabilities, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesMember |
| 365 |
Other financial liabilities - current [Member] |
Member |
|
|
ttm:OtherFinancialLiabilitiesCurrentMember |
| 366 |
Other financial liabilities - non-current [Member] |
Member |
|
|
ttm:OtherFinancialLiabilitiesNoncurrentMember |
| 367 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 368 |
Other financial liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory |
| 369 |
1029 - Disclosure - Provisions |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsExplanatory |
| 370 |
Implied Table |
Table |
* |
* |
implied:Table |
| 371 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 372 |
Provisions |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfProvisionsExplanatory |
| 373 |
1030 - Disclosure - Other current liabilities |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherCurrentLiabilitiesExplanatory |
| 374 |
Implied Table |
Table |
* |
* |
implied:Table |
| 375 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 376 |
Other current liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherCurrentLiabilitiesExplanatory |
| 377 |
1031 - Disclosure - Other liabilities - non-current |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherNoncurrentLiabilitiesExplanatory |
| 378 |
Implied Table |
Table |
* |
* |
implied:Table |
| 379 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 380 |
Other liabilities - non-current |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory |
| 381 |
1032 - Disclosure - Equity |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIssuedCapitalExplanatory |
| 382 |
Implied Table |
Table |
* |
* |
implied:Table |
| 383 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 384 |
Equity |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfIssuedCapitalExplanatory |
| 385 |
1033 - Disclosure - Other components of equity |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfReservesAndOtherEquityInterestExplanatory |
| 386 |
Implied Table |
Table |
* |
* |
implied:Table |
| 387 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 388 |
Other components of equity |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfReservesAndOtherEquityInterestExplanatory |
| 389 |
1034 - Disclosure - Notes to reserves and dividends |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfReservesAndDividendsExplanatory |
| 390 |
Implied Table |
Table |
* |
* |
implied:Table |
| 391 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 392 |
Notes to reserves and dividends |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfReservesAndDividendsExplanatory |
| 393 |
1035 - Disclosure - Employee cost |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeCostExplanatory |
| 394 |
Implied Table |
Table |
* |
* |
implied:Table |
| 395 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 396 |
Employee cost |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfEmployeeCostExplanatory |
| 397 |
1036 - Disclosure - Other expenses |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesExplanatory |
| 398 |
Implied Table |
Table |
* |
* |
implied:Table |
| 399 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 400 |
Other expenses |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfExpensesExplanatory |
| 401 |
1037 - Disclosure - Other income/(loss) (net) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherIncomeLossExplanatory |
| 402 |
Implied Table |
Table |
* |
* |
implied:Table |
| 403 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 404 |
Other income/(loss) (net) |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfOtherIncomeLossExplanatory |
| 405 |
1038 - Disclosure - Interest expense (net) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestExpenseExplanatory |
| 406 |
Implied Table |
Table |
* |
* |
implied:Table |
| 407 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 408 |
Interest expense (net) |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInterestExpenseExplanatory |
| 409 |
1039 - Disclosure - Employee benefits |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeBenefitsExplanatory |
| 410 |
Implied Table |
Table |
* |
* |
implied:Table |
| 411 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 412 |
Employee benefits |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEmployeeBenefitsExplanatory |
| 413 |
1040 - Disclosure - Commitments and contingencies |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCommitmentsAndContingentLiabilitiesExplanatory |
| 414 |
Implied Table |
Table |
* |
* |
implied:Table |
| 415 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 416 |
Commitments and contingencies |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory |
| 417 |
1041 - Disclosure - Capital Management |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory |
| 418 |
Implied Table |
Table |
* |
* |
implied:Table |
| 419 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 420 |
Capital Management |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory |
| 421 |
1042 - Disclosure - Disclosures on financial instruments |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatory |
| 422 |
Implied Table |
Table |
* |
* |
implied:Table |
| 423 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 424 |
Disclosures on financial instruments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinancialInstrumentsExplanatory |
| 425 |
1043 - Disclosure - Collaterals |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCollateralExplanatory |
| 426 |
Implied Table |
Table |
* |
* |
implied:Table |
| 427 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 428 |
Collaterals |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCollateralExplanatory |
| 429 |
1044 - Disclosure - Segment reporting |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEntitysReportableSegmentsExplanatory |
| 430 |
Implied Table |
Table |
* |
* |
implied:Table |
| 431 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 432 |
Segment reporting |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory |
| 433 |
1045 - Disclosure - Related-party transactions |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatory |
| 434 |
Implied Table |
Table |
* |
* |
implied:Table |
| 435 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 436 |
Related-party transactions |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRelatedPartyExplanatory |
| 437 |
1046 - Disclosure - Earnings per share ("EPS") |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatory |
| 438 |
Implied Table |
Table |
* |
* |
implied:Table |
| 439 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 440 |
Earnings per share ("EPS") |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfEarningsPerShareExplanatory |
| 441 |
1047 - Disclosure - Assets and liabilities classifed as held for sale |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInformationAboutAssetsAndLiabilitiesOfDisposalGroupsClassifiedAsHeldForSaleExplanatory |
| 442 |
Implied Table |
Table |
* |
* |
implied:Table |
| 443 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 444 |
Assets and liabilities classifed as held for sale |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfInformationAboutAssetsAndLiabilitiesOfDisposalGroupsClassifiedAsHeldForSaleExplanatory |
| 445 |
1048 - Disclosure - Subsidiaries |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestsInSubsidiariesExplanatory |
| 446 |
Implied Table |
Table |
* |
* |
implied:Table |
| 447 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 448 |
Subsidiaries |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory |
| 449 |
1049 - Disclosure - Subsequent events |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsSubsequentEventsTextBlock |
| 450 |
Implied Table |
Table |
* |
* |
implied:Table |
| 451 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 452 |
Subsequent events |
Concept (Text Block (HTML)) |
For Period |
|
us-gaap:SubsequentEventsTextBlock |
| 453 |
1050 - Disclosure - Condensed financial information of Tata Motors Limited and subsidiaries |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfConsolidatedAndSeparateFinancialStatementsExplanatory |
| 454 |
Implied Table |
Table |
* |
* |
implied:Table |
| 455 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 456 |
Condensed financial information of Tata Motors Limited and subsidiaries |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfConsolidatedAndSeparateFinancialStatementsExplanatory |
| 457 |
1051 - Disclosure - Significant accounting policies (Policies) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryPolicies |
| 458 |
Implied Table |
Table |
* |
* |
implied:Table |
| 459 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 460 |
Statement of compliance |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:StatementOfIFRSCompliance |
| 461 |
Basis of preparation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory |
| 462 |
Basis of consolidation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBasisOfConsolidationExplanatory |
| 463 |
Business Combinations |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory |
| 464 |
Use of estimates and judgments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory |
| 465 |
Revenue recognition |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue |
| 466 |
Cost recognition |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForExpensesExplanatory |
| 467 |
Provisions |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory |
| 468 |
Foreign currency |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory |
| 469 |
Income taxes |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory |
| 470 |
Earnings per share |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory |
| 471 |
Inventories |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories |
| 472 |
Property, plant and equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory |
| 473 |
Intangible assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory |
| 474 |
Leases |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory |
| 475 |
Impairment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory |
| 476 |
Employee benefits |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory |
| 477 |
Dividends |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForDividendsExplanatory |
| 478 |
Segments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory |
| 479 |
Financial instruments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory |
| 480 |
Hedge accounting |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyForHedgingExplanatory |
| 481 |
Cash and cash equivalents |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents |
| 482 |
Recent accounting pronouncements |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations |
| 483 |
Convenience translation |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DescriptionOfAccountingPolicyForConvenienceTranslationExplanatory |
| 484 |
1052 - Disclosure - Significant accounting policies (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryTables |
| 485 |
Implied Table |
Table |
* |
* |
implied:Table |
| 486 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 487 |
Summary of Estimated Useful Lives of Assets |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutEstimatedUsefulLivesOfPropertyPlantAndEquipmentExplanatory |
| 488 |
Summary of Estimated Useful Lives of Intangible Assets |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutestimatedUseFulLivesIntangibleAssetsExplanatory |
| 489 |
Summary of Expected Impact on Initial Application of IFRS 9 |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:ExplanationOfFirsttimeAdoptionOfIFRS9 |
| 490 |
1053 - Disclosure - Cash and cash equivalents (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatoryTables |
| 491 |
Implied Table |
Table |
* |
* |
implied:Table |
| 492 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 493 |
Summary of Cash and Cash Equivalents |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory |
| 494 |
1054 - Disclosure - Finance receivables (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceReceivablesExplanatoryTables |
| 495 |
Implied Table |
Table |
* |
* |
implied:Table |
| 496 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 497 |
Summary of Finance Receivables |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutFinanceReceivablesExplanatory |
| 498 |
1055 - Disclosure - Allowance for trade and other receivables (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAllowanceForCreditLossesExplanatoryTables |
| 499 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 500 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 501 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 502 |
Finance receivables [Member] |
Member |
|
|
ttm:FinanceReceivables1Member |
| 503 |
Trades and other receivables [Member] |
Member |
|
|
ttm:TradesAndOtherReceivablesMember |
| 504 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 505 |
Summary of Changes in Allowance for Credit Losses |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutAllowanceForCreditLossesExplanatory |
| 506 |
1056 - Disclosure - Investments (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatoryTables |
| 507 |
Implied Table |
Table |
* |
* |
implied:Table |
| 508 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 509 |
Summary of Investments |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory |
| 510 |
Summary of Available-for-sale, Financial Assets (Investments) |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfAvailableforsaleAssetsExplanatory |
| 511 |
Summary of Current and Non-current Classifications of Investments |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfCurrentAndNonCurrentClassificationsOfInvestmentsExplanatory |
| 512 |
1057 - Disclosure - Other financial assets (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialAssetsExplanatoryTables |
| 513 |
Implied Table |
Table |
* |
* |
implied:Table |
| 514 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 515 |
Summary of Other Financial Assets - Current |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfOtherFinancialAssetsClassifiedAsCurrentExplanatory |
| 516 |
Summary of Other Financial Assets - Non-current |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfOtherFinancialAssetsClassifiedAsNonCurrentExplanatory |
| 517 |
1058 - Disclosure - Inventories (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInventoriesExplanatoryTables |
| 518 |
Implied Table |
Table |
* |
* |
implied:Table |
| 519 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 520 |
Summary of Inventories |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutInventoriesExplanatory |
| 521 |
1059 - Disclosure - Other current assets (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherCurrentAssetsExplanatoryTables |
| 522 |
Implied Table |
Table |
* |
* |
implied:Table |
| 523 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 524 |
Summary of Other Current Assets |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutOtherCurrentAssetsExplanatory |
| 525 |
1060 - Disclosure - Other non-current assets (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherNoncurrentAssetsExplanatoryTables |
| 526 |
Implied Table |
Table |
* |
* |
implied:Table |
| 527 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 528 |
Summary of Other Non-current Assets |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutOtherNoncurrentAssetsExplanatory |
| 529 |
1061 - Disclosure - Property, plant and equipment (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatoryTables |
| 530 |
Implied Table |
Table |
* |
* |
implied:Table |
| 531 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 532 |
Summary of Property, Plant and Equipment |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory |
| 533 |
Summary of Net Carrying Amounts of Property, Plant and Equipment under Finance Lease Arrangements |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeExplanatory |
| 534 |
1062 - Disclosure - Leases (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfLeasesExplanatoryTables |
| 535 |
Implied Table |
Table |
* |
* |
implied:Table |
| 536 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 537 |
Summary of Future Minimum Lease Rental Payments under Non-cancellable Operating Leases and Finance Leases |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory |
| 538 |
1063 - Disclosure - Goodwill (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfGoodwillExplanatoryTables |
| 539 |
Implied Table |
Table |
* |
* |
implied:Table |
| 540 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 541 |
Summary of Goodwill |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory |
| 542 |
1064 - Disclosure - Intangible assets (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatoryTables |
| 543 |
Implied Table |
Table |
* |
* |
implied:Table |
| 544 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 545 |
Summary of Intangible Assets |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory |
| 546 |
1065 - Disclosure - Investments in equity accounted investees: (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInvestmentsAccountedForUsingEquityMethodExplanatoryTables |
| 547 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 548 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 549 |
Entity's total for joint ventures [Member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 550 |
Chery Jaguar Land Rover Automotive Co. Limited [member] |
Member |
|
|
ttm:CheryJaguarLandRoverAutomotiveCoLimitedMember |
| 551 |
Immaterial joint ventures [Member] |
Member |
|
|
ifrs-full:AggregatedIndividuallyImmaterialJointVenturesMember |
| 552 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 553 |
Entity's total for associates [Member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 554 |
Immaterial associates [Member] |
Member |
|
|
ifrs-full:AggregatedIndividuallyImmaterialAssociatesMember |
| 555 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 556 |
Summary of Financial Information of Immaterial Associates Accounted for using the Equity Method |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInterestsInAssociatesExplanatory |
| 557 |
Summary of Joint Venture |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfJointVenturesExplanatory |
| 558 |
Summary of Reconciliation of Financial Information to Carrying Amount of Interest in Joint Venture |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfReconciliationOfSummarisedFinancialInformationOfJointVentureAccountedForUsingEquityMethodToCarryingAmountOfInterestInJointVentureExplanatory |
| 559 |
Summary of Investments in Equity Accounted Investees |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutInvestmentsAccountedForUsingEquityMethodExplanatory |
| 560 |
1066 - Disclosure - Income taxes (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatoryTables |
| 561 |
Implied Table |
Table |
* |
* |
implied:Table |
| 562 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 563 |
Summary of Domestic and Foreign Components of Net Income Before Income Tax |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDomesticAndForeignComponentsOfNetIncomeBeforeIncomeTaxExplanatory |
| 564 |
Summary of Domestic and Foreign Components of Income Tax Expense |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfIncomeTaxExpenseBenefitsExplanatory |
| 565 |
Summary of Reconciliation of Estimated Income Tax to Income Tax Expense |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfReconciliationOfEstimatedIncomeTaxToProvisionForIncomeTaxesExplanatory |
| 566 |
Summary of Significant Components of Deferred Tax Assets and Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDeferredTaxesExplanatory |
| 567 |
Summary of Unrecognized Deferred Tax Assets Expire Unutilized based on Year of Origination |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory |
| 568 |
1067 - Disclosure - Debt (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBorrowingsExplanatoryTables |
| 569 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 570 |
Entity listings, exchange [axis] |
Axis |
|
|
dei:EntityListingsExchangeAxis |
| 571 |
Exchange [Domain] |
Member |
|
|
dei:ExchangeDomain |
| 572 |
Luxembourg Stock Exchange [Member] |
Member |
|
|
exch:XLUX |
| 573 |
Singapore Stock Exchange [Member] |
Member |
|
|
exch:XSES |
| 574 |
Classes of financial liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialLiabilitiesAxis |
| 575 |
Financial liabilities, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesMember |
| 576 |
Short-term borrowings and current portion of long-term debt [Member] |
Member |
|
|
ttm:ShortTermBorrowingsAndCurrentPortionOfLongTermBorrowingsMember |
| 577 |
Long-term debt [Member] |
Member |
|
|
ttm:LongTermDebt1Member |
| 578 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 579 |
Summary of Debt |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory |
| 580 |
1068 - Disclosure - Other financial liabilities (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialLiabilitiesExplanatoryTables |
| 581 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 582 |
Classes of financial liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialLiabilitiesAxis |
| 583 |
Financial liabilities, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesMember |
| 584 |
Other financial liabilities - non-current [Member] |
Member |
|
|
ttm:OtherFinancialLiabilitiesNoncurrentMember |
| 585 |
Other financial liabilities - current [Member] |
Member |
|
|
ttm:OtherFinancialLiabilitiesCurrentMember |
| 586 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 587 |
Summary of Other Financial Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutFinancialLiabilitiesExplanatory |
| 588 |
1069 - Disclosure - Provisions (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfProvisionsExplanatoryTables |
| 589 |
Implied Table |
Table |
* |
* |
implied:Table |
| 590 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 591 |
Summary of Provisions |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutProvisionsExplanatory |
| 592 |
1070 - Disclosure - Other current liabilities (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherCurrentLiabilitiesExplanatoryTables |
| 593 |
Implied Table |
Table |
* |
* |
implied:Table |
| 594 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 595 |
Summary of Other Current Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutOtherCurrentLiabilitiesExplanatory |
| 596 |
1071 - Disclosure - Other liabilities - non-current (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherNoncurrentLiabilitiesExplanatoryTables |
| 597 |
Implied Table |
Table |
* |
* |
implied:Table |
| 598 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 599 |
Other liabilities - Non-Current |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutOtherNoncurrentLiabilitiesExplanatory |
| 600 |
1072 - Disclosure - Equity (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIssuedCapitalExplanatoryTables |
| 601 |
Implied Table |
Table |
* |
* |
implied:Table |
| 602 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 603 |
Summary of Movement of Number of Shares and Share Capital |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory |
| 604 |
1073 - Disclosure - Other components of equity (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfReservesAndOtherEquityInterestExplanatoryTables |
| 605 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 606 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 607 |
Equity [Member] |
Member |
|
|
ifrs-full:EquityMember |
| 608 |
Currency translation reserve [Member] |
Member |
|
|
ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember |
| 609 |
Available-for-sale investments [Member] |
Member |
|
|
ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember |
| 610 |
Hedging reserve [Member] |
Member |
|
|
ifrs-full:ReserveOfCashFlowHedgesMember |
| 611 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 612 |
Summary of Other Components of Equity |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutOtherComponentsOfEquityExplanatory |
| 613 |
1074 - Disclosure - Employee cost (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeCostExplanatoryTables |
| 614 |
Implied Table |
Table |
* |
* |
implied:Table |
| 615 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 616 |
Summary of Employee Cost |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutEmployeeCostExplanatory |
| 617 |
1075 - Disclosure - Other expenses (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesExplanatoryTables |
| 618 |
Implied Table |
Table |
* |
* |
implied:Table |
| 619 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 620 |
Summary of Other Expenses |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutOtherExpensesExplanatory |
| 621 |
1076 - Disclosure - Other income/(loss) (net) (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherIncomeLossExplanatoryTables |
| 622 |
Implied Table |
Table |
* |
* |
implied:Table |
| 623 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 624 |
Summary of Other Income/(Loss) (Net) |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutOtherIncomeLossExplanatory |
| 625 |
1077 - Disclosure - Interest expense (net) (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestExpenseExplanatoryTables |
| 626 |
Implied Table |
Table |
* |
* |
implied:Table |
| 627 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 628 |
Summary of Interest Expense (Net) |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutInterestExpenseExplanatory |
| 629 |
1078 - Disclosure - Employee benefits (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeBenefitsExplanatoryTables |
| 630 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 631 |
Defined benefit plans by name [axis] |
Axis |
|
|
ttm:DefinedBenefitPlansByNameAxis |
| 632 |
Defined benefit plans by name [Member] |
Member |
|
|
ttm:DefinedBenefitPlansByNameMember |
| 633 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 634 |
Pension and post retirement medical plans [member] |
Member |
|
|
ttm:PensionAndPostRetirementMedicalPlansMember |
| 635 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 636 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 637 |
Summary of Amounts Recognized in Financial Statements |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory |
| 638 |
Summary of Amount Recognized in Other Comprehensive Income |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfAmountsRecognizedInOtherComprehensiveIncomeDefinedBenefitPlansExplanatory |
| 639 |
Summary of Information for Funded and Unfunded Plans |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfFundedAndUnfundedPlansExplanatory |
| 640 |
Summary of Net Periodic Cost |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDefinedBenefitPlanCostExplanatory |
| 641 |
Summary of Remeasurements (Gains)/Losses Recognized in Other Comprehensive Income |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfRemeasurementsIncludedInOtherComprehensiveLossExplanatory |
| 642 |
Summary of Assumptions Used |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfAssumptionsUsedToDetermineDefinedBenefitObligationsExplanatory |
| 643 |
Summary of Fair Value of Plan Assets by Category |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfAllocationOfFairValueOfPlanAssetsExplanatory |
| 644 |
Summary of Sensitivity Analysis |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory |
| 645 |
Summary of Plan Assets Allocation by Category |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory |
| 646 |
1079 - Disclosure - Capital Management (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatoryTables |
| 647 |
Implied Table |
Table |
* |
* |
implied:Table |
| 648 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 649 |
Summary of Capital |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutCapitalManagementExplanatory |
| 650 |
1080 - Disclosure - Disclosures on financial instruments (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatoryTables |
| 651 |
Statement [table] |
Table |
* |
* |
us-gaap:StatementTable |
| 652 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 653 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 654 |
Trade receivables and finance receivables [Member] |
Member |
|
|
ttm:TradeAndFinanceReceivablesMember |
| 655 |
Measurement [axis] |
Axis |
|
|
ifrs-full:MeasurementAxis |
| 656 |
Aggregated measurement [Member] |
Member |
|
|
ifrs-full:AggregatedMeasurementMember |
| 657 |
Measured at fair value [Member] |
Member |
|
|
ifrs-full:AtFairValueMember |
| 658 |
Not measured at fair value on recurring basis [Member] |
Member |
|
|
ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember |
| 659 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 660 |
Risks [Member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 661 |
Foreign currency exchange rate risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 662 |
Statement [line items] |
LineItems |
|
|
us-gaap:StatementLineItems |
| 663 |
Summary of Carrying Amounts and Fair Value of Each Category of Financial Assets and Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory |
| 664 |
Summary of Fair Value of Financial Assets and Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory |
| 665 |
Summary of Amounts that have been Offset and Amounts that are Available for Offset |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOffsettingOfFinancialAssetsAndFinancialLiabilitiesExplanatory |
| 666 |
Summary of Carrying Amount of Trade Receivables and Finance Receivables Sold Along with Associated Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTransfersOfFinancialAssetsExplanatory |
| 667 |
Summary of Gain (Loss) from Cash Flow Hedges Recognized in Other Comprehensive Income and Income Statement |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory |
| 668 |
Summary of Foreign Currency Exposure |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory |
| 669 |
Summary of Ageing of Trade and Finance Receivables |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:AnalysisOfAgeOfFinancialAssetsThatArePastDueButNotImpaired |
| 670 |
Summary of Contractual Maturities of Financial Liabilities |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfMaturityAnalysisForFinancialLiabilitiesExplanatory |
| 671 |
Summary of Fair Value of Derivative Financial Instruments |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory |
| 672 |
Summary of Changes in Foreign Currency Forward Exchange Contracts and Options Due to 10% Appreciation/Depreciation of Foreign Currency |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfChangesInForeignCurrencyForwardExvhangeContractsAndOptionsDueToTenPercentAppreciationDeprecationOfForeignCurrencyExplanatory |
| 673 |
1081 - Disclosure - Segment reporting (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEntitysReportableSegmentsExplanatoryTables |
| 674 |
Implied Table |
Table |
* |
* |
implied:Table |
| 675 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 676 |
Summary of Segment Reporting |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfOperatingSegmentsExplanatory |
| 677 |
Summary of Information Concerning Principal Geographic Areas |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfGeographicalAreasExplanatory |
| 678 |
Summary of Information About Product Revenues |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfProductsAndServicesExplanatory |
| 679 |
1082 - Disclosure - Related-party transactions (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatoryTables |
| 680 |
Implied Table |
Table |
* |
* |
implied:Table |
| 681 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 682 |
Summary of Related-party Transactions and Balances Included in Consolidated Financial Statements |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory |
| 683 |
Summary of Compensation and Other Transactions with Key Management Personnel |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory |
| 684 |
1083 - Disclosure - Earnings per share ("EPS") (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatoryTables |
| 685 |
Implied Table |
Table |
* |
* |
implied:Table |
| 686 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 687 |
Summary of Earnings Per Share |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:EarningsPerShareExplanatory |
| 688 |
1084 - Disclosure - Assets and liabilities classifed as held for sale (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInformationAboutAssetsAndLiabilitiesOfDisposalGroupsClassifiedAsHeldForSaleExplanatoryTables |
| 689 |
Implied Table |
Table |
* |
* |
implied:Table |
| 690 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 691 |
Disclosure of Detailed Information About Assets and Liabilities Held for Sale |
Concept (Text Block (HTML)) |
For Period |
|
ttm:DisclosureOfDetailedInformationAboutAssetsAndLiabilitiesHeldForSaleExplanatory |
| 692 |
1085 - Disclosure - Subsidiaries (Tables) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestsInSubsidiariesExplanatoryTables |
| 693 |
Implied Table |
Table |
* |
* |
implied:Table |
| 694 |
Text block1 [abstract] |
Abstract |
|
|
ttm:TextBlock1Abstract |
| 695 |
Disclosure of Detailed Information of Percentage of Control in Subsidiaries |
Concept (Text Block (HTML)) |
For Period |
|
us-gaap:ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipDescriptionTextBlock |
| 696 |
1086 - Disclosure - Background and Operations - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureBackgroundAndOperationsAdditionalInformation |
| 697 |
Disclosure of objectives, policies and processes for managing capital [table] |
Table |
* |
* |
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable |
| 698 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 699 |
Entity's total for related parties [Member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 700 |
Tata Sons Limited [Member] |
Member |
|
|
ttm:TataSonsLimitedMember |
| 701 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 702 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 703 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 704 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 705 |
Disclosure of background and operations [line items] |
LineItems |
|
|
ttm:DisclosureOfBackgroundAndOperationsLineItems |
