Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of expense arising from share-based payment transactions in which the goods or services received did not qualify for recognition as assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 51
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_a&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of liabilities arising from share-based payment transactions. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Types of share-based payment arrangements [domain]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 51
-Subparagraph b
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_b_i&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The number of share options granted in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph b
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_ii&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

The weighted average share price at the date of exercise for share options that are exercised in a share-based payment arrangement. [Refer: Types of share-based payment arrangements [domain]; Weighted average [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_c&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsInSharebasedPaymentArrangementExercisedDuringPeriodAtDateOfExercise2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

The weighted average exercise price of share options outstanding in a share-based payment arrangement. [Refer: Weighted average [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph b
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_i&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph b
-Clause vi
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_vi&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	instant

Number Of Instruments Or Interests Issued Or Issuable, Ratio Of Equity Interests Issued

No definition available.

Name:	tak_NumberOfInstrumentsOrInterestsIssuedOrIssuableRatioOfEquityInterestsIssued
Namespace Prefix:	tak_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

Number Of Other Equity Instruments Unvested In Share-Based Payment Arrangement

No definition available.

Name:	tak_NumberOfOtherEquityInstrumentsUnvestedInShareBasedPaymentArrangement
Namespace Prefix:	tak_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Share-Based Compensation Arrangement By Share-based Payment Award, Award Vesting Period

No definition available.

Name:	tak_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod
Namespace Prefix:	tak_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Rights, Percentage

No definition available.

Name:	tak_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix:	tak_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

Share-Based Compensation Arrangement By Share-Based Payment Award, Expiration Period

No definition available.

Name:	tak_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriod
Namespace Prefix:	tak_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term

No definition available.

Name:	tak_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm
Namespace Prefix:	tak_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term

No definition available.

Name:	tak_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm
Namespace Prefix:	tak_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Name:	tak_EquityInterestTypeAxis=tak_AmericanDepositarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_BusinessCombinationsAxis=tak_ShireMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	tak_EquityInterestTypeAxis=tak_LiabilitySettledLongTermIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	tak_PlanName1Axis=tak_BoardIncentivePlanEmployeeStockOwnershipPlanAndEquitySettledLongTermIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	tak_PlanName1Axis=tak_BoardIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	tak_PlanName1Axis=tak_EmployeeStockOwnershipPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	tak_PlanName1Axis=tak_EquitySettledLongTermIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tak_ShareBasedPaymentArrangementOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	tak_ShareBasedPaymentArrangementGranteeStatusAxis=tak_NonemployeeShareBasedPaymentArrangementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	tak_ShareBasedPaymentArrangementGranteeStatusAxis=tak_EmployeeShareBasedPaymentArrangementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tak_RestrictedStockUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tak_PerformanceShareUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=tak_PhantomStockAppreciationRightsAndRestrictedStockUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: