Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Fair Value, Option, Changes in Fair Value, Gain (Loss)	$ (204.4)	$ 100.8
Net sales	1,347.3	967.2
Operating Income (Loss)	(231.6)	190.4
Amortization of Intangibles	85.3	35.2
Total Assets	19,499.7	19,349.6	$ 19,349.6
Net loss	(529.2)	(22.2)
CHC
Segment Reporting Information [Line Items]
Net sales	700.3	684.9
Operating Income (Loss)	99.5	104.3
Amortization of Intangibles	19.8	16.1
Total Assets	3,742.7	3,384.8
BCH
Segment Reporting Information [Line Items]
Net sales	362.8	0.0
Operating Income (Loss)	(398.1)	0.0
Amortization of Intangibles	35.5	0.0
Total Assets	6,416.3	7,083.5
Rx
Segment Reporting Information [Line Items]
Net sales	263.6	251.6
Operating Income (Loss)	94.3	100.0
Amortization of Intangibles	29.5	18.3
Total Assets	3,384.5	2,738.0
Specialty Sciences
Segment Reporting Information [Line Items]
Net sales	0.0	0.0
Operating Income (Loss)	(1.4)	(3.3)
Amortization of Intangibles	0.0	0.3
Total Assets	5,738.8	5,930.2
Other
Segment Reporting Information [Line Items]
Net sales	20.6	30.7
Operating Income (Loss)	5.4	10.5
Amortization of Intangibles	0.5	0.5
Total Assets	217.4	213.1
Unallocated
Segment Reporting Information [Line Items]
Net sales	0.0	0.0
Operating Income (Loss)	(31.3)	(21.1)
Amortization of Intangibles		0.0
Total Assets	$ 0.0	$ 0.0