| 706 |
Percentage of shares of Tata Motors Limited owned by Tata Sons Limited |
Concept (Percent) |
For Period |
|
ttm:ProportionOfOwnershipInterest |
| 707 |
1087 - Disclosure - Significant Accounting Policies - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSignificantAccountingPoliciesAdditionalInformation |
| 708 |
Disclosure of summary of significant accounting policies [table] |
Table |
* |
* |
ttm:DisclosureOfSummaryOfSignificantAccountingPoliciesTable |
| 709 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 710 |
Intangible assets [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 711 |
Product development costs [Member] |
Member |
|
|
ttm:ProductDevelopmentCostsMember |
| 712 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 713 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 714 |
Gratuity benefits [Member] |
Member |
|
|
ttm:GratuityBenefitsMember |
| 715 |
Superannuation plan [Member] |
Member |
|
|
ttm:SuperannuationPlanMember |
| 716 |
Bhavishya Kalyan Yojana [Member] |
Member |
|
|
ttm:BhavishyaKalyanYojanaDefinedBenefitPlanMember |
| 717 |
Retrospective application and retrospective restatement [axis] |
Axis |
|
|
ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis |
| 718 |
Currently stated [Member] |
Member |
|
|
ifrs-full:RestatedMember |
| 719 |
Increase (decrease) due to application of IFRS 9 [Member] |
Member |
|
|
ttm:IncreaseDecreaseDueToApplicationOfIFRS9Member |
| 720 |
Retirement plan name [axis] |
Axis |
|
|
ttm:RetirementPlanName1Axis |
| 721 |
Retirement plan name [Domain] |
Member |
|
|
ttm:RetirementPlanName1Domain |
| 722 |
Provident Fund and Family Pension [Member] |
Member |
|
|
ttm:ProvidentFundAndFamilyPensionMember |
| 723 |
Defined benefit plans by name [axis] |
Axis |
|
|
ttm:DefinedBenefitPlansByNameAxis |
| 724 |
Defined benefit plans by name [Member] |
Member |
|
|
ttm:DefinedBenefitPlansByNameMember |
| 725 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 726 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 727 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 728 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 729 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 730 |
Income statement location [axis] |
Axis |
|
|
ttm:IncomeStatementLocation1Axis |
| 731 |
Income statement location [Domain] |
Member |
|
|
ttm:IncomeStatementLocation1Domain |
| 732 |
Revenue [member] |
Member |
|
|
ttm:RevenueMember |
| 733 |
Raw materials, components and consumables [member] |
Member |
|
|
ttm:RawMaterialsComponentsAndConsumablesMember |
| 734 |
Disclosure of summary of significant accounting policies [line items] |
LineItems |
|
|
ttm:DisclosureOfSummaryOfSignificantAccountingPoliciesLineItems |
| 735 |
Percentage of voting power held in associates |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfVotingPowerHeldInAssociate |
| 736 |
Government incentives included in revenues |
Concept (Monetary) |
For Period |
Credit |
ttm:IncentivesReceivedFromGovernments |
| 737 |
Indirect tax incentive |
Concept (Monetary) |
For Period |
Credit |
ttm:IndirectTaxIncentives |
| 738 |
Product warranty claim, timing of outflow period |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:ProductWarrantyClaimTimingOfOutflowPeriod |
| 739 |
Leasing arrangement, timing of outflow period |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:LeasingArrangementTimingOfOutflowPeriod |
| 740 |
Product development cost, amortization period |
Concept (Text/String) |
For Period |
|
ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill |
| 741 |
Assets written off/loss on sale of assets and others (net) |
Concept (Monetary) |
For Period |
Credit |
ttm:AssetsWrittenOffOrLossOnSaleOfAssetsAndOthersNet |
| 742 |
Number of days of salary payable related to gratuity plan |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:NumberOfDaysOfSalaryPayable |
| 743 |
Vesting period related to gratuity plan |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:DefinedBenefitPlanVestingPeriod |
| 744 |
Percentage of annual basic salary for monthly pension benefits after retirement |
Concept (Percent) |
For Period |
|
ttm:PercentageOfAnnualBasicSalaryForMonthlyPensionBenefitsAfterRetirement |
| 745 |
Maximum percentage of salary entitled to benefits |
Concept (Percent) |
For Period |
|
ttm:MaximumPercentageOfSalaryEntitledToBenefits |
| 746 |
Maximum percentage of employees salary contributed to plan |
Concept (Percent) |
For Period |
|
ttm:MaximumPercentageOfEmployeesSalaryContributedToPlan |
| 747 |
Maximum amount of employees salary contributed to plan |
Concept (Monetary) |
For Period |
Debit |
ttm:MaximumAmountOfEmployeesSalaryContributedToPlan |
| 748 |
Percentage of salary drawn eligible for monthly payments |
Concept (Percent) |
For Period |
|
ttm:PercentageOfSalaryDrawnEligibleForMonthlyPayments |
| 749 |
Percentage of the covered employees' salary contributed to defined contribution plan |
Concept (Percent) |
For Period |
|
ttm:PercentageOfCoveredEmployeesSalaryContributedToDefinedContributionPlan |
| 750 |
Number of years of employment eligible for lump sum payment |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:NumberOfYearsOfEmploymentEligibleForLumpSumPayment |
| 751 |
Number of days salary payable for lump sum payment |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:NumberOfDaysSalaryPayableForLumpSumPayment |
| 752 |
Amount available for distribution |
Concept (Monetary) |
As Of |
Credit |
ttm:AmountAvailableForDistribution |
| 753 |
Number of reportable segments |
Concept (Integer) |
For Period |
|
ttm:NumberOfReportableSegments1 |
| 754 |
Foreign exchange gain (loss) which has been reclassified from Hedging reserve to Income Statement |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax |
| 755 |
Provision for finance receivables |
Concept (Monetary) |
For Period |
Debit |
ttm:ProvisionForFinanceReceivables |
| 756 |
Net change in retained earnings by adoption of IFRS 9 |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RetainedEarnings |
| 757 |
Net change in hedge reserve by adoption of IFRS 9 |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfCashFlowHedges |
| 758 |
Net change in cost of hedge reserve by adoption of IFRS 9 |
Concept (Monetary) |
As Of |
Credit |
ttm:CostOfHedgeReserve |
| 759 |
Convenience translation, rate of INR per US$1.00 |
Concept (Decimal) |
As Of |
|
ifrs-full:ClosingForeignExchangeRate |
| 760 |
1088 - Disclosure - Significant Accounting Policies - Summary of Estimated Useful Lives of Assets (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSignificantAccountingPoliciesSummaryOfEstimatedUsefulLivesOfAssets |
| 761 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 762 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 763 |
Plant and equipment [Member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 764 |
Buildings [Member] |
Member |
|
|
ifrs-full:BuildingsMember |
| 765 |
Plant and equipment [Member] |
Member |
|
|
ttm:PlantAndEquipmentMember |
| 766 |
Computers [Member] |
Member |
|
|
ifrs-full:ComputerEquipmentMember |
| 767 |
Vehicles [Member] |
Member |
|
|
ifrs-full:VehiclesMember |
| 768 |
Furniture and fixtures [Member] |
Member |
|
|
ifrs-full:FixturesAndFittingsMember |
| 769 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 770 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 771 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 772 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 773 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 774 |
Estimated useful lives of assets |
Concept (Text/String) |
For Period |
|
ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment |
| 775 |
1089 - Disclosure - Significant Accounting Policies - Summary of Estimated Useful Lives of Intangible Assets (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSignificantAccountingPoliciesSummaryOfEstimatedUsefulLivesOfIntangibleAssets |
| 776 |
Disclosure of detailed information about intangible assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsTable |
| 777 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 778 |
Intangible assets [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 779 |
Patents and technical know-how [Member] |
Member |
|
|
ttm:PatentsAndTechnicalKnowhowMember |
| 780 |
Dealer network [Member] |
Member |
|
|
ttm:DealerNetworkMember |
| 781 |
Intellectual property rights [Member] |
Member |
|
|
ttm:IntellectualPropertyRightsMember |
| 782 |
Software [Member] |
Member |
|
|
ifrs-full:ComputerSoftwareMember |
| 783 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 784 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 785 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 786 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 787 |
Disclosure of detailed information about intangible assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsLineItems |
| 788 |
Estimated useful lives of intangible assets |
Concept (Text/String) |
For Period |
|
ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill |
| 789 |
1090 - Disclosure - Significant Accounting Policies - Summary of Expected Impact on Initial Application of IFRS 9 (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSignificantAccountingPoliciesSummaryOfExpectedImpactOnInitialApplicationOfIFRS9 |
| 790 |
Disclosure of initial application of standards or interpretations [table] |
Table |
* |
* |
ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable |
| 791 |
Retrospective application and retrospective restatement [axis] |
Axis |
|
|
ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis |
| 792 |
Currently stated [Member] |
Member |
|
|
ifrs-full:RestatedMember |
| 793 |
Increase (decrease) due to application of IFRS 9 [Member] |
Member |
|
|
ttm:IncreaseDecreaseDueToApplicationOfIFRS9Member |
| 794 |
Disclosure of initial application of standards or interpretations [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems |
| 795 |
Retained Earnings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RetainedEarnings |
| 796 |
Hedge reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfCashFlowHedges |
| 797 |
Cost of hedge reserve |
Concept (Monetary) |
As Of |
Credit |
ttm:CostOfHedgeReserve |
| 798 |
1091 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureCashAndCashEquivalentsSummaryOfCashAndCashEquivalents |
| 799 |
Implied Table |
Table |
* |
* |
implied:Table |
| 800 |
Cash and cash equivalents [abstract] |
Abstract |
|
|
ifrs-full:CashAndCashEquivalentsAbstract |
| 801 |
Cash balances |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashOnHand |
| 802 |
Balances with banks (including deposits with original maturity of up to three months) |
Concept (Monetary) |
As Of |
Debit |
ttm:BalancesWithBanksIncludingDepositsWithOriginalMaturityOfUpToThreeMonths |
| 803 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 804 |
1092 - Disclosure - Finance Receivables - Summary of Finance Receivables (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinanceReceivablesSummaryOfFinanceReceivables |
| 805 |
Disclosure of financial assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialAssetsTable |
| 806 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 807 |
Carrying amount [Member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 808 |
Cost [Member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 809 |
Allowance for credit losses [Member] |
Member |
|
|
ifrs-full:AllowanceForCreditLossesMember |
| 810 |
Disclosure of financial assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialAssetsLineItems |
| 811 |
Finance receivables |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivables |
| 812 |
Current portion |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivablesCurrent |
| 813 |
Non-current portion |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivablesNoncurrent |
| 814 |
1093 - Disclosure - Finance Receivables - Summary of Changes in Allowance for Credit Losses in Finance Receivables (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinanceReceivablesSummaryOfChangesInAllowanceForCreditLossesInFinanceReceivables |
| 815 |
Disclosure of financial assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialAssetsTable |
| 816 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 817 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 818 |
Finance receivables [Member] |
Member |
|
|
ttm:FinanceReceivables1Member |
| 819 |
Disclosure of financial assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialAssetsLineItems |
| 820 |
Balance at the beginning |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 821 |
Allowances made during the year |
Concept (Monetary) |
For Period |
|
ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets |
| 822 |
Written off |
Concept (Monetary) |
For Period |
Debit |
ttm:WrittenOffAllowanceAccountForCreditLossesOfFinancialAssets |
| 823 |
Balance at the end |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 824 |
1094 - Disclosure - Allowance for Trade and Other Receivables - Summary of Change in Allowances for Trade and Other Receivables (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureAllowanceForTradeAndOtherReceivablesSummaryOfChangeInAllowancesForTradeAndOtherReceivables |
| 825 |
Disclosure of financial assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialAssetsTable |
| 826 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 827 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 828 |
Trade and other receivables [Member] |
Member |
|
|
ttm:TradeAndOtherReceivableMember |
| 829 |
Disclosure of financial assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialAssetsLineItems |
| 830 |
Balance at the beginning |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 831 |
Allowances made during the year |
Concept (Monetary) |
For Period |
|
ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets |
| 832 |
Written off |
Concept (Monetary) |
For Period |
Debit |
ttm:WrittenOffAllowanceAccountForCreditLossesOfFinancialAssets |
| 833 |
Foreign exchange translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets |
| 834 |
Assets classified as held for sale |
Concept (Monetary) |
As Of |
Credit |
ttm:AssetsClassifiedAsHeldForSaleAllowanceAccountForCreditLossesOfFinancialAssets |
| 835 |
Balance at the end |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 836 |
1095 - Disclosure - Investments - Summary of Investments (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsSummaryOfInvestments |
| 837 |
Implied Table |
Table |
* |
* |
implied:Table |
| 838 |
Disclosure of financial assets [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfFinancialAssetsAbstract |
| 839 |
Available-for-sale, at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAvailableforsale |
| 840 |
Unquoted equity investments, at cost |
Concept (Monetary) |
As Of |
Debit |
ttm:UnquotedEquityInvestmentsAtCost |
| 841 |
Unquoted equity investments, at fair value |
Concept (Monetary) |
As Of |
Debit |
ttm:UnquotedEquityInvestmentsAtFairValue |
| 842 |
Loans and receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:LoansAndReceivables |
| 843 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 844 |
1096 - Disclosure - Investments - Summary of Available-for-sale, Financial Assets (Investments) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsSummaryOfAvailableforsaleFinancialAssetsInvestments |
| 845 |
Disclosure of financial assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialAssetsTable |
| 846 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 847 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 848 |
Quoted equity shares [Member] |
Member |
|
|
ttm:QuotedEquitySharesMember |
| 849 |
Mutual funds [Member] |
Member |
|
|
ifrs-full:InvestmentFundsMember |
| 850 |
Disclosure of financial assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialAssetsLineItems |
| 851 |
Available for sale securities |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAvailableforsale |
| 852 |
1097 - Disclosure - Investments - Summary of Current and Non-current Classifications of Investments (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsSummaryOfCurrentAndNoncurrentClassificationsOfInvestments |
| 853 |
Implied Table |
Table |
* |
* |
implied:Table |
| 854 |
Disclosure of financial assets [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfFinancialAssetsAbstract |
| 855 |
Current investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInvestments |
| 856 |
Non-current investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 857 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 858 |
1098 - Disclosure - Other Financial Assets - Current - Summary of Other Financial Assets - Current (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherFinancialAssetsCurrentSummaryOfOtherFinancialAssetsCurrent |
| 859 |
Implied Table |
Table |
* |
* |
implied:Table |
| 860 |
Disclosure of financial assets [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfFinancialAssetsAbstract |
| 861 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentDerivativeFinancialAssets |
| 862 |
Advances and other receivables recoverable in cash (including supplier recoveries) |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentAdvancesAndOtherReceivablesRecoverableInCashIncludingSupplierRecoveries |
| 863 |
Inter corporate deposits |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentInterCorporateDeposits |
| 864 |
Margin money with banks |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentMarginMoneyWithBanks |
| 865 |
Government grant receivables |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentGovernmentGrantReceivables |
| 866 |
Restricted bank deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentRestrictedCashAndCashEquivalents |
| 867 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentFinancialAssets |
| 868 |
1099 - Disclosure - Other Financial Assets - Current - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherFinancialAssetsCurrentAdditionalInformation |
| 869 |
Disclosure of financial assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialAssetsTable |
| 870 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 871 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 872 |
Restricted bank deposits [Member] |
Member |
|
|
ttm:RestrictedDepositsMember |
| 873 |
Disclosure of financial assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialAssetsLineItems |
| 874 |
Restricted bank deposits held as security in relation to interest and repayment of borrowings |
Concept (Monetary) |
As Of |
Debit |
ttm:RestrictedBankDepositsHeldAsSecurity |
| 875 |
Restricted bank deposits pledged till the maturity of the respective borrowings |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities |
| 876 |
1100 - Disclosure - Other Financial Assets (Non-current) - Summary of Other Financial Assets (Non-current) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherFinancialAssetsNoncurrentSummaryOfOtherFinancialAssetsNoncurrent |
| 877 |
Implied Table |
Table |
* |
* |
implied:Table |
| 878 |
Disclosure of financial assets [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfFinancialAssetsAbstract |
| 879 |
Margin money with banks |
Concept (Monetary) |
As Of |
Debit |
ttm:NoncurrentMarginMoneyWithBanks |
| 880 |
Restricted deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentRestrictedCashAndCashEquivalents |
| 881 |
Loans to employees |
Concept (Monetary) |
As Of |
Debit |
ttm:NonCurrentLoansToEmployees |
| 882 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentDerivativeFinancialAssets |
| 883 |
Advance and other receivables recoverable in cash (including supplier recoveries) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentReceivables |
| 884 |
Others |
Concept (Monetary) |
As Of |
Debit |
ttm:OtherNonCurrentFinancialAssetsClassifiedAsOthers |
| 885 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentFinancialAssets |
| 886 |
1101 - Disclosure - Other Financial Assets (Non-current) - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherFinancialAssetsNoncurrentAdditionalInformation |
| 887 |
Disclosure of financial assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialAssetsTable |
| 888 |
Classes of contingent liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfContingentLiabilitiesAxis |
| 889 |
Contingent liabilities [Member] |
Member |
|
|
ifrs-full:ContingentLiabilitiesMember |
| 890 |
Legal cases [Member] |
Member |
|
|
ifrs-full:LegalProceedingsContingentLiabilityMember |
| 891 |
Disclosure of financial assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialAssetsLineItems |
| 892 |
Restricted deposits held in relation to legal cases |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentRestrictedCashAndCashEquivalents |
| 893 |
1102 - Disclosure - Inventories - Summary of Inventories (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesSummaryOfInventories |
| 894 |
Implied Table |
Table |
* |
* |
implied:Table |
| 895 |
Classes of current inventories [abstract] |
Abstract |
|
|
ifrs-full:ClassesOfInventoriesAbstract |
| 896 |
Raw materials, components and consumables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentRawMaterialsAndCurrentProductionSupplies |
| 897 |
Work-in-progress |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:WorkInProgress |
| 898 |
Finished goods |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinishedGoods |
| 899 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 900 |
1103 - Disclosure - Inventories - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesAdditionalInformation |
| 901 |
Disclosure of inventories [table] |
Table |
* |
* |
ttm:DisclosureOfInventoriesTable |
| 902 |
Inventory type [axis] |
Axis |
|
|
ttm:InventoryTypeAxis |
| 903 |
Inventory type [Domain] |
Member |
|
|
ttm:InventoryTypeDomain |
| 904 |
Vehicles sold subject to repurchase arrangements [Member] |
Member |
|
|
ttm:VehiclesSoldSubjectToRepurchaseArrangementsMember |
| 905 |
Disclosure of inventories [line items] |
LineItems |
|
|
ttm:DisclosureOfInventoriesLineItems |
| 906 |
Finished goods |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinishedGoods |
| 907 |
Cost of inventories (including cost of purchased products) recognized as expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CostOfInventoriesRecognisedAsExpenseDuringPeriod |
| 908 |
Inventory write-down expenses |
Concept (Monetary) |
For Period |
|
ifrs-full:InventoryWritedown2011 |
| 909 |
Provision for inventory |
Concept (Monetary) |
For Period |
Debit |
ttm:ProvisionForLossOfInventoryNetOfInsuranceRecoveries |
| 910 |
Inventory insurance recoveries |
Concept (Monetary) |
For Period |
Credit |
ttm:InventoryInsuranceRecoveries |
| 911 |
1104 - Disclosure - Other Current Assets - Summary of Other Current Assets (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherCurrentAssetsSummaryOfOtherCurrentAssets |
| 912 |
Implied Table |
Table |
* |
* |
implied:Table |
| 913 |
Miscellaneous current assets [abstract] |
Abstract |
|
|
ifrs-full:MiscellaneousCurrentAssetsAbstract |
| 914 |
Advances to suppliers and contractors |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentAdvancesToSuppliersAndContractors |
| 915 |
Taxes recoverable, statutory deposits and dues from government |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentTaxesRecoverableStatutoryDepositsAndDuesFromGovernment |
| 916 |
Prepaid expenses |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentPrepaidExpenses |
| 917 |
Others |
Concept (Monetary) |
As Of |
Debit |
ttm:OtherCurrentAssetsClassifiedAsOther |
| 918 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentNonfinancialAssets |
| 919 |
1105 - Disclosure - Other Non-current Assets - Summary of Other Non-current Assets (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherNoncurrentAssetsSummaryOfOtherNoncurrentAssets |
| 920 |
Implied Table |
Table |
* |
* |
implied:Table |
| 921 |
Miscellaneous non-current assets [abstract] |
Abstract |
|
|
ifrs-full:MiscellaneousNoncurrentAssetsAbstract |
| 922 |
Taxes recoverable, statutory deposits and dues from government |
Concept (Monetary) |
As Of |
Debit |
ttm:NoncurrentTaxesRecoverableStatutoryDepositsAndDuesFromGovernment |
| 923 |
Prepaid rentals on operating leases |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentLeasePrepayments |
| 924 |
Prepaid expenses |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentPrepayments |
| 925 |
Others |
Concept (Monetary) |
As Of |
Debit |
ttm:OtherNonCurrentAssetsClassifiedAsOther |
| 926 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentNonfinancialAssets |
| 927 |
1106 - Disclosure - Other Non-current Assets - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherNoncurrentAssetsAdditionalInformation |
| 928 |
Implied Table |
Table |
* |
* |
implied:Table |
| 929 |
Miscellaneous non-current assets [abstract] |
Abstract |
|
|
ifrs-full:MiscellaneousNoncurrentAssetsAbstract |
| 930 |
Pension assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan |
| 931 |
1107 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfPropertyPlantAndEquipment |
| 932 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 933 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 934 |
Plant and equipment [Member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 935 |
Land and buildings [Member] |
Member |
|
|
ifrs-full:LandAndBuildingsMember |
| 936 |
Plant and equipment [Member] |
Member |
|
|
ttm:PlantAndEquipmentMember |
| 937 |
Vehicles [Member] |
Member |
|
|
ifrs-full:VehiclesMember |
| 938 |
Computers [Member] |
Member |
|
|
ifrs-full:ComputerEquipmentMember |
| 939 |
Furniture and fixtures [Member] |
Member |
|
|
ifrs-full:FixturesAndFittingsMember |
| 940 |
Heritage Assets [Member] |
Member |
|
|
ttm:HeritageAssetsMember |
| 941 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 942 |
Carrying amount [Member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 943 |
Cost [Member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 944 |
Accumulated depreciation and amortization [Member] |
Member |
|
|
ifrs-full:AccumulatedDepreciationAndAmortisationMember |
| 945 |
Net carrying amount before capital work-in-progress [Member] |
Member |
|
|
ttm:NetCarryingAmountBeforeCapitalWorkinprogressMember |
| 946 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 947 |
Beginning balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 948 |
Capital work-in-progress |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipmentExpendituresRecognisedForConstructions |
| 949 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment |
| 950 |
Depreciation for the year |
Concept (Monetary) |
For Period |
|
ifrs-full:DepreciationPropertyPlantAndEquipment |
| 951 |
Asset acquired in business combination |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment |
| 952 |
Assets classified as held for sale |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment |
| 953 |
Write down of assets |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment |
| 954 |
Currency translation differences |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment |
| 955 |
Disposal |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DisposalsPropertyPlantAndEquipment |
| 956 |
Ending balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 957 |
1108 - Disclosure - Property, Plant and Equipment - Summary of Net Carrying Amounts of Property, Plant and Equipment under Finance Lease Arrangements (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentSummaryOfNetCarryingAmountsOfPropertyPlantAndEquipmentUnderFinanceLeaseArrangements |
| 958 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 959 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 960 |
Plant and equipment [Member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 961 |
Buildings [Member] |
Member |
|
|
ifrs-full:BuildingsMember |
| 962 |
Plant and equipment [Member] |
Member |
|
|
ttm:PlantAndEquipmentMember |
| 963 |
Computers [Member] |
Member |
|
|
ifrs-full:ComputerEquipmentMember |
| 964 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 965 |
Property, plant and equipment under finance lease arrangements |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:RecognisedFinanceLeaseAsAssets |
| 966 |
1109 - Disclosure - Property, Plant and Equipment - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosurePropertyPlantAndEquipmentAdditionalInformation |
| 967 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 968 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 969 |
Plant and equipment [Member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 970 |
Freehold land [Member] |
Member |
|
|
ttm:FreeholdLandMember |
| 971 |
Voluntary changes in accounting policy [axis] |
Axis |
|
|
ifrs-full:VoluntaryChangesInAccountingPolicyAxis |
| 972 |
Voluntary changes in accounting policy [Member] |
Member |
|
|
ifrs-full:VoluntaryChangesInAccountingPolicyMember |
| 973 |
Accounting estimates, useful lives or depreciation rates, property, plant and equipment [Member] |
Member |
|
|
ttm:AccountingEstimatesUsefulLivesOrDepreciationRatesPropertyPlantAndEquipmentMember |
| 974 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 975 |
Land |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Land |
| 976 |
Additional depreciation due to revision of useful life of certain plant and equipment |
Concept (Monetary) |
For Period |
|
ifrs-full:DepreciationPropertyPlantAndEquipment |
| 977 |
1110 - Disclosure - Leases - Summary of Future Minimum Lease Rental Payments under Non-cancellable Operating Leases and Finance Leases (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureLeasesSummaryOfFutureMinimumLeaseRentalPaymentsUnderNoncancellableOperatingLeasesAndFinanceLeases |
| 978 |
Disclosure of finance lease and operating lease by lessee [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable |
| 979 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 980 |
Aggregated time bands [Member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 981 |
Not later than one year [Member] |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 982 |
Later than one year but not later than five years [Member] |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember |
| 983 |
Later than five years [Member] |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 984 |
Disclosure of finance lease and operating lease by lessee [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems |
| 985 |
Operating, minimum lease payments, minimum lease commitments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease |
| 986 |
Finance, minimum lease payments, minimum lease commitments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:MinimumFinanceLeasePaymentsPayable |
| 987 |
Finance, less: future finance charges |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FutureFinanceChargeOnFinanceLease |
| 988 |
Finance, present value of minimum lease payments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:MinimumFinanceLeasePaymentsPayableAtPresentValue |
| 989 |
Included in the financial statements as: Other financial liabilities - current (refer note 20) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentFinanceLeaseLiabilities |
| 990 |
Included in the financial statements as: Other financial liabilities - non-current (refer note 21) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentFinanceLeaseLiabilities |
| 991 |
Finance lease liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinanceLeaseLiabilities |
| 992 |
1111 - Disclosure - Leases - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureLeasesAdditionalInformation |
| 993 |
Implied Table |
Table |
* |
* |
implied:Table |
| 994 |
Disclosure of finance lease and operating lease by lessee [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract |
| 995 |
Operating lease rent expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:LeaseAndSubleasePaymentsRecognisedAsExpense |
| 996 |
1112 - Disclosure - Goodwill - Summary of Goodwill (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillSummaryOfGoodwill |
| 997 |
Implied Table |
Table |
* |
* |
implied:Table |
| 998 |
Disclosure of reconciliation of changes in goodwill [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillAbstract |
| 999 |
Balance at the beginning |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 1000 |
Classified as held for sale |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DecreaseThroughClassifiedAsHeldForSaleGoodwill |
| 1001 |
Impairment |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill |
| 1002 |
Currency translation differences |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesGoodwill |
| 1003 |
Balance at the end |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 1004 |
1113 - Disclosure - Goodwill - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillAdditionalInformation |
| 1005 |
Disclosure of reconciliation of changes in goodwill [table] |
Table |
* |
* |
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable |
| 1006 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 1007 |
Segments [Member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 1008 |
Tata and other brand vehicles [Member] |
Member |
|
|
ttm:TataAndOtherBrandVehiclesMember |
| 1009 |
Others [Member] |
Member |
|
|
ifrs-full:AllOtherSegmentsMember |
| 1010 |
Cash-generating units [axis] |
Axis |
|
|
ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis |
| 1011 |
Entity's total for cash-generating units [Member] |
Member |
|
|
ifrs-full:EntitysTotalForCashgeneratingUnitsMember |
| 1012 |
Joint operation manufacturing automobiles cash generating unit Member] |
Member |
|
|
ttm:JointOperationManufacturingAutomobilesCashGeneratingUnitMember |
| 1013 |
Classes of intangible assets and goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis |
| 1014 |
Intangible assets and goodwill [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsAndGoodwillMember |
| 1015 |
Goodwill [Member] |
Member |
|
|
ifrs-full:GoodwillMember |
| 1016 |
Disclosure of reconciliation of changes in goodwill [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems |
| 1017 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 1018 |
Estimated cash flows, pre-tax discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections |
| 1019 |
