Income Taxes - Schedule of Receivables and Liabilities Related to Tax Sharing Agreements (Details) - USD ($) $ in Millions	Jun. 24, 2016	Sep. 25, 2015
2012 Tax Sharing Agreement
Tax Sharing Agreement [Line Items]
Other assets	$ 0	$ 0
Tax sharing agreement related receivables	0	0
Accrued and other current liabilities	0	0
Other liabilities	(16)	(46)
Tax sharing agreement related liabilities	(16)	(46)
Net liability	(16)	(46)
2007 Tax Sharing Agreement
Tax Sharing Agreement [Line Items]
Other assets	0	19
Tax sharing agreement related receivables	0	19
Accrued and other current liabilities	(30)	(15)
Other liabilities	0	(194)
Tax sharing agreement related liabilities	(30)	(209)
Net liability	$ (30)	$ (190)

The amount recorded in accrued and other current liabilities under a tax sharing agreement, as of the balance sheet date.

No definition available.

Name:	tyc_AccruedAndOtherCurrentLiabilitiesUnderTaxSharingAgreement
Namespace Prefix:	tyc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The noncurrent portion of the liability recorded as of the balance sheet date under a tax sharing agreement, included in other liabilities.

No definition available.

Name:	tyc_OtherLiabilitiesUnderTaxSharingAgreement
Namespace Prefix:	tyc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The tax sharing agreement receivable and related liabilities net recorded as of the balance sheet date under a tax sharing agreement.

No definition available.

Name:	tyc_ReceivableAndTaxSharingAgreementRelatedLiabilitiesNet
Namespace Prefix:	tyc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The net receivable as of the balance sheet date resulting from a former subsidiary's liability under a tax sharing agreement.

No definition available.

Name:	tyc_ReceivableFromFormerSubsidiaryPerTaxSharingAgreementNetReceivable
Namespace Prefix:	tyc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The receivable recorded in other assets as of the balance sheet date resulting from a former subsidiary's liability under a tax sharing agreement.

No definition available.

Name:	tyc_ReceivableFromFormerSubsidiaryPerTaxSharingAgreementReportedInOtherAssets
Namespace Prefix:	tyc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

-- None. No documentation exists for this element. --

No definition available.

Name:	tyc_TaxSharingAgreementLineItems
Namespace Prefix:	tyc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The tax sharing agreement related liabilities recorded as of the balance sheet date under a tax sharing agreement.

No definition available.

Name:	tyc_TaxSharingAgreementRelatedLiabilities
Namespace Prefix:	tyc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	tyc_TaxSharingAgreementNameAxis=tyc_TaxSharingAgreement2012Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	tyc_TaxSharingAgreementNameAxis=tyc_TaxSharingAgreement2007Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: