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Summary of Significant Accounting Policies - Schedule of Other Assets (Detail) (USD $) In Millions, unless otherwise specified | Sep. 27, 2014 | Sep. 28, 2013
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Accounting Policies [Abstract] |  |
Deferred financing costs | $ 44.9 | $ 60.6
Life insurance contracts | 22.4 | 33.9
Mutual funds | 15.4 | 6.9
Marketable securities | 24.4 | 18.1
Manufacturing access fees | 14.1 | 16.0
Cost-method equity investments | 5.2 | 12.6
Other | 16.2 | 15.8
Other assets | $ 142.6 | $ 163.9

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