Estimated cash flows, growth rate |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections |
| 1020 |
1114 - Disclosure - Intangible Assets - Summary of Intangible Assets (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureIntangibleAssetsSummaryOfIntangibleAssets |
| 1021 |
Disclosure of detailed information about intangible assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsTable |
| 1022 |
Classes of intangible assets other than goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis |
| 1023 |
Intangible assets [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 1024 |
Software [Member] |
Member |
|
|
ifrs-full:ComputerSoftwareMember |
| 1025 |
Patents and technical know-how [Member] |
Member |
|
|
ttm:PatentsAndTechnicalKnowhowMember |
| 1026 |
Customer related [Member] |
Member |
|
|
ifrs-full:CustomerrelatedIntangibleAssetsMember |
| 1027 |
Intellectual property rights and other intangibles [Member] |
Member |
|
|
ttm:IntellectualPropertyRightsAndOtherIntangiblesMember |
| 1028 |
Product development costs [Member] |
Member |
|
|
ttm:ProductDevelopmentCostsMember |
| 1029 |
Indefinite life trademarks and brands [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember |
| 1030 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 1031 |
Carrying amount [Member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 1032 |
Cost [Member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 1033 |
Accumulated depreciation and amortization [Member] |
Member |
|
|
ifrs-full:AccumulatedDepreciationAndAmortisationMember |
| 1034 |
Net carrying amount before capital work-in-progress [Member] |
Member |
|
|
ttm:NetCarryingAmountBeforeCapitalWorkinprogressMember |
| 1035 |
Capital work-in-progress [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsUnderDevelopmentMember |
| 1036 |
Disclosure of detailed information about intangible assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsLineItems |
| 1037 |
Beginning balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 1038 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill |
| 1039 |
Amortization for the year |
Concept (Monetary) |
For Period |
|
ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill |
| 1040 |
Asset acquired in Business Combination |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill |
| 1041 |
Assest Held for Sale |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill |
| 1042 |
Write down of assets |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill |
| 1043 |
Currency translation differences |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill |
| 1044 |
Fully amortized not in use |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughOtherChangesIntangibleAssetsOtherThanGoodwill |
| 1045 |
Ending balance |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 1046 |
1115 - Disclosure - Intangible Assets - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureIntangibleAssetsAdditionalInformation |
| 1047 |
Disclosure of detailed information about intangible assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfIntangibleAssetsTable |
| 1048 |
Classes of intangible assets and goodwill [axis] |
Axis |
|
|
ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis |
| 1049 |
Intangible assets and goodwill [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsAndGoodwillMember |
| 1050 |
Indefinite life trademarks and brands [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember |
| 1051 |
Income statement location [axis] |
Axis |
|
|
ttm:IncomeStatementLocation1Axis |
| 1052 |
Income statement location [Domain] |
Member |
|
|
ttm:IncomeStatementLocation1Domain |
| 1053 |
Off set against assets [Member] |
Member |
|
|
ttm:OffSetAgainstAssetsMember |
| 1054 |
Other income/(loss) (net) [Member] |
Member |
|
|
ttm:OtherIncomeLossNetMember |
| 1055 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 1056 |
Plant and equipment [Member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 1057 |
Capital work-in-progress [Member] |
Member |
|
|
ifrs-full:ConstructionInProgressMember |
| 1058 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 1059 |
Carrying amount [Member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 1060 |
Capital work-in-progress [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsUnderDevelopmentMember |
| 1061 |
Voluntary changes in accounting policy [axis] |
Axis |
|
|
ifrs-full:VoluntaryChangesInAccountingPolicyAxis |
| 1062 |
Voluntary changes in accounting policy [Member] |
Member |
|
|
ifrs-full:VoluntaryChangesInAccountingPolicyMember |
| 1063 |
Accounting estimates, useful lives or amortisation rates intangible assets other than goodwill [Member] |
Member |
|
|
ttm:AccountingEstimatesUsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwillMember |
| 1064 |
Disclosure of detailed information about intangible assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfIntangibleAssetsLineItems |
| 1065 |
Estimated cash flows, pre-tax discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections |
| 1066 |
Estimated cash flows, growth rate |
Concept (Percent) |
As Of |
|
ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections |
| 1067 |
Capitalized product development expenditure |
Concept (Monetary) |
For Period |
Debit |
ttm:CapitalizedProductDevelopmentExpenditure |
| 1068 |
Additional amortization due to revision of useful life of certain intangible assets |
Concept (Monetary) |
For Period |
|
ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill |
| 1069 |
Write down of assets |
Concept (Monetary) |
For Period |
|
ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill |
| 1070 |
Additions to capital work in progress |
Concept (Monetary) |
For Period |
Debit |
ttm:AdditionsToCapitalWorkInProgress |
| 1071 |
Amount classified as held for sale |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DecreaseThroughClassifiedAsHeldForSaleIntangibleAssetsOtherThanGoodwill |
| 1072 |
Impact of foreign currency translation adjustment gain |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill |
| 1073 |
1116 - Disclosure - Investments in Equity Accounted Investees - Summary of Financial Information of Immaterial Associates Accounted for using the Equity Method (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInEquityAccountedInvesteesSummaryOfFinancialInformationOfImmaterialAssociatesAccountedForUsingTheEquityMethod |
| 1074 |
Disclosure of associates [table] |
Table |
* |
* |
ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesTable |
| 1075 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 1076 |
Entity's total for associates [Member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 1077 |
Immaterial associates [Member] |
Member |
|
|
ifrs-full:AggregatedIndividuallyImmaterialAssociatesMember |
| 1078 |
Disclosure of associates [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems |
| 1079 |
Carrying amount of the Company's interest in associates |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod |
| 1080 |
Company's share of profit/(loss) in associates |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod |
| 1081 |
Company's share of other comprehensive income in associates |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax |
| 1082 |
Company's share of total comprehensive income in associates |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 1083 |
1117 - Disclosure - Investments in Equity Accounted Investees - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInEquityAccountedInvesteesAdditionalInformation |
| 1084 |
Disclosure of significant investments in associates and joint ventures [table] |
Table |
* |
* |
ttm:DisclosureOfSignificantInvestmentsInAssociatesAndJointVenturesTable |
| 1085 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 1086 |
Entity's total for associates [Member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 1087 |
Driveclubservice Pte. Limited [Member] |
Member |
|
|
ttm:DriveclubservicePteLimitedMember |
| 1088 |
Driveclub Limited [Member] |
Member |
|
|
ttm:DriveclubLimitedMember |
| 1089 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 1090 |
Entity's total for joint ventures [Member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 1091 |
Chery Jaguar Land Rover Automotive Co. Limited [member] |
Member |
|
|
ttm:CheryJaguarLandRoverAutomotiveCoLimitedMember |
| 1092 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1093 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 1094 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1095 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1096 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 1097 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 1098 |
Spark 44 (JV) Ltd [member] |
Member |
|
|
ttm:Spark44JvLtdMember |
| 1099 |
Disclosure of significant investments in associates and joint ventures [line items] |
LineItems |
|
|
ttm:DisclosureOfSignificantInvestmentsInAssociatesAndJointVenturesLineItems |
| 1100 |
Fair value of investment in an equity accounted associate for which published price quotation is available |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FairValueOfInvestmentsInAssociatesWherePriceQuotationsPublished |
| 1101 |
Carrying amount of investment in an equity accounted associate for which published price quotation is available |
Concept (Monetary) |
As Of |
Debit |
ttm:CarryingAmountOfInvestmentsInAssociatesForWhichThereAreQuotedMarketPrices |
| 1102 |
Percentage of ordinary share capital purchased |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInAssociate |
| 1103 |
Value of ordinary share capital purchased |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfInterestsInAssociates |
| 1104 |
Percentage of voting rights held |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfVotingPowerHeldInAssociate |
| 1105 |
Holding percentage of ordinary share capital |
Concept (Percent) |
For Period |
|
ttm:PercentageOfCommonSharesHeldByGroup |
| 1106 |
Dividend received by a subsidiary in UK from Chery Jaguar Land Rover Automotive Co. Ltd. |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsReceived |
| 1107 |
Number of shares acquired |
Concept (Shares) |
For Period |
|
ttm:BusinessAcquisitionNumberOfSharesAcquired |
| 1108 |
1118 - Disclosure - Investments in Equity Accounted Investees - Summary of Material Joint Venture (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInEquityAccountedInvesteesSummaryOfMaterialJointVenture |
| 1109 |
Disclosure of joint ventures [table] |
Table |
* |
* |
ifrs-full:DisclosureOfJointVenturesTable |
| 1110 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 1111 |
Entity's total for joint ventures [Member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 1112 |
Chery Jaguar Land Rover Automotive Co. Limited [member] |
Member |
|
|
ttm:CheryJaguarLandRoverAutomotiveCoLimitedMember |
| 1113 |
Disclosure of joint ventures [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfJointVenturesLineItems |
| 1114 |
Principal activity |
Concept (Text/String) |
For Period |
|
ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities |
| 1115 |
Principal place of the business |
Concept (Text/String) |
For Period |
|
ifrs-full:PrincipalPlaceOfBusinessOfJointVenture |
| 1116 |
% holding |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInJointVenture |
| 1117 |
Current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 1118 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssets |
| 1119 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 1120 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 1121 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 1122 |
Current financial liabilities (excluding trade and other payables and provisions) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentFinancialLiabilities |
| 1123 |
Non-current financial liabilities (excluding trade and other payables and provisions) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentFinancialLiabilities |
| 1124 |
Share of net assets of material joint venture |
Concept (Monetary) |
As Of |
Debit |
ttm:ShareOfNetAssetsOfJointVenture |
| 1125 |
Other consolidation adjustments |
Concept (Monetary) |
As Of |
Debit |
ttm:OtherAdjustmentsToCarryingAmountJointVentures |
| 1126 |
Carrying amount of the Company's interest in joint venture |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod |
| 1127 |
Revenue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 1128 |
Net income/(loss) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 1129 |
Other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 1130 |
Total comprehensive income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 1131 |
Depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 1132 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 1133 |
Interest expense (net) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpense |
| 1134 |
Income tax expense/(credit) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1135 |
1119 - Disclosure - Investments in Equity Accounted Investees - Summary of Reconciliation of Financial Information to Carrying Amount of Interest in Joint Venture (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInEquityAccountedInvesteesSummaryOfReconciliationOfFinancialInformationToCarryingAmountOfInterestInJointVenture |
| 1136 |
Disclosure of joint ventures [table] |
Table |
* |
* |
ifrs-full:DisclosureOfJointVenturesTable |
| 1137 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 1138 |
Entity's total for joint ventures [Member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 1139 |
Chery Jaguar Land Rover Automotive Co. Limited [member] |
Member |
|
|
ttm:CheryJaguarLandRoverAutomotiveCoLimitedMember |
| 1140 |
Disclosure of joint ventures [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfJointVenturesLineItems |
| 1141 |
Net assets of the joint venture |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NetAssetsLiabilities |
| 1142 |
Proportion of the Company's interest in joint venture |
Concept (Monetary) |
As Of |
Debit |
ttm:ShareOfNetAssetsOfJointVenture |
| 1143 |
Other consolidation adjustments |
Concept (Monetary) |
As Of |
Debit |
ttm:OtherAdjustmentsToCarryingAmountJointVentures |
| 1144 |
Carrying amount of the Company's interest in joint venture |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod |
| 1145 |
1120 - Disclosure - Investments in Equity Accounted Investees - Summary of Financial Information of Immaterial Joint Ventures Accounted for using the Equity Method (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInEquityAccountedInvesteesSummaryOfFinancialInformationOfImmaterialJointVenturesAccountedForUsingTheEquityMethod |
| 1146 |
Disclosure of joint ventures [table] |
Table |
* |
* |
ifrs-full:DisclosureOfJointVenturesTable |
| 1147 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 1148 |
Entity's total for joint ventures [Member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 1149 |
Immaterial joint ventures [Member] |
Member |
|
|
ifrs-full:AggregatedIndividuallyImmaterialJointVenturesMember |
| 1150 |
Disclosure of joint ventures [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfJointVenturesLineItems |
| 1151 |
Carrying amount of the Company's interest in joint ventures |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod |
| 1152 |
Company's share of profit/(loss) in immaterial joint ventures |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod |
| 1153 |
Company's share of other comprehensive income in immaterial joint ventures |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax |
| 1154 |
Company's share of total comprehensive income in associates |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 1155 |
1121 - Disclosure - Investments in Equity Accounted Investees - Summary of Investments in Equity Accounted Investees (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentsInEquityAccountedInvesteesSummaryOfInvestmentsInEquityAccountedInvestees |
| 1156 |
Disclosure of joint ventures [table] |
Table |
* |
* |
ifrs-full:DisclosureOfJointVenturesTable |
| 1157 |
Associates [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInAssociatesAxis |
| 1158 |
Entity's total for associates [Member] |
Member |
|
|
ifrs-full:EntitysTotalForAssociatesMember |
| 1159 |
Immaterial associates [Member] |
Member |
|
|
ifrs-full:AggregatedIndividuallyImmaterialAssociatesMember |
| 1160 |
Joint ventures [axis] |
Axis |
|
|
ifrs-full:JointVenturesAxis |
| 1161 |
Entity's total for joint ventures [Member] |
Member |
|
|
ifrs-full:EntitysTotalForJointVenturesMember |
| 1162 |
Chery Jaguar Land Rover Automotive Co. Limited [member] |
Member |
|
|
ttm:CheryJaguarLandRoverAutomotiveCoLimitedMember |
| 1163 |
Other adjustments in material joint venture [Member] |
Member |
|
|
ttm:OtherAdjustmentsInMaterialJointVentureMember |
| 1164 |
Immaterial joint ventures [Member] |
Member |
|
|
ifrs-full:AggregatedIndividuallyImmaterialJointVenturesMember |
| 1165 |
Disclosure of joint ventures [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfJointVenturesLineItems |
| 1166 |
Carrying amount in immaterial associates |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod |
| 1167 |
Carrying amount in joint venture |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod |
| 1168 |
Carrying amount of interest in equity accounted investees |
Concept (Monetary) |
As Of |
Debit |
ttm:InvestmentAccountedForUsingEquityMethodCurrentAndNoncurrent |
| 1169 |
Current (held for sale) |
Concept (Monetary) |
As Of |
Debit |
ttm:InvestmentsInEquityAccountedInvesteesHeldForSale |
| 1170 |
Non current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentAccountedForUsingEquityMethod |
| 1171 |
Carrying amount of interest in equity accounted investees |
Concept (Monetary) |
As Of |
Debit |
ttm:InvestmentAccountedForUsingEquityMethodCurrentAndNoncurrent |
| 1172 |
Share of profit/(loss) in immaterial associates |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod |
| 1173 |
Share of profit/(loss) in joint venture |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod |
| 1174 |
Share of profit/(loss) in equity accounted investees |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 1175 |
Share of other comprehensive income in immaterial associates |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossBeforeTax |
| 1176 |
Share of other comprehensive income, currency translation differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossBeforeTax |
| 1177 |
Share of other comprehensive income in equity accounted investees |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodBeforeTax |
| 1178 |
1122 - Disclosure - Income Taxes - Summary of Domestic and Foreign Components of Net Income Before Income Tax (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxesSummaryOfDomesticAndForeignComponentsOfNetIncomeBeforeIncomeTax |
| 1179 |
Disclosure of geographical areas [table] |
Table |
* |
* |
ifrs-full:DisclosureOfGeographicalAreasTable |
| 1180 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1181 |
Geographical areas [Member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1182 |
India [Member] |
Member |
|
|
ifrs-full:CountryOfDomicileMember |
| 1183 |
Other than India [Member] |
Member |
|
|
ifrs-full:ForeignCountriesMember |
| 1184 |
Disclosure of geographical areas [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfGeographicalAreasLineItems |
| 1185 |
Net income before income taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 1186 |
1123 - Disclosure - Income Taxes - Summary of Domestic and Foreign Components of Income Tax Expense (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxesSummaryOfDomesticAndForeignComponentsOfIncomeTaxExpense |
| 1187 |
Disclosure of geographical areas [table] |
Table |
* |
* |
ifrs-full:DisclosureOfGeographicalAreasTable |
| 1188 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1189 |
Geographical areas [Member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1190 |
India [Member] |
Member |
|
|
ifrs-full:CountryOfDomicileMember |
| 1191 |
Other than India [Member] |
Member |
|
|
ifrs-full:ForeignCountriesMember |
| 1192 |
Disclosure of geographical areas [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfGeographicalAreasLineItems |
| 1193 |
Current taxes |
Abstract |
|
|
ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract |
| 1194 |
Current taxes |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentTaxExpenseIncome |
| 1195 |
Deferred taxes |
Abstract |
|
|
ifrs-full:DeferredTaxExpenseIncomeAbstract |
| 1196 |
Deferred taxes |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss |
| 1197 |
Income tax expense reported |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1198 |
1124 - Disclosure - Income Taxes - Summary of Reconciliation of Estimated Income Tax to Income Tax Expense (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxesSummaryOfReconciliationOfEstimatedIncomeTaxToIncomeTaxExpense |
| 1199 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1200 |
Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract |
| 1201 |
Income before income taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 1202 |
Income tax expense at tax rates applicable to individual entities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxExpenseIncomeAtApplicableTaxRate |
| 1203 |
Additional deduction for patent, research and product development cost |
Concept (Monetary) |
For Period |
Credit |
ttm:TaxEffectOfAdditionalDeductionForPatentResearchAndProductDevelopmentCost |
| 1204 |
Items (net) not deductible for tax/not liable to tax: |
Abstract |
|
|
ttm:ItemsNetNotDeductibleForTaxNotLiableToTaxAbstract |
| 1205 |
- foreign currency (gain)/loss relating to loans and deposits (net) |
Concept (Monetary) |
For Period |
Debit |
ttm:TaxRateEffectOfNonDeductibleForeignCurrencyGainLossRelatingToLoansAndDepositsNet |
| 1206 |
- interest, loss on conversion option and other expenses relating to borrowings for investment |
Concept (Monetary) |
For Period |
Debit |
ttm:TaxRateEffectOfNonDeductibleInterestLossOnConversionOptionAndOtherExpensesRelatingToBorrowingsForInvestment |
| 1207 |
- Dividend from subsidiaries, joint operations, equity accounted investees and available-for-sale investments |
Concept (Monetary) |
For Period |
Debit |
ttm:TaxRateEffectOfNonDeductibleDividendFromSubsidiariesJointOperationsEquityAccountedInvesteesAndAvailableForSaleInvestments |
| 1208 |
Undistributed earnings of subsidiaries, joint operations and equity accounted investees |
Concept (Monetary) |
For Period |
Debit |
ttm:TaxRateEffectOfUndistributedEarningsOfSubsidiariesJointOperationsAndEquityAccountedInvestees |
| 1209 |
Deferred tax assets not recognized because realization is not probable |
Concept (Monetary) |
For Period |
Debit |
ttm:TaxRateEffectOfDeferredTaxAssetsNotRecognizedBecauseRealizationNotProbable |
| 1210 |
Utilization/credit of unrecognized tax losses, unabsorbed depreciation and other tax benefits |
Concept (Monetary) |
For Period |
Credit |
ttm:TaxRateEffectOfUtilizationCreditOfUnrecognizedTaxLossesUnabsorbedDepreciationAndOtherTaxBenefits |
| 1211 |
Profit on sale of business by a subsidiary to another subsidiary |
Concept (Monetary) |
For Period |
Debit |
ttm:TaxRateEffectOfProfitOnSaleOfBusinessBySubsidiaryToAnotherSubsidiary |
| 1212 |
Profit on sale of investments to wholly owned subsidiaries |
Concept (Monetary) |
For Period |
Debit |
ttm:TaxRateEffectOfProfitOnSaleOfInvestmentsToWhollyOwnedSubsidiaries |
| 1213 |
Tax on share of (profit)/loss of equity accounted investees (net) |
Concept (Monetary) |
For Period |
Debit |
ttm:TaxRateEffectOfTaxOnShareOfProfitLossOfEquityAccountedInvesteesNet |
| 1214 |
Impact of change in statutory tax rates |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxEffectFromChangeInTaxRate |
| 1215 |
Others |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome |
| 1216 |
Income tax expense reported |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 1217 |
1125 - Disclosure - Income Taxes - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxesAdditionalInformation |
| 1218 |
Disclosure of income taxes [table] |
Table |
* |
* |
ttm:DisclosureOfIncomeTaxesTable |
| 1219 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1220 |
Aggregated time bands [Member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1221 |
Indefinitely [Member] |
Member |
|
|
ttm:IndefiniteMember |
| 1222 |
Specified period [Member] |
Member |
|
|
ttm:SpecifiedPeriodMember |
| 1223 |
Scenario [Axis] |
Axis |
|
|
us-gaap:StatementScenarioAxis |
| 1224 |
Scenario, Unspecified [Domain] |
Member |
|
|
us-gaap:ScenarioUnspecifiedDomain |
| 1225 |
Scenario, Plan [Member] |
Member |
|
|
us-gaap:ScenarioPlanMember |
| 1226 |
Geographical [Axis] |
Axis |
|
|
us-gaap:StatementGeographicalAxis |
| 1227 |
Geographical [Domain] |
Member |
|
|
us-gaap:SegmentGeographicalDomain |
| 1228 |
United Kingdom [Member] |
Member |
|
|
country:GB |
| 1229 |
United States of America [Member] |
Member |
|
|
country:US |
| 1230 |
Disclosure of income taxes [line items] |
LineItems |
|
|
ttm:DisclosureOfIncomeTaxesLineItems |
| 1231 |
Tax rate |
Concept (Percent) |
For Period |
|
ifrs-full:ApplicableTaxRate |
| 1232 |
Impact of change in statutory tax rates, deferred tax assets |
Concept (Monetary) |
For Period |
Credit |
ttm:TaxCutsAndJobsActOf2017ChangeInTaxRateIncreaseDecreaseInNetDeferredTaxAssets |
| 1233 |
Unrecognized deferred tax assets |
Concept (Monetary) |
As Of |
|
ifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised |
| 1234 |
Unrecognized deferred tax liability on undistributed profits of certain subsidiaries |
Concept (Monetary) |
As Of |
|
ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures |
| 1235 |
1126 - Disclosure - Income Taxes - Summary of Significant Components of Deferred Tax Assets and Liabilities (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxesSummaryOfSignificantComponentsOfDeferredTaxAssetsAndLiabilities |
| 1236 |
Changes in deferred tax assets and liabilities [table] |
Table |
* |
* |
ttm:ChangesInDeferredTaxAssetsAndLiabilitiesTable |
| 1237 |
Temporary difference, unused tax losses and unused tax credits [axis] |
Axis |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis |
| 1238 |
Temporary difference, unused tax losses and unused tax credits [Member] |
Member |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember |
| 1239 |
Property, plant and equipment [Member] |
Member |
|
|
ttm:DeferredTaxLiabilitiesPropertyPlantAndEquipmentMember |
| 1240 |
Intangible assets [Member] |
Member |
|
|
ifrs-full:IntangibleAssetsOtherThanGoodwillMember |
| 1241 |
Investments accounted for using equity method [member] |
Member |
|
|
ifrs-full:InvestmentsAccountedForUsingEquityMethodMember |
| 1242 |
Fair valuation of retained interest in a subsidiary subsequent to disposal of controlling equity interest [Member] |
Member |
|
|
ttm:FairValuationOfRetainedInterestSubsidiarySubsequentToDisposalOfControllingEquityInterestMember |
| 1243 |
Derivative financial instruments [Member] |
Member |
|
|
ttm:DerivativeFinancialInstrumentsLiabilities1Member |
| 1244 |
Others [Member] |
Member |
|
|
ttm:OtherDeferredTaxLiabilitiesMember |
| 1245 |
Deferred tax liabilities [Member] |
Member |
|
|
ttm:DeferredTaxLiabilitiesMember |
| 1246 |
Unabsorbed Depreciation [Member] |
Member |
|
|
ttm:UnabsorbedDepreciationMember |
| 1247 |
Business loss carry forwards [Member] |
Member |
|
|
ttm:BusinessLossCarryForwardsMember |
| 1248 |
Expenses deductible - provisions, allowances for doubtful receivables and others [Member] |
Member |
|
|
ttm:ExpensesDeductibleProvisionsAllowancesForDoubtfulReceivablesAndOthersMember |
| 1249 |
Compensated absences and retirement benefits [Member] |
Member |
|
|
ttm:CompensatedAbsencesAndRetirementBenefitsMember |
| 1250 |
Minimum alternate tax carry-forward [Member] |
Member |
|
|
ttm:MinimumAlternateTaxCarryForwardMember |
| 1251 |
Property, plant and equipment [Member] |
Member |
|
|
ttm:DeferredTaxAssetPropertyPlantAndEquipmentMember |
| 1252 |
Derivative financial instruments [Member] |
Member |
|
|
ttm:DerivativeFinancialInstrumentsAssets1Member |
| 1253 |
Unrealized profit on inventory [Member] |
Member |
|
|
ttm:UnrealizedProfitOnInventoryMember |
| 1254 |
Others [Member] |
Member |
|
|
ttm:OtherDeferredTaxAssetsMember |
| 1255 |
Deferred tax assets [Member] |
Member |
|
|
ttm:DeferredTaxAssetMember |
| 1256 |
Changes in deferred tax assets and liabilities [line items] |
LineItems |
|
|
ttm:ChangesInDeferredTaxAssetsAndLiabilitiesLineItems |
| 1257 |
Opening balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 1258 |
Recognized in profit or loss |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss |
| 1259 |
Recognized in/reclassified from other comprehensive income |
Concept (Monetary) |
For Period |
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome |
| 1260 |
Classified as held for sale |
Concept (Monetary) |
For Period |
Credit |
ttm:IncreaseDecreaseThroughClassifiedAsHeldForSaleDeferredTaxLiabilityAsset |
| 1261 |
Closing balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 1262 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 1263 |
Deferred tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 1264 |
Undistributed earnings in subsidiaries, joint operations and equity accounted investees, reversed on dividend distribution by subsidiaries |
Concept (Monetary) |
For Period |
Credit |
ttm:ReversalOnDividendDistributionBySubsidiaries |
| 1265 |
1127 - Disclosure - Income Taxes - Summary of Unrecognized Deferred Tax Assets Expire Unutilized based on Year of Origination (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxesSummaryOfUnrecognizedDeferredTaxAssetsExpireUnutilizedBasedOnYearOfOrigination |
| 1266 |
Disclosure of temporary difference, unused tax losses and unused tax credits [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable |
| 1267 |
Tax year [axis] |
Axis |
|
|
ttm:TaxYearAxis |
| 1268 |
Tax year [Domain] |
Member |
|
|
ttm:TaxYearDomain |
| 1269 |
2019 [Member] |
Member |
|
|
ttm:YearOneMember |
| 1270 |
2020 [Member] |
Member |
|
|
ttm:YearTwoMember |
| 1271 |
2021 [Member] |
Member |
|
|
ttm:YearThreeMember |
| 1272 |
2022 [Member] |
Member |
|
|
ttm:YearFourMember |
| 1273 |
2023 [Member] |
Member |
|
|
ttm:YearFiveMember |
| 1274 |
Thereafter [Member] |
Member |
|
|
ttm:YearSixAndThereafterMember |
| 1275 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems |
| 1276 |
Unrecognized deferred tax assets |
Concept (Monetary) |
As Of |
|
ifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised |
| 1277 |
1128 - Disclosure - Short-term Borrowings and Current Portion of Long-term Debt - Summary of Short-term Borrowings and Current Portion of Long-term Debt (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureShorttermBorrowingsAndCurrentPortionOfLongtermDebtSummaryOfShorttermBorrowingsAndCurrentPortionOfLongtermDebt |
| 1278 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1279 |
Borrowings [abstract] |
Abstract |
|
|
ifrs-full:BorrowingsAbstract |
| 1280 |
Commercial paper |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentCommercialPapersIssuedAndCurrentPortionOfNoncurrentCommercialPapersIssued |
| 1281 |
Loans from banks/financial institutions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLoansReceivedAndCurrentPortionOfNoncurrentLoansReceived |
| 1282 |
Inter-corporate deposits |
Concept (Monetary) |
As Of |
Credit |
ttm:CurrentInterCorporateDepositsLiabilities |
| 1283 |
Current portion of long-term debt (refer note 19) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentPortionOfLongtermBorrowings |
| 1284 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1285 |
1129 - Disclosure - Long-term Debt - Summary of Long-term Debt (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureLongtermDebtSummaryOfLongtermDebt |
| 1286 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1287 |
Borrowings [abstract] |
Abstract |
|
|
ifrs-full:BorrowingsAbstract |
| 1288 |
Non-convertible debentures |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NotesAndDebenturesIssued |
| 1289 |
Collateralized debt obligations |
Concept (Monetary) |
As Of |
Credit |
ttm:CollateralizedDebtObligations |
| 1290 |
Buyers credit from banks at floating interest rate |
Concept (Monetary) |
As Of |
Credit |
ttm:BuyersCreditFromBanksAtFloatingInterestRate |
| 1291 |
Loan from banks/financial institutions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LoansReceived |
| 1292 |
Senior notes |
Concept (Monetary) |
As Of |
Credit |
ttm:SeniorNotes1 |
| 1293 |
Others |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherBorrowings |
| 1294 |
Total |
Concept (Monetary) |
As Of |
Credit |
ttm:CurrentAndNoncurrentPortionOfLongtermBorrowings |
| 1295 |
Less: current portion (refer note 18) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentPortionOfLongtermBorrowings |
| 1296 |
Long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 1297 |
1130 - Disclosure - Long-term Debt - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureLongtermDebtAdditionalInformation |
| 1298 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 1299 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 1300 |
Borrowings by name [Member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 1301 |
Buyers credit from banks at floating interest rate [Member] |
Member |
|
|
ttm:LoansFromBanksAtFloatingInterestRateMember |
| 1302 |
Non-convertible debentures [Member] |
Member |
|
|
ttm:NonConvertibleDebenturesMember |
| 1303 |
variable rate 1 [axis] |
Axis |
|
|
ttm:VariableRate1Axis |
| 1304 |
Variable rate [member] |
Member |
|
|
ttm:VariableRateMember |
| 1305 |
Marginal cost lending rate [member] |
Member |
|
|
ttm:MarginalCostLendingRateMember |
| 1306 |
London interbank offered rate (LIBOR) 1 [member] |
Member |
|
|
ttm:LondonInterbankOfferedRateLIBOR1Member |
| 1307 |
Liabilities arising from financing activities [axis] |
Axis |
|
|
ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis |
| 1308 |
Liabilities arising from financing activities [member] |
Member |
|
|
ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember |
| 1309 |
Long-term borrowings [member] |
Member |
|
|
ifrs-full:LongtermBorrowingsMember |
| 1310 |
Loans from banks/financial institutions (short-term) [member] |
Member |
|
|
ifrs-full:ShorttermBorrowingsMember |
| 1311 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1312 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 1313 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1314 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1315 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 1316 |
Interest rate |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsInterestRate |
| 1317 |
Maturity |
Concept (Text/String) |
For Period |
|
ifrs-full:BorrowingsMaturity |
| 1318 |
Loan amount |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 1319 |
Commercial paper issued interest rate |
Concept (Percent) |
For Period |
|
ttm:InterestRateOnCommercialPaper |
| 1320 |
1131 - Disclosure - Long-term Debt - Summary of Details of Tranches of Senior Notes Listed on the Euro MTF Market (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureLongtermDebtSummaryOfDetailsOfTranchesOfSeniorNotesListedOnTheEuroMTFMarket |
| 1321 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 1322 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 1323 |
Entity's total for subsidiaries [Member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 1324 |
Jaguar Land Rover Automotive Plc [Member] |
Member |
|
|
ttm:JaguarLandRoverAutomotivePlcMember |
| 1325 |
Entity listings, exchange [axis] |
Axis |
|
|
dei:EntityListingsExchangeAxis |
| 1326 |
Exchange [Domain] |
Member |
|
|
dei:ExchangeDomain |
| 1327 |
Luxembourg Stock Exchange [Member] |
Member |
|
|
exch:XLUX |
| 1328 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 1329 |
Borrowings by name [Member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 1330 |
5.625% senior notes [Member] |
Member |
|
|
ttm:FivePointSixTwoFivePercentageSeniorNotesMember |
| 1331 |
3.875% senior notes [Member] |
Member |
|
|
ttm:ThreePointEightSevenFivePercentageSeniorNotesMember |
| 1332 |
5.000% senior notes [Member] |
Member |
|
|
ttm:FivePercentageSeniorNotesMember |
| 1333 |
3.500% senior notes [Member] |
Member |
|
|
ttm:ThreePointFivePercentageSeniorNotesMember |
| 1334 |
4.125% senior notes [Member] |
Member |
|
|
ttm:FourPointOneTwoFivePercentageSeniorNotesMember |
| 1335 |
4.250% senior notes [Member] |
Member |
|
|
ttm:FourPointTwoFivePercentageSeniorNotesMember |
| 1336 |
2.75% senior notes [Member] |
Member |
|
|
ttm:TwoPointSevenFivePercentageSeniorNotesMember |
| 1337 |
2.2% senior notes [Member] |
Member |
|
|
ttm:TwoPointTwoPercentageSeniorNotesMember |
| 1338 |
Four point five zero zero senior notes [member] |
Member |
|
|
ttm:FourPointFiveZeroZeroSeniorNotesMember |
| 1339 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 1340 |
Issued on |
Concept (Text/String) |
For Period |
|
ttm:BorrowingsIssuedDate |
| 1341 |
Currency |
Concept (Text/String) |
For Period |
|
ifrs-full:BorrowingsOriginalCurrency |
| 1342 |
Initial Principal amounts |
Concept (Monetary) |
As Of |
|
ifrs-full:NotionalAmount |
| 1343 |
Outstanding Principal amounts |
Concept (Monetary) |
As Of |
Credit |
ttm:BorrowingsPrincipalAmount |
| 1344 |
Outstanding |
Concept (Monetary) |
As Of |
Credit |
ttm:SeniorNotes1 |
| 1345 |
Interest rate |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsInterestRate |
| 1346 |
Redeemable on |
Concept (Text/String) |
For Period |
|
ifrs-full:BorrowingsMaturity |
| 1347 |
1132 - Disclosure - Long-term Debt - Summary of Details of Tranches of Senior Notes Listed on the SGX-ST Market (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureLongtermDebtSummaryOfDetailsOfTranchesOfSeniorNotesListedOnTheSGXSTMarket |
| 1348 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 1349 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 1350 |
Entity's total for subsidiaries [Member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 1351 |
TML Holdings Pte Ltd [Member] |
Member |
|
|
ttm:TMLHoldingsPteLtdMember |
| 1352 |
Entity listings, exchange [axis] |
Axis |
|
|
dei:EntityListingsExchangeAxis |
| 1353 |
Exchange [Domain] |
Member |
|
|
dei:ExchangeDomain |
| 1354 |
Singapore Stock Exchange [Member] |
Member |
|
|
exch:XSES |
| 1355 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 1356 |
Borrowings by name [Member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 1357 |
5.750% senior notes 1 [Member] |
Member |
|
|
ttm:FivePointSevenFivePercentageSeniorNotesOneMember |
| 1358 |
5.750% senior notes 2 [Member] |
Member |
|
|
ttm:FivePointSevenFivePercentagesEniorNotesTwoMember |
| 1359 |
4.625% senior notes [Member] |
Member |
|
|
ttm:FourPointSixTwoFivePercentageSeniorNotesMember |
| 1360 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 1361 |
Issued on |
Concept (Text/String) |
For Period |
|
ttm:BorrowingsIssuedDate |
| 1362 |
Currency |
Concept (Text/String) |
For Period |
|
ifrs-full:BorrowingsOriginalCurrency |
| 1363 |
Initial Principal amounts |
Concept (Monetary) |
As Of |
|
ifrs-full:NotionalAmount |
| 1364 |
Outstanding Principal amounts |
Concept (Monetary) |
As Of |
Credit |
ttm:BorrowingsPrincipalAmount |
| 1365 |
Outstanding |
Concept (Monetary) |
As Of |
Credit |
ttm:SeniorNotes1 |
| 1366 |
Interest rate |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsInterestRate |
| 1367 |
Redeemable on |
Concept (Text/String) |
For Period |
|
ifrs-full:BorrowingsMaturity |
| 1368 |
1133 - Disclosure - Long-term Debt - Summary of Details of Tranches of Senior Notes Listed on the SGX-ST Market (Parenthetical) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureLongtermDebtSummaryOfDetailsOfTranchesOfSeniorNotesListedOnTheSGXSTMarketParenthetical |
| 1369 |
Disclosure of detailed information about borrowings [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable |
| 1370 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 1371 |
Borrowings by name [Member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 1372 |
4.625% senior notes [Member] |
Member |
|
|
ttm:FourPointSixTwoFivePercentageSeniorNotesMember |
| 1373 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 1374 |
Non-adjusting events after reporting period [Member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 1375 |
Repayment Of Long Term Borrowings [member] |
Member |
|
|
ttm:RepaymentOfLongTermBorrowingsMember |
| 1376 |
Disclosure of detailed information about borrowings [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems |
| 1377 |
Repayment of borrowings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfNoncurrentBorrowings |
| 1378 |
Interest rate premium percentage |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsAdjustmentToInterestRateBasis |
| 1379 |
1134 - Disclosure - Other Financial Liabilities - Current - Summary of Other Current Financial Liabilities (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherFinancialLiabilitiesCurrentSummaryOfOtherCurrentFinancialLiabilities |
| 1380 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1381 |
Categories of current financial liabilities [abstract] |
Abstract |
|
|
ifrs-full:CategoriesOfCurrentFinancialLiabilitiesAbstract |
| 1382 |
Liability towards vehicles sold under repurchase arrangements |
Concept (Monetary) |
As Of |
Credit |
ttm:LiabilityTowardsVehiclesSoldUnderRepurchaseArrangementsCurrent |
| 1383 |
Interest accrued but not due |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentInterestPayable |
| 1384 |
Lease liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentFinanceLeaseLiabilities |
| 1385 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentDerivativeFinancialLiabilities |
| 1386 |
Deferred payment liability |
Concept (Monetary) |
As Of |
Credit |
ttm:DeferredPaymentLiabilityCurrent |
| 1387 |
Unclaimed matured fixed deposits |
Concept (Monetary) |
As Of |
Credit |
ttm:UnclaimedMaturedFixedDepositsCurrent |
| 1388 |
Others |
Concept (Monetary) |
As Of |
Credit |
ttm:OtherCurrentFinancialLiabilitiesOther |
| 1389 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentFinancialLiabilities |
| 1390 |
1135 - Disclosure - Other Financial Liabilities - Non-current - Summary of Other Financial Liabilities Non-current (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherFinancialLiabilitiesNoncurrentSummaryOfOtherFinancialLiabilitiesNoncurrent |
| 1391 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1392 |
Categories of non-current financial liabilities [abstract] |
Abstract |
|
|
ifrs-full:CategoriesOfNoncurrentFinancialLiabilitiesAbstract |
| 1393 |
Lease liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentFinanceLeaseLiabilities |
| 1394 |
Derivative financial instruments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentDerivativeFinancialLiabilities |
| 1395 |
Liability towards employee separation scheme |
Concept (Monetary) |
As Of |
Credit |
ttm:LiabilityTowardsEmployeeSeparationSchemeNoncurrent |
| 1396 |
Retention money, security deposits and others |
Concept (Monetary) |
As Of |
Credit |
ttm:RetentionMoneySecurityDepositsAndOthersNoncurrent |
| 1397 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentFinancialLiabilities |
| 1398 |
1136 - Disclosure - Provisions - Summary of Provisions (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsSummaryOfProvisions |
| 1399 |
Disclosure of other provisions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfOtherProvisionsTable |
| 1400 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 1401 |
Other provisions [Member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 1402 |
Employee benefits obligations [Member] |
Member |
|
|
ttm:EmploymentBenefitsProvisionMember |
| 1403 |
Product warranty [Member] |
Member |
|
|
ifrs-full:WarrantyProvisionMember |
| 1404 |
Legal and product liability [Member] |
Member |
|
|
ttm:LegalAndProductLiabilityProvisionMember |
| 1405 |
Provision for residual risk [Member] |
Member |
|
|
ttm:ProvisionForResidualRiskMember |
| 1406 |
Provision for environmental liability [Member] |
Member |
|
|
ifrs-full:OtherEnvironmentRelatedProvisionMember |
| 1407 |
Employee related and other provisions [Member] |
Member |
|
|
ttm:EmployeeRelatedAndOtherProvisionMember |
| 1408 |
Other provisions [Member] |
Member |
|
|
ifrs-full:MiscellaneousOtherProvisionsMember |
| 1409 |
Disclosure of other provisions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfOtherProvisionsLineItems |
| 1410 |
Current |
Abstract |
|
|
ifrs-full:CurrentProvisionsAbstract |
| 1411 |
Current provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisions |
| 1412 |
Non-current |
Abstract |
|
|
ifrs-full:NoncurrentProvisionsAbstract |
| 1413 |
Non-current provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisions |
| 1414 |
Balance at the beginning |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 1415 |
Provision made during the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdditionalProvisionsOtherProvisions |
| 1416 |
Provision used during the year |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProvisionUsedOtherProvisions |
| 1417 |
Impact of discounting |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions |
| 1418 |
Impact of foreign exchange translation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions |
| 1419 |
Liability for assets classified as held for sale |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale |
| 1420 |
Balance at the end |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 1421 |
Current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherShorttermProvisions |
| 1422 |
Non-current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherLongtermProvisions |
| 1423 |
1137 - Disclosure - Provisions - Summary of Provisions (Parenthetical) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureProvisionsSummaryOfProvisionsParenthetical |
| 1424 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1425 |
Disclosure of other provisions [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfOtherProvisionsAbstract |
| 1426 |
Estimated recovery from supplies |
Concept (Monetary) |
For Period |
Credit |
ttm:EstimatedRecoveryFromSupplies |
| 1427 |
1138 - Disclosure - Other Current Liabilities - Summary of Other Current Liabilities (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherCurrentLiabilitiesSummaryOfOtherCurrentLiabilities |
| 1428 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1429 |
Miscellaneous current liabilities [abstract] |
Abstract |
|
|
ifrs-full:MiscellaneousCurrentLiabilitiesAbstract |
| 1430 |
Advances received from customers |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentAdvances |
| 1431 |
Statutory dues |
Concept (Monetary) |
As Of |
Credit |
ttm:StatutoryDuesPayableCurrent |
| 1432 |
Deferred revenue |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredIncomeClassifiedAsCurrent |
| 1433 |
Others |
Concept (Monetary) |
As Of |
Credit |
ttm:OtherCurrentLiabilitiesClassifiedAsOther |
| 1434 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentNonfinancialLiabilities |
| 1435 |
1139 - Disclosure - Other Liabilities - Non-current - Summary of Other Non-current Liabilities (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherLiabilitiesNoncurrentSummaryOfOtherNoncurrentLiabilities |
| 1436 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1437 |
Miscellaneous non-current liabilities [abstract] |
Abstract |
|
|
ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract |
| 1438 |
Employee benefit obligations |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan |
| 1439 |
Deferred revenue |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredIncomeClassifiedAsNoncurrent |
| 1440 |
Others |
Concept (Monetary) |
As Of |
Credit |
ttm:OtherNoncurrentLiabilitiesClassifiedAsOther |
| 1441 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentNonfinancialLiabilities |
| 1442 |
1140 - Disclosure - Equity - Summary of Movement of Number of Shares and Share Capital (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEquitySummaryOfMovementOfNumberOfSharesAndShareCapital |
| 1443 |
Disclosure of classes of share capital [table] |
Table |
* |
* |
ifrs-full:DisclosureOfClassesOfShareCapitalTable |
| 1444 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1445 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1446 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 1447 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 1448 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1449 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 1450 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1451 |
Disclosure of classes of share capital [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfClassesOfShareCapitalLineItems |
| 1452 |
Shares at the beginning |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 1453 |
Shares issued pursuant to Rights issue |
Concept (Shares) |
For Period |
|
ttm:NumberOfSharesIssuedPursuantToRightsIssue |
| 1454 |
Shares issued |
Concept (Shares) |
For Period |
|
ttm:NumberOfSharesIssuedDuringPeriod |
| 1455 |
Shares at the end |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 1456 |
Shares at the beginning |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IssuedCapital |
| 1457 |
Shares issued pursuant to Rights issue |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IssueOfEquity |
| 1458 |
Shares issued |
Concept (Monetary) |
For Period |
Credit |
ttm:IssueOfSharesHeldInAbeyance |
| 1459 |
Shares at the end |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IssuedCapital |
| 1460 |
1141 - Disclosure - Equity - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEquityAdditionalInformation |
| 1461 |
Disclosure of classes of share capital [table] |
Table |
* |
* |
ifrs-full:DisclosureOfClassesOfShareCapitalTable |
| 1462 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1463 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1464 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 1465 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 1466 |
Convertible cumulative preference shares [Member] |
Member |
|
|
ttm:ConvertibleCumulativePreferenceSharesMember |
| 1467 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 1468 |
Non-adjusting events after reporting period [Member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 1469 |
Subsequent Event [Member] |
Member |
|
|
us-gaap:SubsequentEventMember |
| 1470 |
Disclosure of classes of share capital [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfClassesOfShareCapitalLineItems |
| 1471 |
Authorized share capital |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesAuthorised |
| 1472 |
Par value per share |
Concept (Share) |
As Of |
|
ifrs-full:ParValuePerShare |
| 1473 |
Number of shares issued includes partly paid up shares |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesIssuedButNotFullyPaid |
| 1474 |
Number of votes for every ten 'A' Ordinary share held |
Concept (Integer) |
For Period |
|
ttm:NumberOfVotes |
| 1475 |
Number of 'A' Ordinary share needed for one vote |
Concept (Shares) |
For Period |
|
ttm:NumberOfShareNeededForOneVote |
| 1476 |
Percentage points more than the aggregate rate of dividend declared on Ordinary shares that 'A' Ordinary shareholders are entitled to |
Concept (Percent) |
For Period |
|
ttm:PercentagePointsMoreThanAggregateRateOfDividendDeclared |
| 1477 |
1142 - Disclosure - Other Components of Equity - Summary of Movement of Currency Translation Reserve (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherComponentsOfEquitySummaryOfMovementOfCurrencyTranslationReserve |
| 1478 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 1479 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 1480 |
Equity [Member] |
Member |
|
|
ifrs-full:EquityMember |
| 1481 |
Currency translation reserve [Member] |
Member |
|
|
ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember |
| 1482 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 1483 |
Balance at the beginning |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1484 |
Exchange differences arising on translating the net assets of foreign operations (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax |
| 1485 |
Net change in translation reserve - equity accounted investees (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax |
| 1486 |
Balance at the end |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1487 |
1143 - Disclosure - Other Components of Equity - Summary of Movement of Available-for-sale Investments Reserve (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherComponentsOfEquitySummaryOfMovementOfAvailableforsaleInvestmentsReserve |
| 1488 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 1489 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 1490 |
Equity [Member] |
Member |
|
|
ifrs-full:EquityMember |
| 1491 |
Available-for-sale investments [Member] |
Member |
|
|
ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember |
| 1492 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 1493 |
Balance at the beginning |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1494 |
Gain/(loss) arising on revaluation of available-for-sale investments (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsBeforeTax |
| 1495 |
Income tax relating to gain/loss arising on revaluation of available-for-sale investments (net), where applicable |
Concept (Monetary) |
For Period |
Debit |
ttm:IncomeTaxRelatingToGainsLossesOnRemeasuringAvailableForSaleFinancialAssets |
| 1496 |
Cumulative (gain)/loss reclassified to profit or loss on available-for-sale investments (net) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsBeforeTax |
| 1497 |
Income tax relating to cumulative gain/loss reclassified to profit or loss on available-for-sale investments (net), where applicable |
Concept (Monetary) |
For Period |
Credit |
ttm:IncomeTaxRelatingToReclassificationAdjustmentsForAvailableforsaleFinancialAssets |
| 1498 |
Net change in share of available-for-sale investments reserves - equity accounted investees (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax |
| 1499 |
Balance at the end |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1500 |
1144 - Disclosure - Other Components of Equity - Summary of Movement of Hedging Reserve (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherComponentsOfEquitySummaryOfMovementOfHedgingReserve |
| 1501 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 1502 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 1503 |
Equity [Member] |
Member |
|
|
ifrs-full:EquityMember |
| 1504 |
Hedging reserve [Member] |
Member |
|
|
ifrs-full:ReserveOfCashFlowHedgesMember |
| 1505 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 1506 |
Balance at the beginning |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1507 |
Gain/(loss) recognized on cash flow hedges |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax |
| 1508 |
Income tax relating to gain/loss recognized on cash flow hedges |
Concept (Monetary) |
For Period |
Debit |
ttm:IncomeTaxRelatingToGainsLossesOnCashFlowHedges |
| 1509 |
(Gain)/loss reclassified to profit or loss |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax |
| 1510 |
Income tax relating to gain/loss reclassified to profit or loss |
Concept (Monetary) |
For Period |
Credit |
ttm:IncomeTaxRelatingToReclassificationAdjustmentsForCashFlowHedges |
| 1511 |
Balance at the end |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1512 |
1145 - Disclosure - Other Components of Equity - Summary of Other Components of Equity (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherComponentsOfEquitySummaryOfOtherComponentsOfEquity |
| 1513 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1514 |
Statement of changes in equity [abstract] |
Abstract |
|
|
ifrs-full:StatementOfChangesInEquityAbstract |
| 1515 |
Currency translation reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfExchangeDifferencesOnTranslation |
| 1516 |
Available-for-sale investments reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssets |
| 1517 |
Hedging reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfCashFlowHedges |
| 1518 |
Total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherEquityInterest |
| 1519 |
1146 - Disclosure - Notes to Reserves and Dividends - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureNotesToReservesAndDividendsAdditionalInformation |
| 1520 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 1521 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 1522 |
Entity's total for subsidiaries [Member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 1523 |
Tata Daewoo Commercial Vehicle Company Limited [Member] |
Member |
|
|
ttm:TataDaewooCommercialVehicleCompanyLimitedMember |
| 1524 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 1525 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 1526 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 1527 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 1528 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 1529 |
Debenture Redemption Reserve percentage |
Concept (Percent) |
For Period |
|
ttm:DebentureRedemptionReservePercentage |
| 1530 |
Minimum percentage of net profit amount required to be transferred to reserve fund before declaring any dividend |
Concept (Percent) |
For Period |
|
ttm:MinimumPercentageOfNetProfitAmountTransferToReserveFundBeforeDividendDeclared |
| 1531 |
Minimum percentage of cash dividend declared appropriation to legal reserve |
Concept (Percent) |
For Period |
|
ttm:MinimumPercentageOfCashDividendDeclaredAppropriationToLegalReserve |
| 1532 |
Percentage of capital stock required until no longer required to appropriate cash dividend declared to legal reserve |
Concept (Percent) |
For Period |
|
ttm:PercentageOfCapitalStockRequiredUntilNoLongerRequiredToAppropriateCashDividendDeclaredToLegalReserve |
| 1533 |
Dividend declared |
Concept (Share) |
For Period |
|
ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare |
| 1534 |
Dividends per share |
Concept (Share) |
For Period |
|
ifrs-full:DividendsRecognisedAsDistributionsToOwnersPerShare |
| 1535 |
Par value per share |
Concept (Share) |
As Of |
|
ifrs-full:ParValuePerShare |
| 1536 |
1147 - Disclosure - Employee Cost - Summary of Employee Cost (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeCostSummaryOfEmployeeCost |
| 1537 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1538 |
Classes of employee benefits expense [abstract] |
Abstract |
|
|
ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract |
| 1539 |
Salaries, wages and welfare expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:WagesAndSalaries |
| 1540 |
Contribution to provident fund and other funds |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherLongtermBenefits |
| 1541 |
Total |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EmployeeBenefitsExpense |
| 1542 |
1148 - Disclosure - Employee Cost - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeCostAdditionalInformation |
| 1543 |
Disclosure of terms and conditions of share-based payment arrangement [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 1544 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 1545 |
Share-based payment arrangements [Member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 1546 |
Long Term Incentive Plan [Member] |
Member |
|
|
ttm:LongtermIncentivePlanMember |
| 1547 |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 1548 |
Vesting period of underlying shares |
Concept (Text/String) |
For Period |
|
ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement |
| 1549 |
Expensed in relation to LTIP |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees |
| 1550 |
1149 - Disclosure - Other Expenses - Summary of Other Expenses (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherExpensesSummaryOfOtherExpenses |
| 1551 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1552 |
Expenses by nature [abstract] |
Abstract |
|
|
ifrs-full:ExpenseByNatureAbstract |
| 1553 |
Stores, spare parts and tools consumed |
Concept (Monetary) |
For Period |
Debit |
ttm:StoresSparePartsAndToolsConsumedExpense |
| 1554 |
Freight and transportation expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TransportationExpense |
| 1555 |
Research and product development cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ResearchAndDevelopmentExpense |
| 1556 |
Warranty and product liability expenses |
Concept (Monetary) |
For Period |
Debit |
ttm:WarrantyAndProductLiabilityExpenses |
| 1557 |
Allowance for trade and other receivables, and finance receivables |
Concept (Monetary) |
For Period |
Debit |
ttm:AllowanceForTradeAndOtherReceivablesAndFinanceReceivables |
| 1558 |
Works operation and other expenses |
Concept (Monetary) |
For Period |
Debit |
ttm:WorksOperationAndOtherExpenses |
| 1559 |
Repairs to building and plant and machinery |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:RepairsAndMaintenanceExpense |
| 1560 |
Processing charges |
Concept (Monetary) |
For Period |
Debit |
ttm:ProcessingExpenses |
| 1561 |
Power and fuel |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FuelAndEnergyExpense |
| 1562 |
Insurance |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InsuranceExpense |
| 1563 |
Publicity |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdvertisingExpense |
| 1564 |
Total |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherExpenseByNature |
| 1565 |
1150 - Disclosure - Other Income/(Loss) (Net) - Summary of Other Income/(Loss) (Net) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherIncomeLossNetSummaryOfOtherIncomeLossNet |
| 1566 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1567 |
Disclosure Of Other Income Loss[Abstract] |
Abstract |
|
|
ttm:DisclosureOfOtherIncomeLossAbstract |
| 1568 |
Miscellaneous income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:MiscellaneousOtherOperatingIncome |
| 1569 |
Gain/(Loss) on change in fair value of commodity derivatives |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives |
| 1570 |
Dividend income and income on mutual funds |
Concept (Monetary) |
For Period |
Credit |
ttm:DividendIncomeAndIncomeOnMutualFunds |
| 1571 |
Gain/(loss) on sale, change in fair value of available-for-sale investments (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnAvailableforsaleFinancialAssets |
| 1572 |
Total |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherGainsLosses |
| 1573 |
1151 - Disclosure - Interest Expense (Net) - Summary of Interest Expense (Net) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestExpenseNetSummaryOfInterestExpenseNet |
| 1574 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1575 |
Interest costs [abstract] |
Abstract |
|
|
ifrs-full:InterestCostsAbstract |
| 1576 |
Gross interest expense |
Concept (Monetary) |
For Period |
|
ifrs-full:InterestCostsIncurred |
| 1577 |
Less: Interest capitalized |
Concept (Monetary) |
For Period |
|
ifrs-full:InterestCostsCapitalised |
| 1578 |
Interest expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpense |
| 1579 |
1152 - Disclosure - Interest Expense (Net) - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInterestExpenseNetAdditionalInformation |
| 1580 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1581 |
Interest costs [abstract] |
Abstract |
|
|
ifrs-full:InterestCostsAbstract |
| 1582 |
Weighted average rate for capitalization of interest relating to general borrowings |
Concept (Percent) |
For Period |
|
ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation |
| 1583 |
1153 - Disclosure - Employee Benefits - Summary of Change in Defined Benefit Obligations for Pension and Post Retirement Medical Plans (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfChangeInDefinedBenefitObligationsForPensionAndPostRetirementMedicalPlans |
| 1584 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1585 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1586 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1587 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1588 |
Post retirement medical benefits [Member] |
Member |
|
|
ttm:PostRetirementMedicalBenefitsMember |
| 1589 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 1590 |
Net defined benefit liability (asset) [Member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 1591 |
Present value of defined benefit obligation [Member] |
Member |
|
|
ifrs-full:PresentValueOfDefinedBenefitObligationMember |
| 1592 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1593 |
Beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1594 |
Current service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1595 |
Interest cost (income) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1596 |
Remeasurements |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1597 |
Actuarial (gains)/losses arising from changes in demographic assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset |
| 1598 |
Actuarial (gains)/losses arising from changes in financial assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 1599 |
Actuarial (gains) / losses arising from changes in experience adjustments on plan liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset |
| 1600 |
Benefits paid |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1601 |
Benefits paid directly by employer |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:BenefitsPaidOrPayable |
| 1602 |
Past service cost-Plan amendments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostAndGainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset |
| 1603 |
End of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1604 |
1154 - Disclosure - Employee Benefits - Summary of Change in Plan Assets for Pension and Post Retirement Medical Plans (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfChangeInPlanAssetsForPensionAndPostRetirementMedicalPlans |
| 1605 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1606 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1607 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1608 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1609 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 1610 |
Net defined benefit liability (asset) [Member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 1611 |
Plan assets [Member] |
Member |
|
|
ifrs-full:PlanAssetsMember |
| 1612 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1613 |
Beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1614 |
Interest cost (income) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1615 |
Remeasurements |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1616 |
Return on plan assets, (excluding amount included in net Interest cost) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 1617 |
Employer's contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset |
| 1618 |
Benefits paid |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1619 |
End of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1620 |
1155 - Disclosure - Employee Benefits - Summary of Amount Recognized in the Balance Sheet for Pension and Post Retirement Medical Plans (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAmountRecognizedInTheBalanceSheetForPensionAndPostRetirementMedicalPlans |
| 1621 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1622 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1623 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1624 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1625 |
Post retirement medical benefits [Member] |
Member |
|
|
ttm:PostRetirementMedicalBenefitsMember |
| 1626 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1627 |
Present value of defined benefit obligation |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DefinedBenefitObligationAtPresentValue |
| 1628 |
Fair value of plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 1629 |
Net liability |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:SurplusDeficitInPlan |
| 1630 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan |
| 1631 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RecognisedLiabilitiesDefinedBenefitPlan |
| 1632 |
Liabilities for assets classified as held for sale |
Concept (Monetary) |
As Of |
Credit |
ttm:LiabilitiesRelatedToAssetsClassifiedAsHeldForSale |
| 1633 |
Net liability |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:SurplusDeficitInPlan |
| 1634 |
1156 - Disclosure - Employee Benefits - Summary of Amount Recognized in Other Comprehensive Income for Pension and Post Retirement Medical Plans (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAmountRecognizedInOtherComprehensiveIncomeForPensionAndPostRetirementMedicalPlans |
