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Income Taxes (Changes in Unrecognized Tax Benefit) (Details) $ in Millions | 12 Months Ended
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Sep. 29, 2017 USD ($)
Income Tax Disclosure [Abstract] |
Balance at September 30, 2016 | $ 79.7
Decreases based on positions related to prior years | (0.9)
Increases based on positions related to current year | 14.5
Decreases relating to settlements with taxing authorities | (2.6)
Decreases relating to lapses of applicable statues of limitations | (0.3)
Balance at September 29, 2017 | $ 90.4

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- Definition Amount of unrecognized tax benefits. + References Reference 1: 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=65882285&loc=SL6600010-109319 Reference 2: 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 + Details
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 + Details
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