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Goodwill and Indefinite-Lived Intangibles (Changes in the Carrying Amount of Goodwill and Indefinite-Lived Intangibles) (Details) (USD $) In Millions, unless otherwise specified	4 Months Ended	9 Months Ended
	Dec. 29, 2012	Sep. 07, 2013
Goodwill [Roll Forward]
Goodwill, Beginning balance	$ 39.6	$ 459.9
Goodwill, Acquisition	419.6
Goodwill, Acquisition adjustments		(11.1)
Goodwill, Foreign currency translation effects	0.7	(3.0)
Goodwill, Ending balance	459.9	445.8
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-lived Intangibles, Beginning balance	17.9	679.8
Indefinite-lived Intangibles, Acquisition	661.8
Indefinite-lived Intangibles, Acquisition adjustments		9.0
Indefinite-lived Intangibles, Foreign currency translation effects	0.1	3.9
Indefinite-lived Intangibles, Ending balance	679.8	692.7
Goodwill and Indefinite-lived Intangible Assets [Roll Forward]
Goodwill and Indefinite-lived Intangibles, Beginning balance	57.5	1,139.7
Goodwill and Indefinite-lived Intangibles, Acquisition	1,081.4
Goodwill and Indefinite-lived Intangibles, Acquisition adjustments		(2.1)
Goodwill and Indefinite-lived Intangibles, Foreign currency translation effects	0.8	0.9
Goodwill and Indefinite-lived Intangibles, Ending balance	$ 1,139.7	$ 1,138.5

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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