Basis of Presentation and Summary of Significant Accounting Policies	6 Months Ended
Mar. 28, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation—The Consolidated Financial Statements included herein are unaudited, but in the opinion of management, such financial statements include all adjustments, consisting of normal recurring adjustments, necessary to summarize fairly the Company's financial position, results of operations and cash flows for the interim period. The unaudited Consolidated Financial Statements include the consolidated results of Tyco International Ltd., a corporation organized under the laws of Switzerland, and its subsidiaries (Tyco and all its subsidiaries, hereinafter collectively referred to as the "Company" or "Tyco"). The unaudited Consolidated Financial Statements have been prepared in United States dollars ("USD") and in accordance with the instructions to Form 10-Q under the Securities and Exchange Act of 1934, as amended. The results reported in these unaudited Consolidated Financial Statements should not be taken as indicative of results that may be expected for the entire year. These financial statements should be read in conjunction with the Consolidated Financial Statements and accompanying notes contained in the Company's Annual Report on Form 10-K for the fiscal year ended September 27, 2013 (the "2013 Form 10-K"). References to 2014 and 2013 are to Tyco's fiscal quarters ending March 28, 2014 and March 29, 2013, respectively, unless otherwise indicated. The Company has a 52 or 53-week fiscal year that ends on the last Friday in September. Fiscal years 2014 and 2013 are both 52-week years. Reclassifications - Certain prior period amounts have been reclassified to conform with current period presentation. Specifically, the Company has reclassified its South Korean security business to income from discontinued operations in the Consolidated Statements of Operations and assets and liabilities held for sale within the Consolidated Balance Sheets as it satisfied the criteria to be presented as a discontinued operation. See Note 3. Recently Adopted Accounting Pronouncements—In January 2013, the Financial Accounting Standards Board ("FASB") issued authoritative guidance clarifying the scope of disclosures about offsetting assets and liabilities. The guidance clarifies that the scope of the disclosures applies to derivatives accounted for in accordance with authoritative guidance for derivatives and hedging, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that either offset or are subject to an enforceable master netting agreement or similar agreement. The guidance is applied retrospectively and became effective for Tyco in the first quarter of fiscal 2014. The adoption of this guidance did not have a material impact on the Company's disclosures. In February 2013, the FASB issued authoritative guidance for the reporting of amounts reclassified out of Accumulated other comprehensive income ("AOCI"). The amendment did not change the current requirements for reporting net income or Other comprehensive income ("OCI") in the financial statements. The guidance requires the presentation, either on the face of the statement where net income is presented or in the notes, of the significant reclassifications out of AOCI by the respective line items of net income if the amount reclassified is required under U.S. generally accepted accounting principles ("U.S. GAAP") to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, the amendment requires a cross-reference to other disclosures under U.S. GAAP that provide additional detail about those amounts. The guidance became effective for Tyco in the first quarter of fiscal 2014 and additional disclosures are provided in Note 13. Recently Issued Accounting Pronouncements—In March 2013, the FASB issued authoritative guidance to resolve diversity in practice on the accounting for the cumulative translation adjustment ("CTA") when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets within a foreign entity. The guidance requires that the parent release any CTA into net income when the parent ceases to have a controlling financial interest in a subsidiary or group of assets within a foreign entity which results in a substantially complete liquidation of the foreign entity; when the sale of an investment in a foreign entity results in the loss of a controlling financial interest; or where an acquirer obtains control of an acquiree in which it had an equity interest immediately before the acquisition date. The guidance does not change the requirement to release a pro rata portion of the CTA into net income upon a partial sale of an equity method investment that is a foreign entity. The guidance will be effective for Tyco in the first quarter of fiscal 2015, with early adoption permitted. The Company is currently assessing the timing of its adoption along with what impact, if any, the guidance will have upon adoption. In July 2013, the FASB issued authoritative guidance for the presentation of an unrecognized tax benefit when a net operating loss (“NOL”) carryforward, a similar tax loss, or a tax credit carryforward exists. The guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, in the financial statements as a reduction to a deferred tax asset for a NOL carryforward, a similar tax loss, or a tax credit carryforward. If the NOL carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the jurisdiction or the tax law of the jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit will be presented in the financial statements as a liability and will not be combined with deferred tax assets. This guidance does not require any additional recurring disclosures and will be effective for Tyco the first fiscal quarter of fiscal 2015. The Company is currently assessing the impact, if any, the guidance will have upon adoption. In April 2014, the FASB issued authoritative guidance to change the criteria for reporting discontinued operations. Under the new guidance, only disposals representing a strategic shift in a company's operations and financial results should be reported as discontinued operations, with expanded disclosures. In addition, disclosure of the pre-tax income attributable to a disposal of a significant part of an organization that does not qualify as a discontinued operation is required. This guidance is effective for Tyco in the first quarter of fiscal 2016, with early adoption permitted. The Company is currently assessing the impact, if any, the guidance will have upon adoption.

Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation—The Consolidated Financial Statements included herein are unaudited, but in the opinion of management, such financial statements include all adjustments, consisting of normal recurring adjustments, necessary to summarize fairly the Company's financial position, results of operations and cash flows for the interim period. The unaudited Consolidated Financial Statements include the consolidated results of Tyco International Ltd., a corporation organized under the laws of Switzerland, and its subsidiaries (Tyco and all its subsidiaries, hereinafter collectively referred to as the "Company" or "Tyco"). The unaudited Consolidated Financial Statements have been prepared in United States dollars ("USD") and in accordance with the instructions to Form 10-Q under the Securities and Exchange Act of 1934, as amended. The results reported in these unaudited Consolidated Financial Statements should not be taken as indicative of results that may be expected for the entire year. These financial statements should be read in conjunction with the Consolidated Financial Statements and accompanying notes contained in the Company's Annual Report on Form 10-K for the fiscal year ended September 27, 2013 (the "2013 Form 10-K").

References to 2014 and 2013 are to Tyco's fiscal quarters ending March 28, 2014 and March 29, 2013, respectively, unless otherwise indicated.

The Company has a 52 or 53-week fiscal year that ends on the last Friday in September. Fiscal years 2014 and 2013 are both 52-week years.

Reclassifications - Certain prior period amounts have been reclassified to conform with current period presentation. Specifically, the Company has reclassified its South Korean security business to income from discontinued operations in the Consolidated Statements of Operations and assets and liabilities held for sale within the Consolidated Balance Sheets as it satisfied the criteria to be presented as a discontinued operation. See Note 3.

Recently Adopted Accounting Pronouncements—In January 2013, the Financial Accounting Standards Board ("FASB") issued authoritative guidance clarifying the scope of disclosures about offsetting assets and liabilities. The guidance clarifies that the scope of the disclosures applies to derivatives accounted for in accordance with authoritative guidance for derivatives and hedging, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that either offset or are subject to an enforceable master netting agreement or similar agreement. The guidance is applied retrospectively and became effective for Tyco in the first quarter of fiscal 2014. The adoption of this guidance did not have a material impact on the Company's disclosures.

In February 2013, the FASB issued authoritative guidance for the reporting of amounts reclassified out of Accumulated other comprehensive income ("AOCI"). The amendment did not change the current requirements for reporting net income or Other comprehensive income ("OCI") in the financial statements. The guidance requires the presentation, either on the face of the statement where net income is presented or in the notes, of the significant reclassifications out of AOCI by the respective line items of net income if the amount reclassified is required under U.S. generally accepted accounting principles ("U.S. GAAP") to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, the amendment requires a cross-reference to other disclosures under U.S. GAAP that provide additional detail about those amounts. The guidance became effective for Tyco in the first quarter of fiscal 2014 and additional disclosures are provided in Note 13.

Recently Issued Accounting Pronouncements—In March 2013, the FASB issued authoritative guidance to resolve diversity in practice on the accounting for the cumulative translation adjustment ("CTA") when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets within a foreign entity. The guidance requires that the parent release any CTA into net income when the parent ceases to have a controlling financial interest in a subsidiary or group of assets within a foreign entity which results in a substantially complete liquidation of the foreign entity; when the sale of an investment in a foreign entity results in the loss of a controlling financial interest; or where an acquirer obtains control of an acquiree in which it had an equity interest immediately before the acquisition date. The guidance does not change the requirement to release a pro rata portion of the CTA into net income upon a partial sale of an equity method investment that is a foreign entity. The guidance will be effective for Tyco in the first quarter of fiscal 2015, with early adoption permitted. The Company is currently assessing the timing of its adoption along with what impact, if any, the guidance will have upon adoption.

In July 2013, the FASB issued authoritative guidance for the presentation of an unrecognized tax benefit when a net operating loss (“NOL”) carryforward, a similar tax loss, or a tax credit carryforward exists. The guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, in the financial statements as a reduction to a deferred tax asset for a NOL carryforward, a similar tax loss, or a tax credit carryforward. If the NOL carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the jurisdiction or the tax law of the jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit will be presented in the financial statements as a liability and will not be combined with deferred tax assets. This guidance does not require any additional recurring disclosures and will be effective for Tyco the first fiscal quarter of fiscal 2015. The Company is currently assessing the impact, if any, the guidance will have upon adoption.

In April 2014, the FASB issued authoritative guidance to change the criteria for reporting discontinued operations. Under the new guidance, only disposals representing a strategic shift in a company's operations and financial results should be reported as discontinued operations, with expanded disclosures. In addition, disclosure of the pre-tax income attributable to a disposal of a significant part of an organization that does not qualify as a discontinued operation is required. This guidance is effective for Tyco in the first quarter of fiscal 2016, with early adoption permitted. The Company is currently assessing the impact, if any, the guidance will have upon adoption.