| 1635 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1636 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1637 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1638 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1639 |
Post retirement medical benefits [Member] |
Member |
|
|
ttm:PostRetirementMedicalBenefitsMember |
| 1640 |
Reserves within equity [axis] |
Axis |
|
|
ifrs-full:ReservesWithinEquityAxis |
| 1641 |
Reserves [Member] |
Member |
|
|
ifrs-full:OtherReservesMember |
| 1642 |
Reserve of remeasurements of defined benefit plans [member] |
Member |
|
|
ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlansMember |
| 1643 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1644 |
Remeasurements (gains)/losses |
Concept (Monetary) |
As Of |
Debit |
ttm:RemeasurementsGainsLossesRecognizedInOtherComprehensiveIncome |
| 1645 |
Remeasurements (gains)/losses |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlans |
| 1646 |
1157 - Disclosure - Employee Benefits - Summary of Information for Funded and Unfunded Plans for Pension and Post Retirement Medical Plans (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfInformationForFundedAndUnfundedPlansForPensionAndPostRetirementMedicalPlans |
| 1647 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1648 |
Defined benefit plans funding status [axis] |
Axis |
|
|
ttm:DefinedBenefitPlansFundingStatusAxis |
| 1649 |
Defined benefit plans funding status [Member] |
Member |
|
|
ttm:DefinedBenefitPlansFundingStatusMember |
| 1650 |
Funded plans [Member] |
Member |
|
|
ttm:FundedPlansMember |
| 1651 |
Unfunded plans [Member] |
Member |
|
|
ttm:UnfundedPlansMember |
| 1652 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1653 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1654 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1655 |
Post retirement medical benefits [Member] |
Member |
|
|
ttm:PostRetirementMedicalBenefitsMember |
| 1656 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 1657 |
Net defined benefit liability (asset) [Member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 1658 |
Defined benefit obligation in excess of plan assets [Member] |
Member |
|
|
ttm:DefinedBenefitObligationInExcessOfPlanAssetsMember |
| 1659 |
Defined benefit obligation less than plan assets [Member] |
Member |
|
|
ttm:DefinedBenefitObligationLessThanPlanAssetsMember |
| 1660 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1661 |
Defined benefit obligation |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DefinedBenefitObligationAtPresentValue |
| 1662 |
Fair value of plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 1663 |
1158 - Disclosure - Employee Benefits - Summary of Net Pension and Post Retirement Medical Cost (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfNetPensionAndPostRetirementMedicalCost |
| 1664 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1665 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1666 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1667 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1668 |
Post retirement medical benefits [Member] |
Member |
|
|
ttm:PostRetirementMedicalBenefitsMember |
| 1669 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1670 |
Service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1671 |
Past Service cost-Plan amendment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 1672 |
Net interest cost / (income) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1673 |
Net periodic cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 1674 |
1159 - Disclosure - Employee Benefits - Summary of Other Changes in Plan Assets and Benefit Obligation Recognized in Other Comprehensive Income (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfOtherChangesInPlanAssetsAndBenefitObligationRecognizedInOtherComprehensiveIncome |
| 1675 |
Disclosure of net defined benefit liability (asset) [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable |
| 1676 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1677 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1678 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1679 |
Post retirement medical benefits [Member] |
Member |
|
|
ttm:PostRetirementMedicalBenefitsMember |
| 1680 |
Disclosure of net defined benefit liability (asset) [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems |
| 1681 |
Remeasurements |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1682 |
Return on plan assets, (excluding amount included in net Interest expense) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 1683 |
Actuarial (gains)/losses arising from changes in demographic assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset |
| 1684 |
Actuarial (gains)/losses arising from changes in financial assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 1685 |
Actuarial (gains)/losses arising from changes in experience adjustments on plan liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset |
| 1686 |
Total recognized in other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 1687 |
Total recognized in income statement and statement of other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ttm:DefinedBenefitPlansRecognizedInIncomeStatementAndOtherComprehensiveIncome |
| 1688 |
1160 - Disclosure - Employee Benefits - Summary of Assumptions Used in Accounting for Pension and Post Retirement Medical Plans (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAssumptionsUsedInAccountingForPensionAndPostRetirementMedicalPlans |
| 1689 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1690 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1691 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1692 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1693 |
Post retirement medical benefits [Member] |
Member |
|
|
ttm:PostRetirementMedicalBenefitsMember |
| 1694 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1695 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 1696 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1697 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1698 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1699 |
Discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfDiscountRates |
| 1700 |
Rate of increase in compensation level of covered employees |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases |
| 1701 |
Increase in health care cost |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfMedicalCostTrendRates |
| 1702 |
1161 - Disclosure - Employee Benefits - Summary of Fair Value of Company's Pension Plan Assets (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfFairValueOfCompanysPensionPlanAssets |
| 1703 |
Disclosure of fair value of plan assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFairValueOfPlanAssetsTable |
| 1704 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1705 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1706 |
Pension benefits [Member] |
Member |
|
|
ttm:PensionBenefitsMember |
| 1707 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1708 |
All levels of fair value hierarchy [Member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1709 |
Level 1 [Member] |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 1710 |
Level 2 and 3 of fair value hierarchy [Member] |
Member |
|
|
ifrs-full:Level2And3OfFairValueHierarchyMember |
| 1711 |
Disclosure of fair value of plan assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems |
| 1712 |
Cash and cash equivalents |
Concept (Percent) |
As Of |
|
ttm:CashAndCashEquivalentsPercentageContributedToFairValueOfPlanAssets |
| 1713 |
Debt instruments |
Concept (Percent) |
As Of |
|
ttm:DebtInstrumentsPercentageContributedToFairValueOfPlanAssets |
| 1714 |
Equity instruments (quoted) |
Concept (Percent) |
As Of |
|
ttm:EquityInstrumentsPercentageContributedToFairValueOfPlanAssets |
| 1715 |
Deposits with Insurance companies |
Concept (Percent) |
As Of |
|
ttm:InvestmentFundsPercentageContributedToFairValueOfPlanAssets |
| 1716 |
Total |
Concept (Percent) |
As Of |
|
ttm:PlanAssetsPercentageOfFairValueOfPlanAssets |
| 1717 |
1162 - Disclosure - Employee Benefits - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsAdditionalInformation |
| 1718 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1719 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 1720 |
Non-adjusting events after reporting period [Member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 1721 |
Remeasurements [member] |
Member |
|
|
ttm:RemeasurementsMember |
| 1722 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1723 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1724 |
Pension and post retirement medical plans [member] |
Member |
|
|
ttm:PensionAndPostRetirementMedicalPlansMember |
| 1725 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1726 |
Jaguar Pension Plan [Member] |
Member |
|
|
ttm:JaguarPensionPlanMember |
| 1727 |
Jaguar Executive Pension Plan [Member] |
Member |
|
|
ttm:JaguarExecutivePensionPlanMember |
| 1728 |
Land Rover Pension Scheme [Member] |
Member |
|
|
ttm:LandRoverPensionSchemeMember |
| 1729 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1730 |
Gender type [axis] |
Axis |
|
|
ttm:GenderTypeAxis |
| 1731 |
Gender type [Domain] |
Member |
|
|
ttm:GenderTypeDomain |
| 1732 |
Males [Member] |
Member |
|
|
ttm:MalesMember |
| 1733 |
Females [Member] |
Member |
|
|
ttm:FemalesMember |
| 1734 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1735 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 1736 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1737 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1738 |
Weighted Average [Member] |
Member |
|
|
ifrs-full:WeightedAverageMember |
| 1739 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1740 |
All levels of fair value hierarchy [Member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1741 |
Level 1 [Member] |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 1742 |
Level 2 [Member] |
Member |
|
|
ifrs-full:Level2OfFairValueHierarchyMember |
| 1743 |
Level 3 [Member] |
Member |
|
|
ifrs-full:Level3OfFairValueHierarchyMember |
| 1744 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1745 |
Weighted average duration of defined benefit obligation |
Concept (Decimal) |
For Period |
|
ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation |
| 1746 |
Expected contributions to funded plans in Fiscal 2018 |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan |
| 1747 |
Mortality assumptions scaling factor |
Concept (Percent) |
As Of |
|
ttm:MortalityAssumptionsScalingFactor |
| 1748 |
Allowance for long term improvements, per annum |
Concept (Percent) |
For Period |
|
ttm:AllowanceForLongTermImprovements |
| 1749 |
Percentage of fair value of plan assets |
Concept (Percent) |
As Of |
|
ttm:PlanAssetsPercentageOfFairValueOfPlanAssets |
| 1750 |
Intended period to eliminate the pension scheme funding deficits |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:IntendedPeriodToEliminateTheFundingDeficits |
| 1751 |
Contribution rate for defined benefit accrual |
Concept (Percent) |
For Period |
|
ttm:ContributionRateForDefinedBenefitAccrual |
| 1752 |
Past service credit |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 1753 |
Expected net periodic pension cost |
Concept (Monetary) |
For Period |
Debit |
ttm:DefinedBenefitPlanExpectedNetPeriodicPensionCost |
| 1754 |
Contribution to defined contribution plans |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans |
| 1755 |
1163 - Disclosure - Employee Benefits - Summary of Sensitivity Analysis for Pension and Post Retirement Medical Plans (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfSensitivityAnalysisForPensionAndPostRetirementMedicalPlans |
| 1756 |
Disclosure of sensitivity analysis for actuarial assumptions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable |
| 1757 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1758 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1759 |
Pension and post retirement medical plans [member] |
Member |
|
|
ttm:PensionAndPostRetirementMedicalPlansMember |
| 1760 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 1761 |
Actuarial assumptions [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 1762 |
Discount rate [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 1763 |
Salary escalation rate [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember |
| 1764 |
Health care cost [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfMedicalCostTrendRatesMember |
| 1765 |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems |
| 1766 |
Change in assumption, increase |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption |
| 1767 |
Change in assumption, decrease |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption |
| 1768 |
Impact on defined benefit obligation, due to increase in assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 1769 |
Impact on defined benefit obligation, due to decrease in assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 1770 |
Impact on service cost and interest cost, due to increase in assumption |
Concept (Monetary) |
As Of |
Credit |
ttm:IncreaseDecreaseInImpactOnServiceCostAndInterestCostDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 1771 |
Impact on service cost and interest cost, due to decrease in assumption |
Concept (Monetary) |
As Of |
Credit |
ttm:IncreaseDecreaseInImpactOnServiceCostAndInterestCostDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 1772 |
1164 - Disclosure - Employee Benefits - Summary of Change in Defined Benefit Obligation for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfChangeInDefinedBenefitObligationForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1773 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1774 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1775 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1776 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1777 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 1778 |
Net defined benefit liability (asset) [Member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 1779 |
Present value of defined benefit obligation [Member] |
Member |
|
|
ifrs-full:PresentValueOfDefinedBenefitObligationMember |
| 1780 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1781 |
Beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1782 |
Service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1783 |
Interest cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1784 |
Remeasurements |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1785 |
Actuarial (gains) / losses arising from changes in financial assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 1786 |
Actuarial (gains) / losses arising from changes in experience adjustments on plan liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset |
| 1787 |
Benefits paid from plan assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1788 |
Benefits paid directly by employer |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:BenefitsPaidOrPayable |
| 1789 |
Foreign currency translation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 1790 |
End of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1791 |
1165 - Disclosure - Employee Benefits - Summary of Change in Plan Assets for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfChangeInPlanAssetsForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1792 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1793 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1794 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1795 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1796 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 1797 |
Net defined benefit liability (asset) [Member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 1798 |
Plan assets [Member] |
Member |
|
|
ifrs-full:PlanAssetsMember |
| 1799 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1800 |
Beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1801 |
Interest cost (income) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1802 |
Remeasurements |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1803 |
Return on plan assets, (excluding amount included in net Interest expense) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 1804 |
Employer's contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset |
| 1805 |
Benefits paid |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1806 |
Foreign currency translation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 1807 |
End of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1808 |
1166 - Disclosure - Employee Benefits - Summary of Amount Recognized in the Balance Sheet for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAmountRecognizedInTheBalanceSheetForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1809 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1810 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1811 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1812 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1813 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1814 |
Present value of defined benefit obligation |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DefinedBenefitObligationAtPresentValue |
| 1815 |
Fair value of plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 1816 |
Net liability |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:SurplusDeficitInPlan |
| 1817 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan |
| 1818 |
1167 - Disclosure - Employee Benefits - Summary of Amount Recognized in Other Comprehensive Income for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAmountRecognizedInOtherComprehensiveIncomeForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1819 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1820 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1821 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1822 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1823 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1824 |
Remeasurements (gains)/losses |
Concept (Monetary) |
As Of |
Debit |
ttm:RemeasurementsGainsLossesRecognizedInOtherComprehensiveIncome |
| 1825 |
Total amount recognized in other comprehensive income |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlans |
| 1826 |
1168 - Disclosure - Employee Benefits - Summary of Net Severance Indemnity Cost for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfNetSeveranceIndemnityCostForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1827 |
Disclosure of net defined benefit liability (asset) [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable |
| 1828 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1829 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1830 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1831 |
Disclosure of net defined benefit liability (asset) [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems |
| 1832 |
Service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1833 |
Net interest cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1834 |
Net periodic cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 1835 |
1169 - Disclosure - Employee Benefits - Summary of Other Changes in Plan Assets and Benefit Obligation Recognized in Other Comprehensive Income for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfOtherChangesInPlanAssetsAndBenefitObligationRecognizedInOtherComprehensiveIncomeForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1836 |
Disclosure of net defined benefit liability (asset) [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable |
| 1837 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1838 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1839 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1840 |
Disclosure of net defined benefit liability (asset) [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems |
| 1841 |
Remeasurements |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1842 |
Return on plan assets, (excluding amount included in net Interest expense) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 1843 |
Actuarial (gains)/losses arising from changes in financial assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 1844 |
Actuarial (gains)/losses arising from changes in experience adjustments on plan liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset |
| 1845 |
Actuarial (gains)/losses arising from changes in demographic assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset |
| 1846 |
Total recognized in other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 1847 |
Total recognized in income statement and statement of other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ttm:DefinedBenefitPlansRecognizedInIncomeStatementAndOtherComprehensiveIncome |
| 1848 |
1170 - Disclosure - Employee Benefits - Summary of Assumptions Used in Accounting for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAssumptionsUsedInAccountingForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1849 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1850 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1851 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1852 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1853 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1854 |
Discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfDiscountRates |
| 1855 |
Rate of increase in compensation level of covered employees |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases |
| 1856 |
1171 - Disclosure - Employee Benefits - Summary of Sensitivity Analysis for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfSensitivityAnalysisForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1857 |
Disclosure of sensitivity analysis for actuarial assumptions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable |
| 1858 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1859 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1860 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1861 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 1862 |
Actuarial assumptions [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 1863 |
Discount rate [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 1864 |
Salary escalation rate [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember |
| 1865 |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems |
| 1866 |
Change in assumption, increase |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption |
| 1867 |
Change in assumption, decrease |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption |
| 1868 |
Impact on scheme liabilities, due to increase in assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 1869 |
Impact on scheme liabilities, due to decrease in assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 1870 |
Impact on service cost and interest cost, due to increase in assumption |
Concept (Monetary) |
As Of |
Credit |
ttm:IncreaseDecreaseInImpactOnServiceCostAndInterestCostDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 1871 |
Impact on service cost and interest cost, due to decrease in assumption |
Concept (Monetary) |
As Of |
Credit |
ttm:IncreaseDecreaseInImpactOnServiceCostAndInterestCostDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 1872 |
1172 - Disclosure - Employee Benefits - Summary of Plan Assets Allocation by Category for Tata Daewoo Commercial Vehicles Limited Severance Indemnity Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfPlanAssetsAllocationByCategoryForTataDaewooCommercialVehiclesLimitedSeveranceIndemnityPlan |
| 1873 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1874 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1875 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1876 |
Severance indemnity of Tata Daewoo Commercial Vehicles Limited [Member] |
Member |
|
|
ttm:SeveranceIndemnityOfTataDaewooCommercialVehiclesLimitedMember |
| 1877 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1878 |
Deposit with banks |
Concept (Percent) |
As Of |
|
ttm:DepositsPercentageContributedToFairValueOfPlanAssets |
| 1879 |
1173 - Disclosure - Employee Benefits - Summary of Change in Defined Benefit Obligation for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfChangeInDefinedBenefitObligationForJaguarLandRoverLimitedPensionPlan |
| 1880 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1881 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1882 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1883 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1884 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 1885 |
Net defined benefit liability (asset) [Member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 1886 |
Present value of defined benefit obligation [Member] |
Member |
|
|
ifrs-full:PresentValueOfDefinedBenefitObligationMember |
| 1887 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1888 |
Beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1889 |
Service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1890 |
Interest cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1891 |
Remeasurements |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1892 |
Actuarial (gains)/losses arising from changes in demographic assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset |
| 1893 |
Actuarial (gains)/losses arising from changes in financial assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 1894 |
Actuarial (gains)/losses arising from changes in experience adjustments on plan liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset |
| 1895 |
Past service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 1896 |
Plan settlement |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset |
| 1897 |
Benefits paid |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1898 |
Member contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset |
| 1899 |
Foreign currency translation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 1900 |
End of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1901 |
1174 - Disclosure - Employee Benefits - Summary of Change in Plan Assets for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfChangeInPlanAssetsForJaguarLandRoverLimitedPensionPlan |
| 1902 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1903 |
Net defined benefit liability (asset) [axis] |
Axis |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetAxis |
| 1904 |
Net defined benefit liability (asset) [Member] |
Member |
|
|
ifrs-full:NetDefinedBenefitLiabilityAssetMember |
| 1905 |
Plan assets [Member] |
Member |
|
|
ifrs-full:PlanAssetsMember |
| 1906 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1907 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1908 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1909 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1910 |
Beginning of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1911 |
Interest cost (income) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1912 |
Remeasurements gains / (losses) |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1913 |
Return on plan assets, (excluding amount included in net Interest expense) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 1914 |
Employer's contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset |
| 1915 |
Members contributions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset |
| 1916 |
Plan settlement |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset |
| 1917 |
Benefits paid |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset |
| 1918 |
Expenses paid |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset |
| 1919 |
Foreign currency translation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset |
| 1920 |
End of the year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1921 |
1175 - Disclosure - Employee Benefits - Summary of Amount Recognized in the Balance Sheet for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAmountRecognizedInTheBalanceSheetForJaguarLandRoverLimitedPensionPlan |
| 1922 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1923 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1924 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1925 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1926 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1927 |
Present value of defined benefit obligation |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DefinedBenefitObligationAtPresentValue |
| 1928 |
Fair value of plan assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 1929 |
Net liability |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1930 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan |
| 1931 |
Non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan |
| 1932 |
Net liability |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilityAssetOfDefinedBenefitPlans |
| 1933 |
1176 - Disclosure - Employee Benefits - Summary of Total Amount Recognized in Other Comprehensive Income for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfTotalAmountRecognizedInOtherComprehensiveIncomeForJaguarLandRoverLimitedPensionPlan |
| 1934 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1935 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1936 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1937 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1938 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1939 |
Remeasurements (gains)/losses |
Concept (Monetary) |
As Of |
Debit |
ttm:RemeasurementsGainsLossesRecognizedInOtherComprehensiveIncome |
| 1940 |
Restriction of Pension asset (as per IFRIC 14) |
Concept (Monetary) |
As Of |
Debit |
ttm:RestrictionOfPensionAssetRecognizedInOtherComprehensiveIncome |
| 1941 |
Onerous obligation, excluding amounts included in interest expenses |
Concept (Monetary) |
As Of |
Debit |
ttm:OnerousObligationExcludingAmountsIncludedInInterestExpensesRecognizedInOtherComprehensiveIncome |
| 1942 |
Total amount recognized in other comprehensive income |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfRemeasurementsOfDefinedBenefitPlans |
| 1943 |
1177 - Disclosure - Employee Benefits - Summary of Net Pension and Post Retirement Cost for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfNetPensionAndPostRetirementCostForJaguarLandRoverLimitedPensionPlan |
| 1944 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1945 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1946 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1947 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1948 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1949 |
Current service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset |
| 1950 |
Past service cost |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset |
| 1951 |
Administrative expenses |
Concept (Monetary) |
For Period |
Debit |
ttm:AdministrativeExpensesNetDefinedBenefitLiabilityAsset |
| 1952 |
Interest cost on Onerous obligations |
Concept (Monetary) |
For Period |
Credit |
ttm:InterestCostOnOnerousObligationsNetDefinedBenefitLiabilityAsset |
| 1953 |
Plan settlement |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset |
| 1954 |
Net interest cost / (income) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset |
| 1955 |
Net periodic pension cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans |
| 1956 |
1178 - Disclosure - Employee Benefits - Summary of Amount Recognized in Other Comprehensive Income for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAmountRecognizedInOtherComprehensiveIncomeForJaguarLandRoverLimitedPensionPlan |
| 1957 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1958 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1959 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1960 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1961 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1962 |
Remeasurements |
Abstract |
|
|
ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAssetAbstract |
| 1963 |
Actuarial (gains)/losses arising from changes in demographic assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset |
| 1964 |
Actuarial (gains)/losses arising from changes in financial assumptions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset |
| 1965 |
Actuarial (gains)/losses arising from changes in experience adjustments on plan liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset |
| 1966 |
Return on plan assets, (excluding amount included in net Interest expense) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset |
| 1967 |
Change in onerous obligation, excluding amounts included in interest expenses |
Concept (Monetary) |
For Period |
Debit |
ttm:ChangeInOnerousObligationExcludingAmountsIncludedInInterestExpensesNetDefinedBenefitLiabilityAsset |
| 1968 |
Total recognized in other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 1969 |
Total recognized in income statement and statement of other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
ttm:DefinedBenefitPlansRecognizedInIncomeStatementAndOtherComprehensiveIncome |
| 1970 |
1179 - Disclosure - Employee Benefits - Summary of Assumptions Used in Accounting for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfAssumptionsUsedInAccountingForJaguarLandRoverLimitedPensionPlan |
| 1971 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1972 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1973 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1974 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1975 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1976 |
Aggregated time bands [Member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1977 |
Retiring today [Member] |
Member |
|
|
ttm:RetiringTodayMember |
| 1978 |
Retiring in 20 years [Member] |
Member |
|
|
ttm:RetiringInTwentyYearsMember |
| 1979 |
Gender type [axis] |
Axis |
|
|
ttm:GenderTypeAxis |
| 1980 |
Gender type [Domain] |
Member |
|
|
ttm:GenderTypeDomain |
| 1981 |
Males [Member] |
Member |
|
|
ttm:MalesMember |
| 1982 |
Females [Member] |
Member |
|
|
ttm:FemalesMember |
| 1983 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 1984 |
