Goodwill and Other Intangible Assets - Intangible categories (Details) - USD ($) $ in Millions			3 Months Ended		6 Months Ended
		Apr. 03, 2016	Apr. 02, 2016	Mar. 28, 2015	Dec. 31, 2015	Jan. 22, 2016	[2]	Mar. 30, 2015
Finite And Indefinite Lived Assets By Major Class [Line Items]
Gross			$ 4,198.4		$ 3,705.3
Accumulated Amortization			823.6		732.2
Total indefinite-lived intangibles			1,751.8		1,916.3
Total other intangible assets			5,950.2		5,621.6
Impairment of indefinite-lived intangible assets			273.4
Intangible assets amortization expense			85.3	$ 35.2
Intangible assets useful life		20 years
Brands | Restated Omega
Finite And Indefinite Lived Assets By Major Class [Line Items]
Impairment of indefinite-lived intangible assets			273.4
Impairment of finite-lived intangible assets			273.4		185.1
Other Indefinite-lived Intangible Assets		$ 364.5
Trademarks, trade names, and brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Total indefinite-lived intangibles	[1]		1,682.3		1,868.1
In-process research and development
Finite And Indefinite Lived Assets By Major Class [Line Items]
Total indefinite-lived intangibles			69.5		48.2	$ 0.0
In-process research and development | Restated Omega
Finite And Indefinite Lived Assets By Major Class [Line Items]
Total indefinite-lived intangibles								$ 0.0
Distribution and license agreements, supply agreements
Finite And Indefinite Lived Assets By Major Class [Line Items]
Gross			243.8		242.4
Accumulated Amortization			87.6		77.7
Developed product technology, formulations, and product rights
Finite And Indefinite Lived Assets By Major Class [Line Items]
Gross			1,800.1		1,387.6
Accumulated Amortization			462.3		426.0
Customer relationships and distribution networks
Finite And Indefinite Lived Assets By Major Class [Line Items]
Gross			1,573.3		1,520.7
Accumulated Amortization			229.0		193.0
Trademarks, trade names, and brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Gross			563.6		539.4
Accumulated Amortization			31.2		22.8
Non-compete agreements
Finite And Indefinite Lived Assets By Major Class [Line Items]
Gross			17.6		15.2
Accumulated Amortization			$ 13.5		$ 12.7

[1] * Includes impairment charges of $273.4 million and $185.1 million at April 2, 2016 and December 31, 2015, respectively, as described further below.

[2] * Opening balance sheet is preliminary