The compensation per share amount received under agreement if minority shareholders elect to put their shares to TE.

No definition available.

Name:	tel_AcquiredEntityMinorityShareholdersExchangeCompensationPerShareAmount
Namespace Prefix:	tel_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The recurring annual compensation per share amount under agreement if minority shareholders elect to maintain shares.

+ References

No definition available.

+ Details

Name:	tel_AcquiredEntityMinorityShareholdersRecurringCompensationPerShareAmount
Namespace Prefix:	tel_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)(1)
-URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4845-128472

+ Details

Name:	us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to items of consideration transferred in connection with a business combination for which the initial accounting was incomplete.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 4A
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=128092470&loc=SL65897772-128472

+ Details

Name:	us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfBusinessesAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionAxis=tel_Acquisitions2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=tel_Acquisitions2021Member
Namespace Prefix:
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Balance Type:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=tel_Acquisitions2020Member
Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=tel_DominationAndProfitAndLossTransferAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=tel_FirstSensorAgMember
Namespace Prefix:
Data Type:	na
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Acquisitions - Assets Acquired (Details) € / shares in Units, € in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Sep. 24, 2021 item	Sep. 30, 2022 USD ($) item	Sep. 30, 2022 € / shares	Sep. 24, 2021 USD ($) item	Sep. 25, 2020 USD ($) item	Jul. 31, 2020 USD ($)	Jul. 31, 2020 EUR (€)
Acquisitions
Net cash paid		$ 220		$ 423	$ 339
2022 Acquisitions
Acquisitions
Number of Businesses Acquired \| item		3
Net cash paid		$ 245
2021 Acquisitions
Acquisitions
Number of Businesses Acquired \| item	2			4
Net cash paid				$ 422
Customary net working capital settlement amount		$ 25
2020 Acquisitions
Acquisitions
Number of Businesses Acquired \| item					5
Net cash paid					$ 336
Domination And Profit And Loss Transfer Agreement ("DPLTA") \| First Sensor AG
Acquisitions
Percentage of voting interest acquired		72.00%	72.00%
Fair value of noncontrolling interest						$ 107	€ 96
First Sensor minority shareholders recurring annual compensation (in euro per share) \| € / shares			€ 0.56
First Sensor minority shareholders exchange compensation amount (in euro per share) \| € / shares			€ 33.27