Discount rate |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfDiscountRates |
| 1985 |
Expected rate of increase in compensation level of covered employees |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases |
| 1986 |
Inflation increase |
Concept (Percent) |
As Of |
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflation |
| 1987 |
Assumed life expectations on retirement at age 65 are (years) |
Concept (Decimal) |
As Of |
|
ifrs-full:ActuarialAssumptionOfMortalityRates |
| 1988 |
1180 - Disclosure - Employee Benefits - Summary of Plan Assets Allocation by Category for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfPlanAssetsAllocationByCategoryForJaguarLandRoverLimitedPensionPlan |
| 1989 |
Disclosure of defined benefit plans [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDefinedBenefitPlansTable |
| 1990 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 1991 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 1992 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 1993 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 1994 |
All levels of fair value hierarchy [Member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 1995 |
Level 1 [Member] |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 1996 |
Level 2 and 3 of fair value hierarchy [Member] |
Member |
|
|
ifrs-full:Level2And3OfFairValueHierarchyMember |
| 1997 |
Classes of assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfAssetsAxis |
| 1998 |
Assets [Member] |
Member |
|
|
ifrs-full:ClassesOfAssetsMember |
| 1999 |
Technology [Member] |
Member |
|
|
ttm:TechnologyMember |
| 2000 |
Energy [Member] |
Member |
|
|
ttm:EnergyMember |
| 2001 |
Manufacturing [Member] |
Member |
|
|
ttm:ManufacturingMember |
| 2002 |
Financial [Member] |
Member |
|
|
ttm:FinancialMember |
| 2003 |
Other instruments at fair value asset [Member] |
Member |
|
|
ttm:OtherInstrumentsAtFairValueAssetMember |
| 2004 |
Government bonds [Member] |
Member |
|
|
ttm:GovernmentBondsMember |
| 2005 |
Corporate bonds (investment grade) [Member] |
Member |
|
|
ttm:CorporateBondsInvestmentMember |
| 2006 |
Corporate bonds (non-investment grade) [Member] |
Member |
|
|
ttm:CorporateBondsNonInvestmentMember |
| 2007 |
Hedge funds [Member] |
Member |
|
|
ifrs-full:HedgeFundInvestmentsMember |
| 2008 |
Private market [Member] |
Member |
|
|
ttm:PrivateMarketMember |
| 2009 |
Alternatives [Member] |
Member |
|
|
ttm:AlternativeMember |
| 2010 |
Foreign exchange contracts [Member] |
Member |
|
|
ttm:ForeignExchangeContractsMember |
| 2011 |
Interest Rate and Inflation [Member] |
Member |
|
|
ttm:InterestRateAndInflationMember |
| 2012 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 2013 |
Geographical areas [Member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 2014 |
United Kingdom [Member] |
Member |
|
|
country:GB |
| 2015 |
Disclosure of defined benefit plans [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDefinedBenefitPlansLineItems |
| 2016 |
Equity instruments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets |
| 2017 |
Debt instruments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets |
| 2018 |
Property funds |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentFundsAmountContributedToFairValueOfPlanAssets |
| 2019 |
Cash and Cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets |
| 2020 |
Other |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherAssetsAmountContributedToFairValueOfPlanAssets |
| 2021 |
Derivatives |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DerivativesAmountContributedToFairValueOfPlanAssets |
| 2022 |
Collateralized debt obligations |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:StructuredDebtAmountContributedToFairValueOfPlanAssets |
| 2023 |
Total |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PlanAssetsAtFairValue |
| 2024 |
1181 - Disclosure - Employee Benefits - Summary of Sensitivity Analysis for Jaguar Land Rover Limited Pension Plan (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEmployeeBenefitsSummaryOfSensitivityAnalysisForJaguarLandRoverLimitedPensionPlan |
| 2025 |
Disclosure of sensitivity analysis for actuarial assumptions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable |
| 2026 |
Defined benefit plans [axis] |
Axis |
|
|
ifrs-full:DefinedBenefitPlansAxis |
| 2027 |
Defined benefit plans [Member] |
Member |
|
|
ifrs-full:DefinedBenefitPlansMember |
| 2028 |
Jaguar Land Rover Pension plan [member] |
Member |
|
|
ttm:JaguarLandRoverPensionPlanMember |
| 2029 |
Actuarial assumptions [axis] |
Axis |
|
|
ifrs-full:ActuarialAssumptionsAxis |
| 2030 |
Actuarial assumptions [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionsMember |
| 2031 |
Discount rate [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfDiscountRatesMember |
| 2032 |
Actuarial assumption of expected rates of inflation [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflationMember |
| 2033 |
Mortality rates [Member] |
Member |
|
|
ifrs-full:ActuarialAssumptionOfMortalityRatesMember |
| 2034 |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems |
| 2035 |
Change in assumption, increase |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption |
| 2036 |
Change in assumption, decrease |
Concept (Percent) |
As Of |
|
ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption |
| 2037 |
Change in assumption, increase |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:PeriodOfReasonablyPossibleIncreaseInActuarialAssumption |
| 2038 |
Change in assumption, decrease |
Concept (xbrli:durationItemType) |
For Period |
|
ttm:PeriodOfReasonablyPossibleDecreaseInActuarialAssumption |
| 2039 |
Impact on scheme liabilities, due to increase in assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 2040 |
Impact on scheme liabilities, due to decrease in assumption |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 2041 |
Impact on service cost, due to increase in assumption |
Concept (Monetary) |
As Of |
Credit |
ttm:IncreaseDecreaseInImpactOnServiceCostAndInterestCostDueToReasonablyPossibleIncreaseInActuarialAssumption |
| 2042 |
Impact on service cost, due to decrease in assumption |
Concept (Monetary) |
As Of |
Credit |
ttm:IncreaseDecreaseInImpactOnServiceCostAndInterestCostDueToReasonablyPossibleDecreaseInActuarialAssumption |
| 2043 |
1182 - Disclosure - Commitments and Contingencies - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformation |
| 2044 |
Commitments and contingencies [table] |
Table |
* |
* |
ttm:CommitmentsAndContingenciesTable |
| 2045 |
Classes of contingent liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfContingentLiabilitiesAxis |
| 2046 |
Contingent liabilities [Member] |
Member |
|
|
ifrs-full:ContingentLiabilitiesMember |
| 2047 |
Income tax contingent liability [member] |
Member |
|
|
ttm:IncomeTaxContingentLiabilityMember |
| 2048 |
Customs, excise duty and service tax contingent liability [member] |
Member |
|
|
ttm:CustomsExciseDutyAndServiceTaxContingentLiabilityMember |
| 2049 |
Customs, excise duty and service tax demands for more [member] |
Member |
|
|
ttm:CustomsExciseDutyAndServiceTaxDemandsForMoreMember |
| 2050 |
Excise Authorities denied CENVAT credit claimed by the Company from Fiscal 1992 to Fiscal 2013 [member] |
Member |
|
|
ttm:ExciseAuthoritiesDeniedCENVATCreditClaimedByTheCompanyFromFiscal1992ToFiscal2013Member |
| 2051 |
Excise Authorities raised demand on account of alleged undervaluation's of ex-factory discounts given by Company on passenger vehicles through invoices [member] |
Member |
|
|
ttm:ExciseAuthoritiesRaisedDemandOnAccountOfAllegedUndervaluationOfExfactoryDiscountsGivenByCompanyOnPassengerVehiclesThroughInvoicesMember |
| 2052 |
Excise Authorities raised demand and penalty due to the classification of certain chassis [member] |
Member |
|
|
ttm:ExciseAuthoritiesRaisedDemandAndPenaltyDueToTheClassificationOfCertainChassisMember |
| 2053 |
Excise Authorities levied penalties and interest with respect to CENVAT credit claimed by the Company from March 2010 to November 2012 [Member] |
Member |
|
|
ttm:ExciseAuthoritiesLeviedPenaltiesAndInterestWithRespectToCENVATCreditClaimedByTheCompanyFromMarch2010ToNovember2012Member |
| 2054 |
Excise Authorities raised demand on pre-delivery inspection charges and free after-sales service charges incurred by dealers [Member] |
Member |
|
|
ttm:ExciseAuthoritiesRaisedDemandOnPredeliveryInspectionChargesAndFreeAftersalesServiceChargesIncurredByDealersMember |
| 2055 |
Service Tax Authorities has raised Service Tax demand [member] |
Member |
|
|
ttm:ServiceTaxAuthoritiesHasRaisedServiceTaxDemandMember |
| 2056 |
Exicse authorities confirmed demand penalty towards vehicles sold below cost of production with intention to penetrate market [member] |
Member |
|
|
ttm:ExicseAuthoritiesConfirmedDemandPenaltyTowardsVehiclesSoldBelowCostOfProductionWithIntentionToPenetrateMarketMember |
| 2057 |
Exicse authorities filed appeal before appellate authority against order of adjudicating authority allowing cenvat credit service tax availed on consulting engineers services [member] |
Member |
|
|
ttm:ExicseAuthoritiesFiledAppealBeforeAppellateAuthorityAgainstOrderOfAdjudicatingAuthorityAllowingCenvatCreditServiceTaxAvailedOnConsultingEngineersServicesMember |
| 2058 |
Sales tax contingent liability [Member] |
Member |
|
|
ttm:SalesTaxContingentLiabilityMember |
| 2059 |
Sales tax demands for more [Member] |
Member |
|
|
ttm:SalesTaxDemandsForMoreMember |
| 2060 |
Sales Tax Authorities raised demand towards rejection of certain statutory forms for concessional lower/nil tax rate [Member] |
Member |
|
|
ttm:SalesTaxAuthoritiesRaisedDemandTowardsRejectionOfCertainStatutoryFormsForConcessionalLowerNilTaxRateMember |
| 2061 |
Sales Tax Authorities denied input tax credit and levied interest and penalty thereon due to varied reasons [Member] |
Member |
|
|
ttm:SalesTaxAuthoritiesDeniedInputTaxCreditAndLeviedInterestAndPenaltyThereonDueToVariedReasonsMember |
| 2062 |
Sales tax demand aggregating raised sales tax authorities for non submission of Maharashtra trial balance [Member] |
Member |
|
|
ttm:SalesTaxDemandAggregatingRaisedSalesTaxAuthoritiesForNonSubmissionOfMaharashtraTrialBalanceMember |
| 2063 |
Sales tax authorities have raised demand for entry tax liability at various states [member] |
Member |
|
|
ttm:SalesTaxAuthoritiesHaveRaisedDemandForEntryTaxLiabilityAtVariousStatesMember |
| 2064 |
Other taxes and dues contingent liability [Member] |
Member |
|
|
ttm:OtherTaxesAndDuesContingentLiabilityMember |
| 2065 |
Other Taxes and Dues demands for more [Member] |
Member |
|
|
ttm:OtherTaxesAndDuesDemandsForMoreMember |
| 2066 |
Municipal authorities raised demand for higher octroi duties [Member] |
Member |
|
|
ttm:MunicipalAuthoritiesRaisedDemandForHigherOctroiDutiesMember |
| 2067 |
Local municipal authorities demand for property tax [Member] |
Member |
|
|
ttm:LocalMunicipalAuthoritiesDemandForPropertyTaxMember |
| 2068 |
Local authorities demand for Sales tax / VAT in respect of spare parts used for carrying out warranty repairs [Member] |
Member |
|
|
ttm:LocalAuthoritiesDemandForSalesTaxVATInRespectOfSparePartsUsedForCarryingOutWarrantyRepairsMember |
| 2069 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 2070 |
Entity's total for related parties [Member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 2071 |
Investments accounted for using equity method [member] |
Member |
|
|
ifrs-full:InvestmentsAccountedForUsingEquityMethodMember |
| 2072 |
Chery Jaguar Land Rover Automotive Co. Limited [member] |
Member |
|
|
ttm:CheryJaguarLandRoverAutomotiveCoLimitedMember |
| 2073 |
Commitments and contingencies [line items] |
LineItems |
|
|
ttm:CommitmentsAndContingenciesLineItems |
| 2074 |
Estimated effect of contingency |
Concept (Monetary) |
As Of |
|
ifrs-full:EstimatedFinancialEffectOfContingentLiabilities |
| 2075 |
Threshold amount of major contingency cases |
Concept (Monetary) |
As Of |
|
ttm:ThresholdAmountOfMajorContingencyCases |
| 2076 |
Various contracts with vendors and contractors for the acquisition of plant and machinery, equipment and various civil contracts of a capital nature |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment |
| 2077 |
Various contracts with vendors and contractors for the acquisition of intangible assets of a capital nature |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ContractualCommitmentsForAcquisitionOfIntangibleAssets |
| 2078 |
Committed to contribute under the joint venture agreement |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CommitmentsInRelationToJointVentures |
| 2079 |
Amount contributed under the joint venture agreement |
Concept (Monetary) |
For Period |
Debit |
ttm:ContributionsInJointVentures |
| 2080 |
Outstanding commitment under the joint venture agreement |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ContractualCapitalCommitments |
| 2081 |
1183 - Disclosure - Capital Management - Summary of Capital (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureCapitalManagementSummaryOfCapital |
| 2082 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 2083 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 2084 |
Equity [Member] |
Member |
|
|
ifrs-full:EquityMember |
| 2085 |
Equity attributable to shareholders of Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:EquityAttributableToOwnersOfParentMember |
| 2086 |
Non-controlling interests [Member] |
Member |
|
|
ifrs-full:NoncontrollingInterestsMember |
| 2087 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 2088 |
Total equity as reported in balance sheet |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 2089 |
Currency translation reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfExchangeDifferencesOnTranslation |
| 2090 |
Hedging reserve |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstruments |
| 2091 |
Equity |
Concept (Monetary) |
As Of |
Credit |
ttm:EquityForCapitalManagementPurposes |
| 2092 |
Short-term borrowings and current portion of long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 2093 |
Long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 2094 |
Total debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 2095 |
Total capital (Debt + Equity) |
Concept (Monetary) |
As Of |
Credit |
ttm:Capital1 |
| 2096 |
1184 - Disclosure - Disclosures on Financial Instruments - Summary of Carrying Amounts and Fair Value of Each Category of Financial Assets and Liabilities (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfCarryingAmountsAndFairValueOfEachCategoryOfFinancialAssetsAndLiabilities |
| 2097 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2098 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2099 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2100 |
Derivatives other than in hedging relationship [Member] |
Member |
|
|
ttm:DerivativesInOtherThanHedgingRelationshipMember |
| 2101 |
Derivatives in hedging relationship [Member] |
Member |
|
|
ttm:DerivativesInHedgingRelationshipMember |
| 2102 |
Financial liabilities other [Member] |
Member |
|
|
ttm:FinancialLiabilitiesOtherMember |
| 2103 |
Cash and loans and receivable [Member] |
Member |
|
|
ttm:CashAndLoansAndReceivableMember |
| 2104 |
Available-for-sale financial assets [Member] |
Member |
|
|
ifrs-full:FinancialAssetsAvailableforsaleCategoryMember |
| 2105 |
Measurement [axis] |
Axis |
|
|
ifrs-full:MeasurementAxis |
| 2106 |
Aggregated measurement [Member] |
Member |
|
|
ifrs-full:AggregatedMeasurementMember |
| 2107 |
Measured at fair value [Member] |
Member |
|
|
ifrs-full:AtFairValueMember |
| 2108 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2109 |
Financial assets |
Abstract |
|
|
ifrs-full:CategoriesOfFinancialAssetsAbstract |
| 2110 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 2111 |
Short-term deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents |
| 2112 |
Finance receivables |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivables |
| 2113 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 2114 |
Unquoted equity investments |
Concept (Monetary) |
As Of |
Debit |
ttm:UnquotedEquityInvestmentsAtCost |
| 2115 |
Unquoted equity investments, at fair value |
Concept (Monetary) |
As Of |
Debit |
ttm:UnquotedEquityInvestmentsAtFairValue |
| 2116 |
Other investments |
Concept (Monetary) |
As Of |
Debit |
ttm:OtherInvestments1 |
| 2117 |
Other financial assets: |
Abstract |
|
|
ttm:OtherFinancialAssetsAbstract |
| 2118 |
- current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentFinancialAssets |
| 2119 |
- non-current |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentFinancialAssets |
| 2120 |
Financial assets not measured at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 2121 |
Financial liabilities |
Abstract |
|
|
ifrs-full:CategoriesOfFinancialLiabilitiesAbstract |
| 2122 |
Accounts payable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers |
| 2123 |
Acceptances |
Concept (Monetary) |
As Of |
Credit |
ttm:CurrentAcceptances |
| 2124 |
Short-term debt (excluding current portion of long-term debt) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ShorttermBorrowings |
| 2125 |
Long-term debt (including current portion of long-term debt) |
Concept (Monetary) |
As Of |
Credit |
ttm:LongTermBorrowingsIncludingCurrentPortion |
| 2126 |
Other financial liabilities: |
Abstract |
|
|
ttm:OtherFinancialLiabilitiesAbstract |
| 2127 |
- current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentFinancialLiabilities |
| 2128 |
- non-current |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentFinancialLiabilities |
| 2129 |
Financial liabilities not measured at fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 2130 |
1185 - Disclosure - Disclosures on Financial Instruments - Summary of Carrying Amounts and Fair Value of Each Category of Financial Assets and Liabilities (Parenthetical) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfCarryingAmountsAndFairValueOfEachCategoryOfFinancialAssetsAndLiabilitiesParenthetical |
| 2131 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2132 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2133 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2134 |
Derivatives in hedging relationship [Member] |
Member |
|
|
ttm:DerivativesInHedgingRelationshipMember |
| 2135 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 2136 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 2137 |
Designated hedges [member] |
Member |
|
|
ttm:DesignatedHedgesMember |
| 2138 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 2139 |
Risks [Member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 2140 |
Interest rate risk [member] |
Member |
|
|
ifrs-full:InterestRateRiskMember |
| 2141 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2142 |
USD denominated bonds designated as cash flow hedges against forecasted USD revenue |
Concept (Monetary) |
As Of |
Credit |
ttm:BondsDesignatedAsCashFlowHedgesAgainstForecastedRevenue |
| 2143 |
Financial liabilities designated as hedged in fair value hedge relationship |
Concept (Monetary) |
As Of |
|
ifrs-full:FinancialInstrumentsDesignatedAsHedgingInstrumentsAtFairValue |
| 2144 |
Loss on fair value changes attributable to hedged interest rate risk |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnHedgedItemAttributableToHedgedRisk |
| 2145 |
1186 - Disclosure - Disclosures on Financial Instruments - Summary of Financial Assets and Liabilities Measured at Fair Value (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfFinancialAssetsAndLiabilitiesMeasuredAtFairValue |
| 2146 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2147 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2148 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2149 |
Available-for-sale financial assets [Member] |
Member |
|
|
ifrs-full:FinancialAssetsAvailableforsaleCategoryMember |
| 2150 |
Derivative financial instruments [Member] |
Member |
|
|
ifrs-full:DerivativesMember |
| 2151 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 2152 |
All levels of fair value hierarchy [Member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 2153 |
Level 1 [Member] |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 2154 |
Level 2 [Member] |
Member |
|
|
ifrs-full:Level2OfFairValueHierarchyMember |
| 2155 |
Level 3 [Member] |
Member |
|
|
ifrs-full:Level3OfFairValueHierarchyMember |
| 2156 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2157 |
Financial assets measured at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAtFairValue |
| 2158 |
Unquoted equity investments |
Concept (Monetary) |
As Of |
Debit |
ttm:UnquotedEquityInvestmentsAtFairValue |
| 2159 |
Financial liabilities measured at fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilitiesAtFairValue |
| 2160 |
1187 - Disclosure - Disclosures on Financial Instruments - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsAdditionalInformation |
| 2161 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2162 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 2163 |
Risks [Member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 2164 |
Foreign currency exchange rate risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 2165 |
Interest rate risk [member] |
Member |
|
|
ifrs-full:InterestRateRiskMember |
| 2166 |
Equity price risk [Member] |
Member |
|
|
ifrs-full:EquityPriceRiskMember |
| 2167 |
Concentration risk by type [axis] |
Axis |
|
|
ttm:ConcentrationRiskByType1Axis |
| 2168 |
Concentration risk by type [Member] |
Member |
|
|
ttm:ConcentrationRiskByTypeMember |
| 2169 |
Profit and loss [member] |
Member |
|
|
ttm:ProfitAndLossMember |
| 2170 |
Other comprehensive income loss before tax [member] |
Member |
|
|
ttm:OtherComprehensiveIncomeLossBeforeTaxMember |
| 2171 |
Equity [Member] |
Member |
|
|
ifrs-full:EquityMember |
| 2172 |
Gain loss on recognized in profit or loss due to ten percent Appreciation of Commodity Prices [member] |
Member |
|
|
ttm:GainLossOnRecognizedInProfitOrLossDueToTenPercentAppreciationOfCommodityPricesMember |
| 2173 |
Gain loss on recognized in profit or loss due to ten percent depreciation of Commodity Prices [member] |
Member |
|
|
ttm:GainLossOnRecognizedInProfitOrLossDueToTenPercentDepreciationOfCommodityPricesMember |
| 2174 |
Types of interest rates [axis] |
Axis |
|
|
ifrs-full:TypesOfInterestRatesAxis |
| 2175 |
Interest rate types [Member] |
Member |
|
|
ifrs-full:InterestRateTypesMember |
| 2176 |
Variable interest rate [member] |
Member |
|
|
ifrs-full:FloatingInterestRateMember |
| 2177 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2178 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2179 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 2180 |
Financial liabilities, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesMember |
| 2181 |
Derivatives which are not hedge accounted [member] |
Member |
|
|
ttm:DerivativesNotDesignatedAsHedgeAccountingMember |
| 2182 |
Commodity derivatives [member] |
Member |
|
|
ttm:CommodityDerivativesMember |
| 2183 |
Quoted equity shares [Member] |
Member |
|
|
ttm:QuotedEquitySharesMember |
| 2184 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2185 |
Financial assets, transfers from Level 1 into Level 2 |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyAssets |
| 2186 |
Financial assets, transfers from Level 2 into Level 1 |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets |
| 2187 |
Financial liabilities, transfers from Level 1 into Level 2 |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel1IntoLevel2OfFairValueHierarchyLiabilities |
| 2188 |
Financial liabilities, transfers from Level 2 into Level 1 |
Concept (Monetary) |
For Period |
|
ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities |
| 2189 |
Percentage of risk sensitivity |
Concept (Percent) |
As Of |
|
ttm:RiskExposureAssociatedWithInstrumentsSharingCharacteristicPercentageChangeInRisk |
| 2190 |
Potential risk amount due to change risk |
Concept (Monetary) |
As Of |
|
ifrs-full:RiskExposureAssociatedWithInstrumentsSharingCharacteristic |
| 2191 |
Financial liability |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 2192 |
Financial assets available-for-sale |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAvailableforsale |
| 2193 |
Investments in unquoted equity shares |
Concept (Monetary) |
As Of |
Debit |
ttm:UnquotedEquityInvestmentsAtCost |
| 2194 |
Maximum exposure to credit risk |
Concept (Monetary) |
As Of |
|
ifrs-full:MaximumExposureToCreditRisk |
| 2195 |
Percentage of non-convertible debentures invested in bank deposits |
Concept (Percent) |
For Period |
|
ttm:PercentageOfParValueOfDebentures |
| 2196 |
Gain/loss on foreign currency derivatives |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss |
| 2197 |
Gain (loss) on commodity derivative contracts |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives |
| 2198 |
1188 - Disclosure - Disclosures on Financial Instruments - Summary of Fair Value of Financial Instruments Not Measured at Fair Value on Recurring Basis (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentsNotMeasuredAtFairValueOnRecurringBasis |
| 2199 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2200 |
Measurement [axis] |
Axis |
|
|
ifrs-full:MeasurementAxis |
| 2201 |
Aggregated measurement [Member] |
Member |
|
|
ifrs-full:AggregatedMeasurementMember |
| 2202 |
Not measured at fair value on recurring basis [Member] |
Member |
|
|
ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember |
| 2203 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 2204 |
All levels of fair value hierarchy [Member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 2205 |
Level 1 [Member] |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 2206 |
Level 2 [Member] |
Member |
|
|
ifrs-full:Level2OfFairValueHierarchyMember |
| 2207 |
Level 3 [Member] |
Member |
|
|
ifrs-full:Level3OfFairValueHierarchyMember |
| 2208 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2209 |
Financial liabilities not measured at fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 2210 |
Financial assets not measured at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 2211 |
Financial assets not measured at fair value |
Abstract |
|
|
ifrs-full:CategoriesOfFinancialAssetsAbstract |
| 2212 |
Finance receivables |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivables |
| 2213 |
Other investments |
Concept (Monetary) |
As Of |
Debit |
ttm:OtherInvestments1 |
| 2214 |
Financial assets not measured at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 2215 |
Financial liabilities not measured at fair value |
Abstract |
|
|
ifrs-full:CategoriesOfFinancialLiabilitiesAbstract |
| 2216 |
Short-term debt (excluding current portion of long-term debt) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ShorttermBorrowings |
| 2217 |
Long-term debt (including current portion of long-term debt) |
Concept (Monetary) |
As Of |
Credit |
ttm:LongTermBorrowingsIncludingCurrentPortion |
| 2218 |
Financial liabilities not measured at fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 2219 |
1189 - Disclosure - Disclosures on Financial Instruments - Summary of Amounts that have been Offset and Amounts that are Available for Offset (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfAmountsThatHaveBeenOffsetAndAmountsThatAreAvailableForOffset |
| 2220 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2221 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2222 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2223 |
Derivative financial instruments [Member] |
Member |
|
|
ifrs-full:DerivativesMember |
| 2224 |
Trade receivables [Member] |
Member |
|
|
ifrs-full:TradeReceivablesMember |
| 2225 |
Cash and cash equivalent [Member] |
Member |
|
|
ttm:CashAndCashEquivalentMember |
| 2226 |
Accounts payable [Member] |
Member |
|
|
ttm:AccountsPayable1Member |
| 2227 |
Loans from banks/financial institutions (short-term) [member] |
Member |
|
|
ifrs-full:ShorttermBorrowingsMember |
| 2228 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2229 |
Gross amount recognized, Financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 2230 |
Gross amount recognized as set off in the balance sheet, Financial assets |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 2231 |
Net amount presented in the balance sheet, Financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition |
| 2232 |
Amounts subject to an enforceable master netting arrangement, Financial instruments, Financial assets |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets |
| 2233 |
Amounts subject to an enforceable master netting arrangement, Cash collateral, Financial assets |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets |
| 2234 |
Net amount after offsetting, Financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 2235 |
Gross amount recognized, Financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 2236 |
Gross amount recognized as set off in the balance sheet, Financial liabilities |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 2237 |
Gross amount recognized as set off in the balance sheet, Financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition |
| 2238 |
Amounts subject to an enforceable master netting arrangement, Financial instruments, Financial liabilities |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities |
| 2239 |
Amounts subject to an enforceable master netting arrangement, Cash collateral, Financial liabilities |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities |
| 2240 |
Net amount after offsetting, Financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements |
| 2241 |
1190 - Disclosure - Disclosures on Financial Instruments - Summary of Carrying Amount of Trade Receivables and Finance Receivables Sold Along with Associated Liabilities (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfCarryingAmountOfTradeReceivablesAndFinanceReceivablesSoldAlongWithAssociatedLiabilities |
| 2242 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2243 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2244 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2245 |
Trade receivables [Member] |
Member |
|
|
ifrs-full:TradeReceivablesMember |
| 2246 |
Finance receivables [Member] |
Member |
|
|
ttm:FinanceReceivables1Member |
| 2247 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2248 |
Carrying amount of asset sold |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:AssetsThatEntityContinuesToRecogniseToExtentOfContinuingInvolvement |
| 2249 |
Carrying amount of associated liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AssociatedLiabilitiesThatEntityContinuesToRecogniseToExtentOfContinuingInvolvement |
| 2250 |
Provision |
Concept (Monetary) |
For Period |
Debit |
ttm:ProvisionForTransferredFinancialAssets |
| 2251 |
1191 - Disclosure - Disclosures on Financial Instruments - Summary of Gain (Loss) from Cash Flow Hedges Recognized in Other Comprehensive Income and Income Statement (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfGainLossFromCashFlowHedgesRecognizedInOtherComprehensiveIncomeAndIncomeStatement |
| 2252 |
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [table] |
Table |
* |
* |
ifrs-full:DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable |
| 2253 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2254 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2255 |
Foreign currency derivative contracts [Member] |
Member |
|
|
ttm:ForeignCurrencyDerivativeContractsMember |
| 2256 |
Foreign currency bonds [Member] |
Member |
|
|
ttm:ForeignCurrencyBondsMember |
| 2257 |
Cross-Currency Interest Rate Swaps [Member] |
Member |
|
|
ttm:CrosscurrencyInterestRateSwapsMember |
| 2258 |
Income statement location [axis] |
Axis |
|
|
ttm:IncomeStatementLocation1Axis |
| 2259 |
Income statement location [Domain] |
Member |
|
|
ttm:IncomeStatementLocation1Domain |
| 2260 |
Revenue [member] |
Member |
|
|
ttm:RevenueMember |
| 2261 |
Raw materials, components and consumables [member] |
Member |
|
|
ttm:RawMaterialsComponentsAndConsumablesMember |
| 2262 |
Foreign exchange (gain)/loss (net) [Member] |
Member |
|
|
ttm:ForeignExchangeGainLossNetMember |
| 2263 |
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems |
| 2264 |
Gain/(loss) recognized in Hedging reserve |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax |
| 2265 |
Gain/(loss) reclassified from Hedging reserve to the income statement |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax |
| 2266 |
1192 - Disclosure - Disclosures on Financial Instruments - Summary of Foreign Currency Exposure (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfForeignCurrencyExposure |
| 2267 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2268 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 2269 |
Risks [Member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 2270 |
Foreign currency exchange rate risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 2271 |
Currency [axis] |
Axis |
|
|
us-gaap:CurrencyAxis |
| 2272 |
All Currencies [Domain] |
Member |
|
|
currency:AllCurrenciesDomain |
| 2273 |
U.S. dollar [Member] |
Member |
|
|
currency:USD |
| 2274 |
Euro [Member] |
Member |
|
|
currency:EUR |
| 2275 |
Chinese Renminbi [Member] |
Member |
|
|
currency:CNY |
| 2276 |
United Kingdom, Pounds |
Member |
|
|
currency:GBP |
| 2277 |
Japanese Yen [Member] |
Member |
|
|
currency:JPY |
| 2278 |
Others [Member] |
Member |
|
|
ttm:OtherCurrenciesMember |
| 2279 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2280 |
Financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssets |
| 2281 |
Financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 2282 |
1193 - Disclosure - Disclosures on Financial Instruments - Summary of Ageing of Trade and Finance Receivables (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfAgeingOfTradeAndFinanceReceivables |
| 2283 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2284 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 2285 |
Carrying amount [Member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 2286 |
Cost [Member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 2287 |
Past due status [axis] |
Axis |
|
|
ifrs-full:PastDueStatusAxis |
| 2288 |
Past due status [Member] |
Member |
|
|
ifrs-full:PastDueStatusMember |
