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Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Sep. 29, 2012 | Oct. 01, 2011 | Dec. 31, 2011
Income Taxes [Line Items] |  |  |
Income tax rate | 20.10% | 30.70% |
Total gross liability for unrecognized tax benefits | $ 49.1 | $ 24.6 | $ 26.5
Shared Tax Liabilities description | Costs and expenses associated with the management of Shared Tax Liabilities, Distribution Taxes and BHS Tax Liabilities will generally be shared 20% by us, 27.5% by ADT and 52.5% by Tyco. |  |
Percentage of Shared Tax Liabilities | 20.00% |  |
2012 Tax Sharing Agreement |  |  |
Income Taxes [Line Items] |  |  |
Shared Tax Liabilities description | Tyco is responsible for the first $500 million of Shared Tax Liabilities. We and ADT will share 42% and 58%, respectively, of the next $225 million of Shared Tax Liabilities. We, ADT and Tyco will share 20%, 27.5% and 52.5%, respectively, of Shared Tax Liabilities above $725 million. |  |
Next $225 million of Shared Tax Liabilities | 2012 Tax Sharing Agreement |  |  |
Income Taxes [Line Items] |  |  |
Percentage of Shared Tax Liabilities | 42.00% |  |
Shared Tax Liabilities above $725 million | 2012 Tax Sharing Agreement |  |  |
Income Taxes [Line Items] |  |  |
Percentage of Shared Tax Liabilities | 20.00% |  |
ADT |  |  |
Income Taxes [Line Items] |  |  |
Percentage of Shared Tax Liabilities | 27.50% |  |
ADT | Next $225 million of Shared Tax Liabilities | 2012 Tax Sharing Agreement |  |  |
Income Taxes [Line Items] |  |  |
Percentage of Shared Tax Liabilities | 58.00% |  |
ADT | Shared Tax Liabilities above $725 million | 2012 Tax Sharing Agreement |  |  |
Income Taxes [Line Items] |  |  |
Percentage of Shared Tax Liabilities | 27.50% |  |
Tyco |  |  |
Income Taxes [Line Items] |  |  |
Percentage of Shared Tax Liabilities | 52.50% |  |
Tyco | Shared Tax Liabilities above $725 million | 2012 Tax Sharing Agreement |  |  |
Income Taxes [Line Items] |  |  |
Percentage of Shared Tax Liabilities | 52.50% |  |
Assumed in Merger |  |  |
Income Taxes [Line Items] |  |  |
Total gross liability for unrecognized tax benefits | $ 35.1 |  |

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- Definition A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 + Details
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- Definition The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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