Goodwill and Other Intangible Assets - Intangible categories (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jul. 02, 2016	Apr. 02, 2016	Dec. 31, 2015	Jun. 27, 2015	Jul. 02, 2016		Jun. 27, 2015	[1]	Mar. 01, 2016	[2]	Jan. 22, 2016	Mar. 30, 2015
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets subject to amortization, gross	$ 4,506.3		$ 3,705.3		$ 4,506.3
Intangible assets subject to amortization, accumulated amortization	898.7		732.2		898.7
Intangible assets not subject to amortization	1,355.3		1,916.3		1,355.3
Total other intangible assets	5,861.6		5,621.6		5,861.6
Intangible assets amortization expense	$ 88.9			$ 70.1	174.1	[1]	$ 105.3
Definite-lived assets useful life	20 years
Trademarks, trade names, and brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets not subject to amortization	$ 1,288.4		1,868.1		1,288.4
In-process research and development
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets not subject to amortization	66.9		48.2		66.9				$ 24.9		$ 0.0
Distribution and license agreements, supply agreements
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets subject to amortization, gross	245.7		242.4		245.7
Intangible assets subject to amortization, accumulated amortization	96.5		77.7		96.5
Developed product technology, formulation and product rights
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets subject to amortization, gross	1,788.9		1,387.6		1,788.9
Intangible assets subject to amortization, accumulated amortization	492.1		426.0		492.1
Customer relationships and distribution networks
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets subject to amortization, gross	1,545.7		1,520.7		1,545.7
Intangible assets subject to amortization, accumulated amortization	256.6		193.0		256.6
Trademarks, trade names, and brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets subject to amortization, gross	911.4		539.4		911.4
Intangible assets subject to amortization, accumulated amortization	42.6		22.8		42.6
Non-compete agreements
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets subject to amortization, gross	14.6		15.2		14.6
Intangible assets subject to amortization, accumulated amortization	10.9		12.7		$ 10.9
Omega | Brands
Finite And Indefinite Lived Assets By Major Class [Line Items]
Impairment of intangible assets, indefinite-lived		$ 273.4
Impairment of intangible assets, finite-lived			$ 185.1
Other indefinite-lived intangible assets	$ 364.5
Omega | In-process research and development
Finite And Indefinite Lived Assets By Major Class [Line Items]
Intangible assets not subject to amortization												$ 0.0

[1] The BCH segment was created on March 30, 2015 as a result of the Omega acquisition, thus data for the six months ended June 27, 2015 includes only three months of results from operations attributable to Omega.

[2] * Opening balance sheet is preliminary