| 2289 |
Not due [Member] |
Member |
|
|
ifrs-full:CurrentMember |
| 2290 |
Overdue up to 3 months [Member] |
Member |
|
|
ifrs-full:NotLaterThanThreeMonthsMember |
| 2291 |
Overdue 3-6 months [Member] |
Member |
|
|
ifrs-full:LaterThanThreeMonthsAndNotLaterThanSixMonthsMember |
| 2292 |
Overdue more than 6 months [Member] |
Member |
|
|
ifrs-full:LaterThanSixMonthsMember |
| 2293 |
Later than three months [member] |
Member |
|
|
ifrs-full:LaterThanThreeMonthsMember |
| 2294 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2295 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2296 |
Trade receivables [Member] |
Member |
|
|
ifrs-full:TradeReceivablesMember |
| 2297 |
Temporary difference, unused tax losses and unused tax credits [axis] |
Axis |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis |
| 2298 |
Temporary difference, unused tax losses and unused tax credits [Member] |
Member |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember |
| 2299 |
Allowance for credit losses [Member] |
Member |
|
|
ifrs-full:AllowanceForCreditLossesMember |
| 2300 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2301 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 2302 |
Trade receivables overdue more than six months, considered recoverable |
Concept (Monetary) |
As Of |
Debit |
ttm:RecoverableAmountFromGovernmentOrganizations |
| 2303 |
Finance receivables |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivables |
| 2304 |
1194 - Disclosure - Disclosures on Financial Instruments - Summary of Contractual Maturities of Financial Liabilities (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfContractualMaturitiesOfFinancialLiabilities |
| 2305 |
Disclosure of maturity analysis for financial liabilities [table] |
Table |
* |
* |
ttm:DisclosureOfMaturityAnalysisForFinancialLiabilitiesTable |
| 2306 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 2307 |
Aggregated time bands [Member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 2308 |
Later than one year and not later than two years [Member] |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 2309 |
Later than two years and not later than three years [Member] |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember |
| 2310 |
Later than three years and not later than five years [Member] |
Member |
|
|
ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember |
| 2311 |
Later than five years [Member] |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 2312 |
Disclosure of maturity analysis for financial liabilities [line items] |
LineItems |
|
|
ttm:DisclosureOfMaturityAnalysisForFinancialLiabilitiesLineItems |
| 2313 |
Accounts payable and acceptances, carrying amount |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherPayables |
| 2314 |
Borrowings and interest thereon, carrying amount |
Concept (Monetary) |
As Of |
Credit |
ttm:BorrowingsAndInterest |
| 2315 |
Other financial liabilities, carrying amount |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherFinancialLiabilities |
| 2316 |
Derivative liabilities, carrying amount |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilities |
| 2317 |
Financial liabilities not measured at fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilities |
| 2318 |
Accounts payable and acceptances, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows |
| 2319 |
Borrowings and interest thereon, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:BankBorrowingsUndiscountedCashFlows |
| 2320 |
Other financial liabilities, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
ttm:OtherFinancialLiabilitiesUndiscountedCashFlows |
| 2321 |
Derivative liabilities, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows |
| 2322 |
Total, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
ttm:FinancialLiabilitiesUndiscountedCashFlows |
| 2323 |
Collateralized debt obligations, carrying amount |
Concept (Monetary) |
As Of |
Credit |
ttm:CollateralizedDebtObligations |
| 2324 |
Collateralized debt obligations, contractual cash flows |
Concept (Monetary) |
As Of |
Credit |
ttm:CollateralizedDebtObligationsUndiscountedCashFlows |
| 2325 |
1195 - Disclosure - Disclosures on Financial Instruments - Summary of Fair Value of Derivative Financial Instruments (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfFairValueOfDerivativeFinancialInstruments |
| 2326 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2327 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2328 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2329 |
Foreign currency forward exchange contracts and options [Member] |
Member |
|
|
ttm:ForeignCurrencyForwardExchangeContractsAndOptionsMember |
| 2330 |
Commodity derivatives [member] |
Member |
|
|
ttm:CommodityDerivativesMember |
| 2331 |
Others including interest rate and currency swaps [Member] |
Member |
|
|
ttm:OtherDerivativesIncludingInterestRateAndCurrencySwapsMember |
| 2332 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2333 |
Fair value of derivative financial instruments |
Concept (Monetary) |
As Of |
Debit |
ttm:FairValueOfDerivativeFinancialAssetsAndLiabilitiesNet |
| 2334 |
1196 - Disclosure - Disclosures on Financial Instruments - Summary of Changes in Foreign Currency Forward Exchange Contracts and Options Due to 10% Appreciation/Depreciation of Foreign Currency (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfChangesInForeignCurrencyForwardExchangeContractsAndOptionsDueTo10AppreciationDepreciationOfForeignCurrency |
| 2335 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2336 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 2337 |
Risks [Member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 2338 |
Derivative financial instruments risk management [Member] |
Member |
|
|
ttm:DerivativeFinancialInstrumentsForRiskManagementPurposeMember |
| 2339 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 2340 |
Financial instruments, class [Member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 2341 |
Gain loss on hedging reserve due to ten percent depreciation of foreign currency [member] |
Member |
|
|
ttm:GainLossOnHedgingReserveDueToTenPercentDepreciationOfForeignCurrencyMember |
| 2342 |
Gain loss on recognised in profit or loss due to ten percent depreciation of foreign currency [member] |
Member |
|
|
ttm:GainLossOnRecognisedInProfitOrLossDueToTenPercentDepreciationOfForeignCurrencyMember |
| 2343 |
Gain loss on hedging reserve due to ten percent appreciation of foreign currency [member] |
Member |
|
|
ttm:GainLossOnHedgingReserveDueToTenPercentAppreciationOfForeignCurrencyMember |
| 2344 |
Gain loss recognised in profit or loss due to ten percent appreciation of foreign currency [member] |
Member |
|
|
ttm:GainLossRecognisedInProfitOrLossDueToTenPercentAppreciationOfForeignCurrencyMember |
| 2345 |
Concentration risk by type [axis] |
Axis |
|
|
ttm:ConcentrationRiskByType1Axis |
| 2346 |
Concentration risk by type [Member] |
Member |
|
|
ttm:ConcentrationRiskByTypeMember |
| 2347 |
Foreign currency forward exchange contracts and options [Member] |
Member |
|
|
ttm:ForeignCurrencyForwardExchangeContractsAndOptionsMember |
| 2348 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2349 |
10% appreciation of foreign currency |
Concept (Monetary) |
As Of |
|
ifrs-full:RiskExposureAssociatedWithInstrumentsSharingCharacteristic |
| 2350 |
1197 - Disclosure - Disclosures on Financial Instruments - Summary of Changes in Foreign Currency Forward Exchange Contracts and Options Due to 10% Appreciation/Depreciation of Foreign Currency (Parenthetical) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureDisclosuresOnFinancialInstrumentsSummaryOfChangesInForeignCurrencyForwardExchangeContractsAndOptionsDueTo10AppreciationDepreciationOfForeignCurrencyParenthetical |
| 2351 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 2352 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 2353 |
Risks [Member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 2354 |
Derivative financial instruments risk management [Member] |
Member |
|
|
ttm:DerivativeFinancialInstrumentsForRiskManagementPurposeMember |
| 2355 |
Concentration risk by type [axis] |
Axis |
|
|
ttm:ConcentrationRiskByType1Axis |
| 2356 |
Concentration risk by type [Member] |
Member |
|
|
ttm:ConcentrationRiskByTypeMember |
| 2357 |
Foreign currency forward exchange contracts and options [Member] |
Member |
|
|
ttm:ForeignCurrencyForwardExchangeContractsAndOptionsMember |
| 2358 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 2359 |
Percentage of risk sensitivity |
Concept (Percent) |
For Period |
|
ttm:PercentageOfRiskSensitivity |
| 2360 |
1198 - Disclosure - Collaterals - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureCollateralsAdditionalInformation |
| 2361 |
Implied Table |
Table |
* |
* |
implied:Table |
| 2362 |
Collateral [Abstract] |
Abstract |
|
|
ttm:CollateralAbstract |
| 2363 |
Assets pledged as collateral/security against borrowings |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral |
| 2364 |
Fair value of collaterals over which the Company has taken possession and held |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue |
| 2365 |
1199 - Disclosure - Segment Reporting - Summary of Segment Reporting (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingSummaryOfSegmentReporting |
| 2366 |
Disclosure of operating segments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfOperatingSegmentsTable |
| 2367 |
Segment consolidation items [axis] |
Axis |
|
|
ifrs-full:SegmentConsolidationItemsAxis |
| 2368 |
Entity's total for segment consolidation items [Member] |
Member |
|
|
ifrs-full:EntitysTotalForSegmentConsolidationItemsMember |
| 2369 |
Automotive and related activity [Member] |
Member |
|
|
ifrs-full:OperatingSegmentsMember |
| 2370 |
Segments [axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 2371 |
Segments [Member] |
Member |
|
|
ifrs-full:SegmentsMember |
| 2372 |
Tata and other brand vehicles [Member] |
Member |
|
|
ttm:TataAndOtherBrandVehiclesMember |
| 2373 |
Jaguar Land Rover vehicles [Member] |
Member |
|
|
ttm:JaguarLandRoverVehiclesMember |
| 2374 |
Others [Member] |
Member |
|
|
ifrs-full:AllOtherSegmentsMember |
| 2375 |
Intra-segment Eliminations [Member] |
Member |
|
|
ifrs-full:EliminationOfIntersegmentAmountsMember |
| 2376 |
Types of customers [axis] |
Axis |
|
|
ifrs-full:TypesOfCustomersAxis |
| 2377 |
Types of customers [Member] |
Member |
|
|
ifrs-full:TypesOfCustomersMember |
| 2378 |
External [Member] |
Member |
|
|
ttm:ExternalCustomersMember |
| 2379 |
Inter-segment/intra-segment [Member] |
Member |
|
|
ttm:IntersegmentMember |
| 2380 |
Disclosure of operating segments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfOperatingSegmentsLineItems |
| 2381 |
Revenues: |
Abstract |
|
|
ifrs-full:RevenueAbstract |
| 2382 |
Revenues |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 2383 |
Earnings before other income, interest and tax |
Concept (Monetary) |
For Period |
Credit |
ttm:ProfitLossBeforeOtherIncomeInterestAndTax |
| 2384 |
Share of profit/(loss) of equity accounted investees |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod |
| 2385 |
Reconciliation to net income: |
Abstract |
|
|
ttm:ReconciliationToNetIncomeAbstract |
| 2386 |
Assets written off/loss on sale of assets and others (net) |
Concept (Monetary) |
For Period |
Credit |
ttm:AssetsWrittenOffOrLossOnSaleOfAssetsAndOthersNet |
| 2387 |
Other income /(loss) (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherGainsLosses |
| 2388 |
Foreign exchange gain/(loss) (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss |
| 2389 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 2390 |
Interest expense (net) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpense |
| 2391 |
Income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 2392 |
Net Income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 2393 |
Depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 2394 |
Capital expenditure |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsToNoncurrentAssets |
| 2395 |
Segment assets |
Concept (Monetary) |
As Of |
Debit |
ttm:SegmentAssets |
| 2396 |
Assets classified as held for sale |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentAssetsClassifiedAsHeldForSale |
| 2397 |
Investment in equity accounted investees |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentAccountedForUsingEquityMethod |
| 2398 |
Assets written off/loss on sale of assets and others (net) |
Concept (Monetary) |
For Period |
Debit |
ttm:LossOnSaleOfAssetsWrittenOffAndOthersNet |
| 2399 |
Reconciliation to total assets: |
Abstract |
|
|
ttm:ReconciliationToTotalAssetsAbstract |
| 2400 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 2401 |
Current and non-current income tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssets |
| 2402 |
Deferred income taxes |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 2403 |
Other unallocated financial assets |
Concept (Monetary) |
As Of |
Debit |
ttm:OtherUnallocatedFinancialAssets |
| 2404 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 2405 |
Segment liabilities |
Concept (Monetary) |
As Of |
Credit |
ttm:SegmentLiabilities |
| 2406 |
Liabilities classified as held for sale |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale |
| 2407 |
Reconciliation to total liabilities: |
Abstract |
|
|
ttm:ReconciliationToTotalLiabilitiesAbstract |
| 2408 |
Borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Borrowings |
| 2409 |
Current income tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 2410 |
Deferred income taxes |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 2411 |
Other unallocated financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ttm:OtherUnallocatedFinancialLiabilities |
| 2412 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 2413 |
1200 - Disclosure - Segment Reporting - Summary of Segment Reporting (Parenthetical) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingSummaryOfSegmentReportingParenthetical |
| 2414 |
Implied Table |
Table |
* |
* |
implied:Table |
| 2415 |
Disclosure of operating segments [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfOperatingSegmentsAbstract |
| 2416 |
Provision/(Reversal) for loss of inventory (net of insurance recoveries) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:WritedownsReversalsOfInventories |
| 2417 |
1201 - Disclosure - Segment Reporting - Summary of Information Concerning Principal Geographic Areas (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingSummaryOfInformationConcerningPrincipalGeographicAreas |
| 2418 |
Disclosure of geographical areas [table] |
Table |
* |
* |
ifrs-full:DisclosureOfGeographicalAreasTable |
| 2419 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 2420 |
Geographical areas [Member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 2421 |
India [Member] |
Member |
|
|
ifrs-full:CountryOfDomicileMember |
| 2422 |
United States of America [Member] |
Member |
|
|
country:US |
| 2423 |
United Kingdom [Member] |
Member |
|
|
country:GB |
| 2424 |
Rest of Europe [Member] |
Member |
|
|
ttm:RestOfEuropeMember |
| 2425 |
China [Member] |
Member |
|
|
country:CN |
| 2426 |
Rest of the World [Member] |
Member |
|
|
ttm:RestOfTheWorldMember |
| 2427 |
Disclosure of geographical areas [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfGeographicalAreasLineItems |
| 2428 |
Revenues |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 2429 |
Non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts |
| 2430 |
1202 - Disclosure - Segment Reporting - Summary of Information About Product Revenues (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSegmentReportingSummaryOfInformationAboutProductRevenues |
| 2431 |
Disclosure of products and services [table] |
Table |
* |
* |
ifrs-full:DisclosureOfProductsAndServicesTable |
| 2432 |
Products and services [axis] |
Axis |
|
|
ifrs-full:ProductsAndServicesAxis |
| 2433 |
Products and services [Member] |
Member |
|
|
ifrs-full:ProductsAndServicesMember |
| 2434 |
Tata and Fiat vehicles [Member] |
Member |
|
|
ttm:TataAndFiatVehiclesMember |
| 2435 |
Tata Daewoo commercial vehicles [Member] |
Member |
|
|
ttm:TataDaewooCommercialVehiclesMember |
| 2436 |
Finance revenues [Member] |
Member |
|
|
ttm:FinanceRevenuesMember |
| 2437 |
Jaguar Land Rover vehicles [Member] |
Member |
|
|
ttm:JaguarLandRoverVehiclesMember |
| 2438 |
Others [Member] |
Member |
|
|
ttm:OtherProductsMember |
| 2439 |
Disclosure of products and services [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfProductsAndServicesLineItems |
| 2440 |
Revenues |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 2441 |
1203 - Disclosure - Related-party Transactions - Summary of Related-party Transactions and Balances Included in Consolidated Financial Statements (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureRelatedpartyTransactionsSummaryOfRelatedpartyTransactionsAndBalancesIncludedInConsolidatedFinancialStatements |
| 2442 |
Disclosure of transactions between related parties [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable |
| 2443 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 2444 |
Entity's total for related parties [Member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 2445 |
Associates and its subsidiaries [Member] |
Member |
|
|
ifrs-full:AssociatesMember |
| 2446 |
Joint ventures [Member] |
Member |
|
|
ifrs-full:JointVenturesMember |
| 2447 |
Joint operations [Member] |
Member |
|
|
ifrs-full:JointOperationsMember |
| 2448 |
Tata Sons Limited [Member] |
Member |
|
|
ttm:TataSonsLimitedMember |
| 2449 |
Disclosure of transactions between related parties [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems |
| 2450 |
Purchase of products |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PurchasesOfGoodsRelatedPartyTransactions |
| 2451 |
Sale of products |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions |
| 2452 |
Services received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ServicesReceivedRelatedPartyTransactions |
| 2453 |
Services rendered |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromRenderingOfServicesRelatedPartyTransactions |
| 2454 |
Acceptances |
Concept (Monetary) |
As Of |
Credit |
ttm:AcceptancesRelatedPartyTransactions |
| 2455 |
Purchase of property, plant and equipment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions |
| 2456 |
Purchase of investments |
Concept (Monetary) |
For Period |
Debit |
ttm:PurchasesOfInvestmentsRelatedPartyTransactions |
| 2457 |
Interest (income)/expense, dividend (income)/paid, (net) |
Concept (Monetary) |
For Period |
Debit |
ttm:InterestIncomeExpensesAndDividendIncomePaidToRelatedPartyTransactions |
| 2458 |
Loans taken |
Concept (Monetary) |
As Of |
Credit |
ttm:LoansPayableRelatedPartyTransactions |
| 2459 |
Loans repaid by us |
Concept (Monetary) |
As Of |
Debit |
ttm:RepaymentOfLoansPayableRelatedPartyTransactions |
| 2460 |
Amounts receivable in respect of loans and interest thereon |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:AmountsReceivableRelatedPartyTransactions |
| 2461 |
Amounts payable in respect of loans and interest thereon |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AmountsPayableRelatedPartyTransactions |
| 2462 |
Trade and other receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties |
| 2463 |
Accounts payable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherPayablesToRelatedParties |
| 2464 |
Acceptances |
Concept (Monetary) |
As Of |
Credit |
ttm:AcceptancesFromRelatedPartyTransactions |
| 2465 |
Deposit given as security |
Concept (Monetary) |
For Period |
Debit |
ttm:DepositGivenAsSecurityRelatedPartyTransactions |
| 2466 |
Conversion of Optionally Convertible Preference shares in to equity shares |
Concept (Monetary) |
As Of |
Debit |
ttm:FairValueOfLoanToEquityAccountedInvesteeConvertedIntoEquityShares |
| 2467 |
Loans given |
Concept (Monetary) |
As Of |
Debit |
ttm:LoansReceivableRelatedPartyTransactions |
| 2468 |
Loans given, repaid |
Concept (Monetary) |
As Of |
Credit |
ttm:RepaymentOfLoansReceivableRelatedPartyTransactions |
| 2469 |
Sale of Investments |
Concept (Monetary) |
For Period |
Credit |
ttm:SaleOfInvestmentsRelatedPartyTransactions |
| 2470 |
Proceeds from issue of shares |
Concept (Monetary) |
For Period |
Debit |
ttm:ProceedsFromIssuingSharesRelatedPartyTransactions |
| 2471 |
Deposits receivable |
Concept (Monetary) |
As Of |
Debit |
ttm:DepositsReceivableRelatedPartyTransactions |
| 2472 |
1204 - Disclosure - Related-party Transactions - Summary of Compensation and Other Transactions with Key Management Personnel (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureRelatedpartyTransactionsSummaryOfCompensationAndOtherTransactionsWithKeyManagementPersonnel |
| 2473 |
Disclosure of transactions between related parties [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable |
| 2474 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 2475 |
Entity's total for related parties [Member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 2476 |
Key management personnel [Member] |
Member |
|
|
ifrs-full:KeyManagementPersonnelOfEntityOrParentMember |
| 2477 |
Disclosure of transactions between related parties [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems |
| 2478 |
Short-term benefits |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits |
| 2479 |
Post-employment benefits |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits |
| 2480 |
Issue of shares pursuant to rights issue |
Concept (Monetary) |
For Period |
Credit |
ttm:IssueOfSharesPursuantRightsIssueToRelatedParty |
| 2481 |
Sale of products |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions |
| 2482 |
Dividend paid |
Concept (Monetary) |
For Period |
Credit |
ttm:DividendsPaidRelatedPartyTransactions |
| 2483 |
1205 - Disclosure - Related-party Transactions - Summary of Compensation and Other Transactions with Key Management Personnel (Parenthetical) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureRelatedpartyTransactionsSummaryOfCompensationAndOtherTransactionsWithKeyManagementPersonnelParenthetical |
| 2484 |
Disclosure of transactions between related parties [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable |
| 2485 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 2486 |
Entity's total for related parties [Member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 2487 |
Key management personnel [Member] |
Member |
|
|
ifrs-full:KeyManagementPersonnelOfEntityOrParentMember |
| 2488 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 2489 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 2490 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 2491 |
Disclosure of transactions between related parties [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems |
| 2492 |
Dividend paid |
Concept (Monetary) |
For Period |
Credit |
ttm:DividendsPaidRelatedPartyTransactions |
| 2493 |
1206 - Disclosure - Earnings Per Share ("EPS") - Summary of Earnings Per Share (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEarningsPerShareEPSSummaryOfEarningsPerShare |
| 2494 |
Earnings per share [table] |
Table |
* |
* |
ifrs-full:EarningsPerShareTable |
| 2495 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 2496 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 2497 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 2498 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 2499 |
Earnings per share [line items] |
LineItems |
|
|
ifrs-full:EarningsPerShareLineItems |
| 2500 |
Net income attributable to shareholders, Basic net earnings per share |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity |
| 2501 |
Net income attributable to shareholders, Effect of shares kept in abeyance |
Concept (Monetary) |
For Period |
Credit |
ttm:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityEffectOfSharesKeptInAbeyance |
| 2502 |
Net income attributable to shareholders, Diluted earnings per share |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects |
| 2503 |
Weighted average shares, Basic net earnings per share |
Concept (Shares) |
For Period |
|
ifrs-full:WeightedAverageShares |
| 2504 |
Weighted average shares, Effect of shares kept in abeyance |
Concept (Shares) |
For Period |
|
ttm:AdjustedWeightedAverageSharesEffectOfSharesKeptInAbeyance |
| 2505 |
Weighted average shares, Diluted earnings per share |
Concept (Shares) |
For Period |
|
ifrs-full:AdjustedWeightedAverageShares |
| 2506 |
Basic net earnings per share |
Concept (Share) |
For Period |
|
ifrs-full:BasicEarningsLossPerShare |
| 2507 |
Earnings per share, Effect of shares kept in abeyance |
Concept (Share) |
For Period |
|
ttm:EarningsLossPerShareEffectOfSharesKeptInAbeyance |
| 2508 |
Diluted earnings per share |
Concept (Share) |
For Period |
|
ifrs-full:DilutedEarningsLossPerShare |
| 2509 |
1207 - Disclosure - Earnings Per Share ("EPS") - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureEarningsPerShareEPSAdditionalInformation |
| 2510 |
Earnings per share [table] |
Table |
* |
* |
ifrs-full:EarningsPerShareTable |
| 2511 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 2512 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 2513 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 2514 |
Earnings per share [line items] |
LineItems |
|
|
ifrs-full:EarningsPerShareLineItems |
| 2515 |
Percentage points more than the aggregate rate of dividend declared on Ordinary shares that 'A' Ordinary shareholders are entitled to |
Concept (Percent) |
For Period |
|
ttm:PercentagePointsMoreThanAggregateRateOfDividendDeclared |
| 2516 |
1208 - Disclosure - The Assets and Liabilities of Tata Technologies Limited, Tal Manufacturing Solutions Limited, Company's Certain Assets Related to Defence Business are Classified as "Held for Sale" as They Meet Criteria Laid Out Under IFRS 5 - Summary of Assets and Liabilities Classifed as Held for Sale (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureTheAssetsAndLiabilitiesOfTataTechnologiesLimitedTalManufacturingSolutionsLimitedCompanysCertainAssetsRelatedToDefenceBusinessAreClassifiedAsHeldForSaleAsTheyMeetCrit_Xa |
| 2517 |
Disclosure of assets and liabilities classified as held for sale [Table] |
Table |
* |
* |
ttm:DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable |
| 2518 |
Assets and liabilities classified as held for sale [axis] |
Axis |
|
|
ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis |
| 2519 |
Assets and liabilities not classified as held for sale [member] |
Member |
|
|
ifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember |
| 2520 |
Assets and liabilities classified as held for sale [member] |
Member |
|
|
ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleMember |
| 2521 |
Disclosure of assets and liabilities classified as held for sale [Line Items] |
LineItems |
|
|
ttm:DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems |
| 2522 |
ASSETS: |
Abstract |
|
|
ifrs-full:AssetsAbstract |
| 2523 |
Current assets: |
Abstract |
|
|
ifrs-full:CurrentAssetsAbstract |
| 2524 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 2525 |
Short-term deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents |
| 2526 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 2527 |
Other financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentFinancialAssets |
| 2528 |
Inventories |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 2529 |
Other current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentNonfinancialAssets |
| 2530 |
Current income tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsCurrent |
| 2531 |
Total current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 2532 |
Non-currentassets: |
Abstract |
|
|
ifrs-full:NoncurrentAssetsAbstract |
| 2533 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 2534 |
Other financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentFinancialAssets |
| 2535 |
Property, plant and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 2536 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 2537 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 2538 |
Non-current income tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsNoncurrent |
| 2539 |
Deferred income taxes |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 2540 |
Other non-currentassets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentNonfinancialAssets |
| 2541 |
Total non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssets |
| 2542 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 2543 |
LIABILITIES |
Abstract |
|
|
ifrs-full:LiabilitiesAbstract |
| 2544 |
Current liabilities: |
Abstract |
|
|
ifrs-full:CurrentLiabilitiesAbstract |
| 2545 |
Accounts payable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers |
| 2546 |
Short-term borrowings and current portion of long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 2547 |
Other financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentFinancialLiabilities |
| 2548 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisions |
| 2549 |
Other current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentNonfinancialLiabilities |
| 2550 |
Current income tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 2551 |
Total current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 2552 |
Non-currentliabilities: |
Abstract |
|
|
ifrs-full:NoncurrentLiabilitiesAbstract |
| 2553 |
Long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 2554 |
Other financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentFinancialLiabilities |
| 2555 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisions |
| 2556 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentNonfinancialLiabilities |
| 2557 |
Total non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 2558 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 2559 |
1209 - Disclosure - Investment to Subsidiaries - Summary of Subsidiaries (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureInvestmentToSubsidiariesSummaryOfSubsidiaries |
| 2560 |
Disclosure of subsidiaries [table] |
Table |
* |
* |
ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable |
| 2561 |
Consolidated Entities [Axis] |
Axis |
|
|
us-gaap:ConsolidatedEntitiesAxis |
| 2562 |
Consolidated Entities [Domain] |
Member |
|
|
us-gaap:ConsolidatedEntitiesDomain |
| 2563 |
Subsidiaries of TML Holdings Pte. Ltd. [member] |
Member |
|
|
ttm:SubsidiariesOfTMLHoldingsPteLtdMember |
| 2564 |
Subsidiaries of Jaguar Land Rover Automotive Plc [member] |
Member |
|
|
ttm:SubsidiariesOfJaguarLandRoverAutomotivePlcMember |
| 2565 |
Subsidiaries of Jaguar Land Rover Holdings Limited [member] |
Member |
|
|
ttm:SubsidiariesOfJaguarLandRoverHoldingsLimitedMember |
| 2566 |
Subsidiaries of Spark44 (JV) Limited [member] |
Member |
|
|
ttm:SubsidiariesOfSpark44JVLimitedMember |
| 2567 |
Subsidiaries of Tata Technologies Limited [member] |
Member |
|
|
ttm:SubsidiariesOfTataTechnologiesLimitedMember |
| 2568 |
Subsidiaries of TMF Holdings Ltd. [member] |
Member |
|
|
ttm:SubsidiariesOfTMFHoldingsLtdMember |
| 2569 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 2570 |
Entity's total for subsidiaries [Member] |
Member |
|
|
ifrs-full:EntitysTotalForSubsidiariesMember |
| 2571 |
Concorde Motors (India) Limited [member] |
Member |
|
|
ttm:ConcordeMotorsIndiaLimitedMember |
| 2572 |
TAL Manufacturing Solutions Limited [member] |
Member |
|
|
ttm:TALManufacturingSolutionsLimitedMember |
| 2573 |
Tata Motors European Technical Centre PLC [member] |
Member |
|
|
ttm:TataMotorsEuropeanTechnicalCentrePLCMember |
| 2574 |
Tata Motors Insurance Broking and Advisory Services Limited [member] |
Member |
|
|
ttm:TataMotorsInsuranceBrokingAndAdvisoryServicesLimitedMember |
| 2575 |
TMF Holdings Limited [member] |
Member |
|
|
ttm:TMFHoldingsLimitedMember |
| 2576 |
Subsidiaries of TML Holdings Pte. Ltd. [member] |
Member |
|
|
ttm:TMLHoldingsPteLimitedMember |
| 2577 |
TML Distribution Company Limited [member] |
Member |
|
|
ttm:TMLDistributionCompanyLimitedMember |
| 2578 |
Tata Hispano Motors Carrocera S.A. [member] |
Member |
|
|
ttm:TataHispanoMotorsCarroceraSAMember |
| 2579 |
Tata Hispano Motors Carrocerries Maghreb SA [member] |
Member |
|
|
ttm:TataHispanoMotorsCarrocerriesMaghrebSAMember |
| 2580 |
TML Drivelines Limited [member] |
Member |
|
|
ttm:TMLDrivelinesLimitedMember |
| 2581 |
Trilix S.r.l. [member] |
Member |
|
|
ttm:TrilixSrlMember |
| 2582 |
Tata Precision Industries Pte. Limited [member] |
Member |
|
|
ttm:TataPrecisionIndustriesPteLimitedMember |
| 2583 |
Tata Technologies Limited [Member] |
Member |
|
|
ttm:TataTechnologiesLimitedMember |
| 2584 |
Tata Marcopolo Motors Limited [member] |
Member |
|
|
ttm:TataMarcopoloMotorsLimitedMember |
| 2585 |
Tata Daewoo Commercial Vehicle Company Limited [Member] |
Member |
|
|
ttm:TataDaewooCommercialVehicleCompanyLimitedMember |
| 2586 |
Tata Daewoo Commercial Vehicle Sales and Distribution Company Limited [member] |
Member |
|
|
ttm:TataDaewooCommercialVehicleSalesAndDistributionCompanyLimitedMember |
| 2587 |
Tata Motors (Thailand) Limited [member] |
Member |
|
|
ttm:TataMotorsThailandLimitedMember |
| 2588 |
Tata Motors (SA) (Proprietary) Limited [member] |
Member |
|
|
ttm:TataMotorsSAProprietaryLimitedMember |
| 2589 |
PT Tata Motors Indonesia [member] |
Member |
|
|
ttm:PTTataMotorsIndonesiaMember |
| 2590 |
PT Tata Motors Distribusi Indonesia [member] |
Member |
|
|
ttm:PTTataMotorsDistribusiIndonesiaMember |
| 2591 |
TMNL Motor Services Nigeria Limited [member] |
Member |
|
|
ttm:TMNLMotorServicesNigeriaLimitedMember |
| 2592 |
Jaguar Land Rover Automotive Plc [Member] |
Member |
|
|
ttm:JaguarLandRoverAutomotivePlcMember |
| 2593 |
Jaguar Land Rover Limited [member] |
Member |
|
|
ttm:JaguarLandRoverLimitedMember |
| 2594 |
Jaguar Land Rover Austria GmbH [member] |
Member |
|
|
ttm:JaguarLandRoverAustriaGmbHMember |
| 2595 |
Jaguar Land Rover Japan Limited [member] |
Member |
|
|
ttm:JaguarLandRoverJapanLimitedMember |
| 2596 |
JLR Nominee Company Limited [member] |
Member |
|
|
ttm:JLRNomineeCompanyLimitedMember |
| 2597 |
Jaguar Land Rover Deutschland GmbH [member] |
Member |
|
|
ttm:JaguarLandRoverDeutschlandGmbHMember |
| 2598 |
Jaguar Land Rover North America LLC [member] |
Member |
|
|
ttm:JaguarLandRoverNorthAmericaLLCMember |
| 2599 |
Jaguar Land Rover Nederland BV [member] |
Member |
|
|
ttm:JaguarLandRoverNederlandBVMember |
| 2600 |
Jaguar Land Rover Portugal - Veculos e Pecas Lda. [member] |
Member |
|
|
ttm:JaguarLandRoverPortugalVeculosePecasLdaMember |
| 2601 |
Jaguar Land Rover Australia Pty Limited [member] |
Member |
|
|
ttm:JaguarLandRoverAustraliaPtyLimitedMember |
| 2602 |
Jaguar Land Rover Italia Spa [member] |
Member |
|
|
ttm:JaguarLandRoverItaliaSpaMember |
| 2603 |
Jaguar Land Rover Korea Company Limited [member] |
Member |
|
|
ttm:JaguarLandRoverKoreaCompanyLimitedMember |
| 2604 |
Jaguar Land Rover (China) Investment Co. Limited [member] |
Member |
|
|
ttm:JaguarLandRoverChinaInvestmentCoLimitedMember |
| 2605 |
Jaguar Land Rover Canada ULC [member] |
Member |
|
|
ttm:JaguarLandRoverCanadaULCMember |
| 2606 |
Jaguar Land Rover France, SAS [member] |
Member |
|
|
ttm:JaguarLandRoverFranceSASMember |
| 2607 |
Jaguar Land Rover (South Africa) (Pty) Limited [member] |
Member |
|
|
ttm:JaguarLandRoverSouthAfricaPtyLimitedMember |
| 2608 |
Jaguar e Land Rover Brasil Indstria e Comrcio de Veculos LTDA [member] |
Member |
|
|
ttm:JaguareLandRoverBrasilIndustriaeComercioDeVeiculosLtdaMember |
| 2609 |
Limited Liability Company "Jaguar Land Rover" (Russia) [member] |
Member |
|
|
ttm:LimitedLiabilityCompanyJaguarLandRoverRussiaMember |
| 2610 |
Jaguar Land Rover (South Africa) Holdings Limited [member] |
Member |
|
|
ttm:JaguarLandRoverSouthAfricaHoldingsLimitedMember |
| 2611 |
Jaguar Land Rover India Limited [member] |
Member |
|
|
ttm:JaguarLandRoverIndiaLimitedMember |
| 2612 |
Jaguar Land Rover Espana SL [member] |
Member |
|
|
ttm:JaguarLandRoverEspanaSLMember |
| 2613 |
Jaguar Land Rover Belux NV [member] |
Member |
|
|
ttm:JaguarLandRoverBeluxNVMember |
| 2614 |
Jaguar Cars South Africa (Pty) Limited [member] |
Member |
|
|
ttm:JaguarCarsSouthAfricaPtyLimitedMember |
| 2615 |
The Jaguar Collection Limited [member] |
Member |
|
|
ttm:TheJaguarCollectionLimitedMember |
| 2616 |
Jaguar Cars Limited [member] |
Member |
|
|
ttm:JaguarCarsLimitedMember |
| 2617 |
Land Rover Exports Limited [member] |
Member |
|
|
ttm:LandRoverExportsLimitedMember |
| 2618 |
Land Rover Ireland Limited [member] |
Member |
|
|
ttm:LandRoverIrelandLimitedMember |
| 2619 |
The Daimler Motor Company Limited [member] |
Member |
|
|
ttm:TheDaimlerMotorCompanyLimitedMember |
| 2620 |
Daimler Transport Vehicles Limited [member] |
Member |
|
|
ttm:DaimlerTransportVehiclesLimitedMember |
| 2621 |
S.S. Cars Limited [member] |
Member |
|
|
ttm:SSCarsLimitedMember |
| 2622 |
The Lanchester Motor Company Limited [member] |
Member |
|
|
ttm:TheLanchesterMotorCompanyLimitedMember |
| 2623 |
Shanghai Jaguar Land Rover Automotive Services Company Limited [member] |
Member |
|
|
ttm:ShanghaiJaguarLandRoverAutomotiveServicesCompanyLimitedMember |
| 2624 |
Jaguar Land Rover Pension Trustees Limited [member] |
Member |
|
|
ttm:JaguarLandRoverPensionTrusteesLimitedMember |
| 2625 |
Jaguar Land Rover Slovakia s.r.o [member] |
Member |
|
|
ttm:JaguarLandRoverSlovakiaSROMember |
| 2626 |
Jaguar Land Rover Singapore Pte. Ltd. [member] |
Member |
|
|
ttm:JaguarLandRoverSingaporePteLtdMember |
| 2627 |
Jaguar Racing Limited [member] |
Member |
|
|
ttm:JaguarRacingLimitedMember |
| 2628 |
InMotion Ventures Limited [member] |
Member |
|
|
ttm:InMotionVenturesLimitedMember |
| 2629 |
InMotion Ventures 1 Limited [member] |
Member |
|
|
ttm:InMotionVentures1LimitedMember |
| 2630 |
InMotion Ventures 2 Limited [member] |
Member |
|
|
ttm:InMotionVentures2LimitedMember |
| 2631 |
InMotion Ventures 3 Limited [member] |
Member |
|
|
ttm:InMotionVentures3LimitedMember |
| 2632 |
Jaguar Land Rover Colombia S.A.S [member] |
Member |
|
|
ttm:JaguarLandRoverColombiaSASMember |
| 2633 |
Jaguar Land Rover Ireland (Services) Limited [member] |
Member |
|
|
ttm:JaguarLandRoverIrelandServicesLimitedMember |
| 2634 |
Jaguar Land Rover Taiwan Company Limited [member] |
Member |
|
|
ttm:JaguarLandRoverTaiwanCompanyLimitedMember |
| 2635 |
Jaguar Land Rover Servicios Mxico, S.A. de C.V. [member] |
Member |
|
|
ttm:JaguarLandRoverServiciosMxicoSADeCVMember |
| 2636 |
Jaguar Land Rover Mxico, S.A.P.I. de C.V. [member] |
Member |
|
|
ttm:JaguarLandRoverMxicoSAPIDeCVMember |
| 2637 |
Spark44 (JV) Limited [member] |
Member |
|
|
ttm:Spark44JVLimitedMember |
| 2638 |
Spark44 Pty. Ltd. [member] |
Member |
|
|
ttm:Spark44PtyLtdMember |
| 2639 |
Spark44 GmbH [member] |
Member |
|
|
ttm:Spark44GmbHMember |
| 2640 |
Spark44 LLC [member] |
Member |
|
|
ttm:Spark44LLCMember |
| 2641 |
Spark44 Shanghai Limited [member] |
Member |
|
|
ttm:Spark44ShanghaiLimitedMember |
| 2642 |
Spark44 DMCC [member] |
Member |
|
|
ttm:Spark44DMCCMember |
| 2643 |
Spark44 Demand Creation Partners Pvt. Limited [member] |
Member |
|
|
ttm:Spark44DemandCreationPartnersPvtLimitedMember |
| 2644 |
Spark44 Limited [member] |
Member |
|
|
ttm:Spark44LimitedMember |
| 2645 |
Spark44 Singapore Pte. Ltd. [member] |
Member |
|
|
ttm:Spark44SingaporePteLtdMember |
| 2646 |
Spark44 Communications SL [member] |
Member |
|
|
ttm:Spark44CommunicationsSLMember |
| 2647 |
Spark44 S.r.l. [member] |
Member |
|
|
ttm:Spark44SrlMember |
| 2648 |
Spark44 Seoul Limited [member] |
Member |
|
|
ttm:Spark44SeoulLimitedMember |
| 2649 |
Spark44 Japan K.K. [member] |
Member |
|
|
ttm:Spark44JapanKKMember |
| 2650 |
Spark44 Canada Inc [member] |
Member |
|
|
ttm:Spark44CanadaIncMember |
| 2651 |
Spark44 Pty. Limited [member] |
Member |
|
|
ttm:Spark44PtyLimitedMember |
| 2652 |
Tata Technologies Pte Limited [member] |
Member |
|
|
ttm:TataTechnologiesPteLimitedMember |
| 2653 |
Tata Technologies (Thailand) Limited [member] |
Member |
|
|
ttm:TataTechnologiesThailandLimitedMember |
| 2654 |
Tata Manufacturing Technologies (Shanghai) Limited [member] |
Member |
|
|
ttm:TataManufacturingTechnologiesShanghaiLimitedMember |
| 2655 |
INCAT International Plc. [member] |
Member |
|
|
ttm:INCATInternationalPlcMember |
| 2656 |
INCAT GmbH [member] |
Member |
|
|
ttm:NCATGmbHMember |
| 2657 |
Tata Technologies Europe Limited [member] |
Member |
|
|
ttm:TataTechnologiesEuropeLimitedMember |
| 2658 |
Escenda Engineering AB [member] |
Member |
|
|
ttm:EscendaEngineeringABMember |
| 2659 |
Tata Technologies Inc. [member] |
Member |
|
|
ttm:TataTechnologiesIncMember |
| 2660 |
Tata Technologies de Mexico, S.A. de C.V. [member] |
Member |
|
|
ttm:TataTechnologiesDeMexicoSADeCVMember |
| 2661 |
Cambric GmbH [member] |
Member |
|
|
ttm:CambricGmbHMember |
| 2662 |
Cambric Limited [member] |
Member |
|
|
ttm:CambricLimitedMember |
| 2663 |
Tata Technologies SRL Romania [member] |
Member |
|
|
ttm:TataTechnologiesSRLRomaniaMember |
| 2664 |
Tata Motors Finance Solutions Limited [member] |
Member |
|
|
ttm:TataMotorsFinanceSolutionsLimitedMember |
| 2665 |
Tata Motors Finance Limited [member] |
Member |
|
|
ttm:TataMotorsFinanceLimitedMember |
| 2666 |
Disclosure of subsidiaries [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems |
| 2667 |
Name of the Subsidiary Company |
Concept (Text/String) |
For Period |
|
ifrs-full:NameOfSubsidiary |
| 2668 |
Country of incorporation |
Concept (Text/String) |
For Period |
|
ifrs-full:CountryOfIncorporationOrResidenceOfSubsidiary |
| 2669 |
% of Equity Shareholding |
Concept (Percent) |
For Period |
|
ifrs-full:ProportionOfOwnershipInterestInSubsidiary |
| 2670 |
1210 - Disclosure - Schedule 1 - Condensed Financial Information of Tata Motors Limited "Parent Only"- Balance Sheet (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSchedule1CondensedFinancialInformationOfTataMotorsLimitedParentOnlyBalanceSheet |
| 2671 |
Disclosure of condensed financial information of parent company [table] |
Table |
* |
* |
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyTable |
| 2672 |
Legal entity [axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2673 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2674 |
Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:ParentMember |
| 2675 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 2676 |
Share capital [Member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 2677 |
Ordinary shares [Member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 2678 |
'A' Ordinary shares [Member] |
Member |
|
|
ttm:AOrdinarySharesMember |
| 2679 |
Disclosure of condensed financial information of parent company [line items] |
LineItems |
|
|
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyLineItems |
| 2680 |
ASSETS: |
Abstract |
|
|
ifrs-full:AssetsAbstract |
| 2681 |
Current assets: |
Abstract |
|
|
ifrs-full:CurrentAssetsAbstract |
| 2682 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 2683 |
Short-term deposits |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents |
| 2684 |
Finance receivables |
Concept (Monetary) |
As Of |
Debit |
ttm:FinanceReceivablesCurrent |
| 2685 |
Trade receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTradeReceivables |
| 2686 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentInvestments |
| 2687 |
Other financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentFinancialAssets |
| 2688 |
Inventories |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 2689 |
Other current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentNonfinancialAssets |
| 2690 |
Assets classified as held for sale |
Concept (Monetary) |
As Of |
Debit |
ttm:CurrentAssetsClassifiedAsHeldForSale |
| 2691 |
Investments in equity accounted investees (held for sale) |
Concept (Monetary) |
As Of |
Debit |
ttm:InvestmentsInEquityAccountedInvesteesHeldForSale |
| 2692 |
Current income tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsCurrent |
| 2693 |
Total current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 2694 |
Non-current assets: |
Abstract |
|
|
ifrs-full:NoncurrentAssetsAbstract |
| 2695 |
Investments |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 2696 |
Other financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentFinancialAssets |
| 2697 |
Property, plant and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 2698 |
Goodwill |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Goodwill |
| 2699 |
Intangible assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:IntangibleAssetsOtherThanGoodwill |
| 2700 |
Investments in subsidiaries, joint ventures and equity accounted investees |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InvestmentAccountedForUsingEquityMethod |
| 2701 |
Non-current income tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentTaxAssetsNoncurrent |
| 2702 |
Other non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentNonfinancialAssets |
| 2703 |
Total non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentAssets |
| 2704 |
Total assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 2705 |
LIABILITIES AND EQUITY: |
Abstract |
|
|
ifrs-full:EquityAndLiabilitiesAbstract |
| 2706 |
Liabilities: |
Abstract |
|
|
ifrs-full:LiabilitiesAbstract |
| 2707 |
Current liabilities: |
Abstract |
|
|
ifrs-full:CurrentLiabilitiesAbstract |
| 2708 |
Accounts payable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers |
| 2709 |
Acceptances |
Concept (Monetary) |
As Of |
Credit |
ttm:CurrentAcceptances |
| 2710 |
Short-term borrowings and current portion of long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 2711 |
Other financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentFinancialLiabilities |
| 2712 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentProvisions |
| 2713 |
Other current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherCurrentNonfinancialLiabilities |
| 2714 |
Current income tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 2715 |
Total current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 2716 |
Non-current liabilities: |
Abstract |
|
|
ifrs-full:NoncurrentLiabilitiesAbstract |
| 2717 |
Long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 2718 |
Other financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentFinancialLiabilities |
| 2719 |
Deferred income taxes |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 2720 |
Provisions |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentProvisions |
| 2721 |
Other liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentNonfinancialLiabilities |
| 2722 |
Total non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 2723 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 2724 |
Equity: |
Abstract |
|
|
ifrs-full:EquityAbstract |
| 2725 |
Ordinary shares |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IssuedCapital |
| 2726 |
Additional paid-in capital |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AdditionalPaidinCapital |
| 2727 |
Reserves |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherReserves |
| 2728 |
Other components of equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherEquityInterest |
| 2729 |
Equity attributable to shareholders of Tata Motors Limited |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAttributableToOwnersOfParent |
| 2730 |
Non-controlling interests |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncontrollingInterests |
| 2731 |
Total equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 2732 |
Total liabilities and equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAndLiabilities |
| 2733 |
1211 - Disclosure - Schedule 1 - Condensed Financial Information of Tata Motors Limited "Parent only"- Income Statement (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSchedule1CondensedFinancialInformationOfTataMotorsLimitedParentOnlyIncomeStatement |
| 2734 |
Disclosure of condensed financial information of parent company [table] |
Table |
* |
* |
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyTable |
| 2735 |
Legal entity [axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2736 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2737 |
Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:ParentMember |
| 2738 |
Disclosure of condensed financial information of parent company [line items] |
LineItems |
|
|
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyLineItems |
| 2739 |
Revenues |
Concept (Monetary) |
For Period |
Credit |
ttm:RevenueFromSaleOfGoodsAndServices |
| 2740 |
Finance revenues |
Concept (Monetary) |
For Period |
Credit |
ttm:FinanceRevenues |
| 2741 |
Total revenues |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 2742 |
Change in inventories of finished goods and work-in-progress |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ChangesInInventoriesOfFinishedGoodsAndWorkInProgress |
| 2743 |
Purchase of products for sale |
Concept (Monetary) |
For Period |
Debit |
ttm:PurchaseOfProductsForSale |
| 2744 |
Raw materials, components, and consumables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:RawMaterialsAndConsumablesUsed |
| 2745 |
Employee cost |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EmployeeBenefitsExpense |
| 2746 |
Depreciation and amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 2747 |
Other expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherExpenseByNature |
| 2748 |
Expenditure capitalized |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherWorkPerformedByEntityAndCapitalised |
| 2749 |
Assets written off/loss on sale of assets and others (net) |
Concept (Monetary) |
For Period |
Credit |
ttm:AssetsWrittenOffOrLossOnSaleOfAssetsAndOthersNet |
| 2750 |
Other (income)/loss (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherGainsLosses |
| 2751 |
Foreign exchange (gain)/loss (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss |
| 2752 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 2753 |
Interest expense (net) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpense |
| 2754 |
Net income before tax |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 2755 |
Income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 2756 |
Net income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 2757 |
1212 - Disclosure - Schedule 1 - Condensed Financial Information of Tata Motors Limited - Consolidated Statements of Comprehensive Income (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSchedule1CondensedFinancialInformationOfTataMotorsLimitedConsolidatedStatementsOfComprehensiveIncome |
| 2758 |
Disclosure of condensed financial information of parent company [table] |
Table |
* |
* |
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyTable |
| 2759 |
Legal entity [axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2760 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2761 |
Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:ParentMember |
| 2762 |
Disclosure of condensed financial information of parent company [line items] |
LineItems |
|
|
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyLineItems |
| 2763 |
Net income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 2764 |
Other comprehensive income : |
Abstract |
|
|
ifrs-full:OtherComprehensiveIncomeAbstract |
| 2765 |
(i) Items that will not be reclassified subsequently to profit and loss : |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 2766 |
Remeasurement gains and (losses) on defined benefit obligations (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans |
| 2767 |
Income tax relating to items that will not be reclassified subsequently |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss |
| 2768 |
Items that will not be reclassified subsequently to profit and loss |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax |
| 2769 |
(ii) Items that may be reclassified subsequently to profit and loss : |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 2770 |
Gain/(loss) on cash flow hedges (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges |
| 2771 |
Available-for-sale investments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets |
| 2772 |
Income tax relating to items that will be reclassified |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss |
| 2773 |
Items that may be reclassified subsequently to profit and loss |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax |
| 2774 |
Other comprehensive income/(loss) for the year, net of tax (i+ii) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 2775 |
Total comprehensive income for the year |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 2776 |
1213 - Disclosure - Schedule 1 - Condensed Financial Information of Tata Motors Limited -Statements of Cash Flows (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSchedule1CondensedFinancialInformationOfTataMotorsLimitedStatementsOfCashFlows |
| 2777 |
Disclosure of condensed financial information of parent company [table] |
Table |
* |
* |
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyTable |
| 2778 |
Legal entity [axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2779 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2780 |
Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:ParentMember |
| 2781 |
Disclosure of condensed financial information of parent company [line items] |
LineItems |
|
|
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyLineItems |
| 2782 |
Cash flows from operating activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract |
| 2783 |
Net income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 2784 |
Adjustments for: |
Abstract |
|
|
ifrs-full:AdjustmentsForReconcileProfitLossAbstract |
| 2785 |
Depreciation and amortization expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DepreciationAndAmortisationExpense |
| 2786 |
Inventory write-down |
Concept (Monetary) |
For Period |
|
ifrs-full:InventoryWritedown2011 |
| 2787 |
Allowances for trade and other receivables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables |
| 2788 |
Loss on sale of assets/assets written off and others (net) |
Concept (Monetary) |
For Period |
Debit |
ttm:LossOnSaleOfAssetsWrittenOffAndOthersNet |
| 2789 |
(Gain) on sale/loss on fair valuation of available-for-sale investments (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnAvailableforsaleFinancialAssets |
| 2790 |
Gain on fair value of below market interest loans |
Concept (Monetary) |
For Period |
Credit |
ttm:GainOnFairValueOfBelowMarketInterestLoans |
| 2791 |
Foreign exchange (gain)/loss (net) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains |
| 2792 |
Income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 2793 |
Interest expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestExpense |
| 2794 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:FinanceIncome |
| 2795 |
Dividend income and income on mutual funds |
Concept (Monetary) |
For Period |
Credit |
ttm:AdjustmentsForDividendIncomeAndIncomeOnMutualFunds |
| 2796 |
Provision for impairment of investment in a subsidiary |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForProvisionForImpairmentOfInvestmentInSubsidiary |
| 2797 |
Cash flows from operating activities before changes in following assets and liabilities |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital |
| 2798 |
Trade receivables |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable |
| 2799 |
Finance receivables |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForDecreaseIncreaseInFinanceReceivables |
| 2800 |
Other financial assets |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForDecreaseIncreaseInOtherFinancialAssets |
| 2801 |
Other current assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets |
| 2802 |
Inventories |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInInventories |
| 2803 |
Other non-current assets |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForDecreaseIncreaseInOtherNonCurrentAssets |
| 2804 |
Accounts payable |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable |
| 2805 |
Acceptances |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForIncreaseDecreaseInAcceptances |
| 2806 |
Other current liabilities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncreaseDecreaseInOtherCurrentLiabilities |
| 2807 |
Other financial liabilities |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForIncreaseDecreaseInOtherFinancialLiabilities |
| 2808 |
Other non-current liabilities |
Concept (Monetary) |
For Period |
Debit |
ttm:AdjustmentsForIncreaseDecreaseInOtherNoncurrentLiabilities |
| 2809 |
Provisions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForProvisions |
| 2810 |
Cash generated from operations |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperations |
| 2811 |
Income tax paid (net) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities |
| 2812 |
Net cash provided by operating activities |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperatingActivities |
| 2813 |
Cash flows from investing activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract |
| 2814 |
Investments in Mutual Fund (purchased)/sold (net) |
Concept (Monetary) |
For Period |
Debit |
ttm:InvestmentInMutualFundPurchasedSoldNetClassifiedAsInvestingActivities |
| 2815 |
Investments in subsidiary companies |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries |
| 2816 |
Investments in joint ventures |
Concept (Monetary) |
For Period |
Credit |
ttm:PaymentsForPurchaseOfInvestmentsInAssociatesAndJointVentures |
| 2817 |
Purchase of available-for-sale investments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 2818 |
Advance towards investments in subsidiary companies |
Concept (Monetary) |
For Period |
Credit |
ttm:AdvanceTowardsInvestmentInSubsidiaryCompaniesunderInvestingActivities |
| 2819 |
Loans to subsidiaries and equity accounted investees |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CashAdvancesAndLoansMadeToRelatedParties |
| 2820 |
Loans to others |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities |
| 2821 |
Proceeds from sale of investments in subsidiary companies |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod |
| 2822 |
Proceeds from sale of investments in other companies |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries |
| 2823 |
Repayment of loans by joint operation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties |
| 2824 |
Repayment of loans by others |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities |
| 2825 |
Deposits with banks/financial institutions |
Concept (Monetary) |
For Period |
Credit |
ttm:DepositsWithBanksFinancialInstitutionsInvestingActivities |
| 2826 |
Realization of deposits with banks/financial institutions |
Concept (Monetary) |
For Period |
Debit |
ttm:RealizationOfDepositsWithBanksFinancialInstitutionsInvestingActivities |
| 2827 |
Deposit of margin money and other restricted deposits |
Concept (Monetary) |
For Period |
Credit |
ttm:DepositsOfMarginMoneyAndOtherRestrictedDeposits |
| 2828 |
Realization of margin money and other restricted deposits |
Concept (Monetary) |
For Period |
Debit |
ttm:RealizationOfMarginMoneyAndOtherRestrictedDeposits |
| 2829 |
(Increase)/decrease in short term inter-corporate deposits |
Concept (Monetary) |
For Period |
Debit |
ttm:CashFlowsFromUsedInDecreaseIncreaseInShorttermIntercorporateDeposits |
| 2830 |
Interest received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestReceivedClassifiedAsInvestingActivities |
| 2831 |
Dividend received |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsReceivedClassifiedAsInvestingActivities |
| 2832 |
Payments for property, plant and equipment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities |
| 2833 |
Proceeds from sale of property, plant and equipment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities |
| 2834 |
Payments for intangible assets |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities |
| 2835 |
Net cash used in investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInInvestingActivities |
| 2836 |
Cash flows from financing activities: |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract |
| 2837 |
Proceeds from issuance of shares |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromIssueOfOrdinaryShares |
| 2838 |
Dividends paid (including dividend distribution tax) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DividendsPaidClassifiedAsFinancingActivities |
| 2839 |
Interest paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestPaidClassifiedAsFinancingActivities |
| 2840 |
Proceeds from issuance of short-term debt |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromCurrentBorrowings |
| 2841 |
Repayment of short-term debt |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfCurrentBorrowings |
| 2842 |
Net change in other short-term debt (with maturity up to three months) |
Concept (Monetary) |
For Period |
Debit |
ttm:NetChangeInOtherShortTermDebtWithMaturityUpToThreeMonths |
| 2843 |
Proceeds from issuance of long-term debt |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromNoncurrentBorrowings |
| 2844 |
Repayments of long-term debt |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfNoncurrentBorrowings |
| 2845 |
Net cash provided by/(used in) financing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInFinancingActivities |
| 2846 |
Net change in cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges |
| 2847 |
Effect of foreign exchange on cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents |
| 2848 |
Cash and cash equivalents, beginning of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 2849 |
Cash and cash equivalents, end of the year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 2850 |
Non-cash transactions: |
Abstract |
|
|
ttm:NonCashTransactionsAbstract |
| 2851 |
Liability towards property, plant and equipment and intangible assets purchased on credit/deferred credit |
Concept (Monetary) |
For Period |
Credit |
ttm:LiabilityTowardsPropertyPlantAndEquipmentAndIntangibleAssetsPurchasedOnCreditDeferredCredit |
| 2852 |
Increase / (decrease) in liabilities arising transactions : |
Abstract |
|
|
ifrs-full:ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract |
| 2853 |
Exchange differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities |
| 2854 |
Amortisation / EIR adjustments of prepaid borrowings |
Concept (Monetary) |
For Period |
Credit |
ttm:AmortisationOfPrepaidDiscountingCharges |
| 2855 |
1214 - Disclosure - Schedule 1 - Condensed Financial Information of Tata Motors Limited -Statements of Cash Flows (Parenthetical) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSchedule1CondensedFinancialInformationOfTataMotorsLimitedStatementsOfCashFlowsParenthetical |
| 2856 |
Disclosure of condensed financial information of parent company [table] |
Table |
* |
* |
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyTable |
| 2857 |
Legal entity [axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2858 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2859 |
Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:ParentMember |
| 2860 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 2861 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 2862 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 2863 |
Disclosure of condensed financial information of parent company [line items] |
LineItems |
|
|
ttm:DisclosureOfCondensedFinancialInformationOfParentCompanyLineItems |
| 2864 |
Proceeds from issuance of shares |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromIssueOfOrdinaryShares |
| 2865 |
1215 - Disclosure - Schedule 1 - Condensed Financial Information of Tata Motors Limited ("Parent Company") on a Standalone Basis - Summary of Long-term Debt (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSchedule1CondensedFinancialInformationOfTataMotorsLimitedParentCompanyOnAStandaloneBasisSummaryOfLongtermDebt |
| 2866 |
Disclosure of maturity analysis for non-derivative financial liabilities [table] |
Table |
* |
* |
ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable |
| 2867 |
Legal entity [axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2868 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2869 |
Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:ParentMember |
| 2870 |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems |
| 2871 |
Non-convertible debentures |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NotesAndDebenturesIssued |
| 2872 |
Buyers credit from banks at floating interest rate |
Concept (Monetary) |
As Of |
Credit |
ttm:BuyersCreditFromBanksAtFloatingInterestRate |
| 2873 |
Senior notes |
Concept (Monetary) |
As Of |
Credit |
ttm:SeniorNotes1 |
| 2874 |
Loan from banks/financial institution |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LoansReceived |
| 2875 |
Others |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherBorrowings |
| 2876 |
Total |
Concept (Monetary) |
As Of |
Credit |
ttm:CurrentAndNoncurrentPortionOfLongtermBorrowings |
| 2877 |
Less: current portion |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentPortionOfLongtermBorrowings |
| 2878 |
Long-term debt |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 2879 |
1216 - Disclosure - Schedule 1 - Condensed Financial Information of Tata Motors Limited ("Parent Company") on a Standalone Basis - Summary of Contractual Maturities of Long-term Debt (Including Interest Payment) (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSchedule1CondensedFinancialInformationOfTataMotorsLimitedParentCompanyOnAStandaloneBasisSummaryOfContractualMaturitiesOfLongtermDebtIncludingInterestPayment |
| 2880 |
Disclosure of maturity analysis for non-derivative financial liabilities [table] |
Table |
* |
* |
ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable |
| 2881 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 2882 |
Aggregated time bands [Member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 2883 |
Later than one year and not later than two years [Member] |
Member |
|
|
ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember |
| 2884 |
Later than two years and not later than three years [Member] |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember |
| 2885 |
Later than three years and not later than five years [Member] |
Member |
|
|
ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember |
| 2886 |
Later than five years [Member] |
Member |
|
|
ifrs-full:LaterThanFiveYearsMember |
| 2887 |
Legal entity [axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2888 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2889 |
Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:ParentMember |
| 2890 |
Disclosure of maturity analysis for non-derivative financial liabilities [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems |
| 2891 |
Contractual maturities of long-term debt (including interest payment) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows |
| 2892 |
1217 - Disclosure - Schedule 1 - Condensed Financial Information of Tata Motors Limited ("Parent Company") on a Standalone Basis - Additional Information (Detail) |
Network |
* |
* |
http://imetrix.edgar-online.com/taxonomy/role/DisclosureSchedule1CondensedFinancialInformationOfTataMotorsLimitedParentCompanyOnAStandaloneBasisAdditionalInformation |
| 2893 |
Disclosure of reclassifications or changes in presentation [table] |
Table |
* |
* |
ifrs-full:DisclosureOfReclassificationsOrChangesInPresentationTable |
| 2894 |
Legal entity [axis] |
Axis |
|
|
dei:LegalEntityAxis |
| 2895 |
Entity [Domain] |
Member |
|
|
dei:EntityDomain |
| 2896 |
Tata Motors Limited [Member] |
Member |
|
|
ifrs-full:ParentMember |
| 2897 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 2898 |
Ranges [Member] |
Member |
|
|
ifrs-full:RangesMember |
| 2899 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 2900 |
Disclosure of reclassifications or changes in presentation [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfReclassificationsOrChangesInPresentationLineItems |
| 2901 |
Threshold percentage of restricted net assets to consolidated net assets |
Concept (Percent) |
As Of |
|
ttm:ThresholdPercentageOfRestrictedNetAssetsToConsolidatedNetAssets |
| 2902 |
Restricted net assets not available for distribution |
Concept (Monetary) |
As Of |
Debit |
ttm:RestrictedNetAssetsNotAvailableForDistribution |
| 2903 |
Cash dividends paid to the parent company by its subsidiaries and equity accounted investees |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsReceivedFromInvestmentsAccountedForUsingEquityMethodClassifiedAsInvestingActivities |