Derivative Instruments and Hedging Activities (Details) € in Millions, $ in Millions			3 Months Ended		6 Months Ended	12 Months Ended
	Dec. 02, 2014 USD ($)	Dec. 18, 2013 USD ($)	Mar. 28, 2015 USD ($)	Dec. 27, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Jun. 27, 2015 USD ($)	Jun. 28, 2014 USD ($)	Mar. 30, 2015 USD ($)	Mar. 30, 2015 EUR (€)	Dec. 02, 2014 EUR (€)	Sep. 06, 2013 USD ($)
Derivatives, Fair Value [Line Items]
Loans payable							$ 300.0					$ 1,000.0
Derivative, loss on derivative			$ 258.2	$ 64.7	$ 0.0	$ 0.0	326.4	$ 0.0
Investment Owned, Balance, Principal Amount	$ 1,600.0	$ 2,300.0				1,200.0
Derivative, Gain (Loss) on Derivative, Net	(5.8)	(12.8)				7.0		2.6
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	1.1	0.5
Gain (loss) on ineffective portion, net					0.1	0.3	(1.0)	(2.9)
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months						(1.0)
Other expense, net [Member]
Derivatives, Fair Value [Line Items]
Derivative, loss on derivative							3.6
Treasury Lock [Member] | Other nonoperating income (expense) [Member]
Derivatives, Fair Value [Line Items]
Gain (loss) on ineffective portion, net					0.0	0.0	(0.4)	2.3
Interest Rate Swap [Member] | Other nonoperating income (expense) [Member]
Derivatives, Fair Value [Line Items]
Gain (loss) on ineffective portion, net					0.0	(0.1)	(0.7)	(5.4)
Interest Rate Swap [Member] | Other nonoperating income (expense) [Member] | Fair value hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					0.0	$ 0.0	0.0	0.9
Foreign Exchange Forward
Derivatives, Fair Value [Line Items]
Maximum remaining maturity of foreign currency derivatives						18 months
Foreign Exchange Forward | Other nonoperating income (expense) [Member]
Derivatives, Fair Value [Line Items]
Gain (loss) on ineffective portion, net					0.0	$ 0.6	0.0	0.0
Foreign Exchange Forward | Net sales [Member]
Derivatives, Fair Value [Line Items]
Gain (loss) on ineffective portion, net					(0.1)	(0.1)	(0.1)	(0.1)
Foreign Exchange Forward | Cost of sales [Member]
Derivatives, Fair Value [Line Items]
Gain (loss) on ineffective portion, net					0.2	(0.1)	0.2	0.3
Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount					755.5	533.5	452.3
Fair value hedging [Member] | Fair value hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					0.0	0.0	0.0	(3.2)
Fixed-rate Debt [Member] | Other nonoperating income (expense) [Member] | Fair value hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					0.0	0.0	0.0	(4.1)
Designated as hedging instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral							3.3
Derivative Liability, Fair Value, Amount Not Offset Against Collateral					2.3	3.0	2.0
Derivative, Gain (Loss) on Derivative, Net					(1.1)	0.7	(23.2)	(7.1)
Unrealized Gain (Loss) on Price Risk Cash Flow Derivatives, before Tax					1.4	(6.9)	(20.5)	22.3
Designated as hedging instrument [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral					3.8	3.1
Designated as hedging instrument [Member] | Treasury Lock [Member]
Derivatives, Fair Value [Line Items]
Unrealized Gain (Loss) on Price Risk Cash Flow Derivatives, before Tax					0.0	0.0	(2.7)	0.0
Designated as hedging instrument [Member] | Treasury Lock [Member] | Interest expense, net [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					0.0	(0.1)	(0.1)	0.2
Designated as hedging instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 750.0	$ 725.0			200.0		240.0
Unrealized Gain (Loss) on Price Risk Cash Flow Derivatives, before Tax					(0.3)	(9.0)	(10.1)	7.2
Designated as hedging instrument [Member] | Interest Rate Swap [Member] | Interest expense, net [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					(0.8)	(2.3)	(16.4)	3.9
Designated as hedging instrument [Member] | Interest Rate Swap [Member] | Other noncurrent liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral					0.3	0.0	0.0
Designated as hedging instrument [Member] | Foreign exchange option [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net				$ (26.4)			(1.9)
Designated as hedging instrument [Member] | Foreign Exchange Forward
Derivatives, Fair Value [Line Items]
Unrealized Gain (Loss) on Price Risk Cash Flow Derivatives, before Tax					1.7	2.1	(7.7)	15.1
Designated as hedging instrument [Member] | Foreign Exchange Forward | Interest expense, net [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					(0.4)	(1.6)	0.0	(0.2)
Designated as hedging instrument [Member] | Foreign Exchange Forward | Other nonoperating income (expense) [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					1.1	0.4	(4.4)	(2.2)
Designated as hedging instrument [Member] | Foreign Exchange Forward | Net sales [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					(1.8)	1.3	1.9	(2.5)
Designated as hedging instrument [Member] | Foreign Exchange Forward | Cost of sales [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					0.8	3.0	(4.2)	(6.3)
Designated as hedging instrument [Member] | Foreign Exchange Forward | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral					2.0	3.0	2.0
Designated as hedging instrument [Member] | Foreign Exchange Forward | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral					3.8	3.1	3.3
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral					1.9	2.0	2.6
Derivative, Gain (Loss) on Derivative, Net					(8.7)	(4.6)	(325.2)	(0.1)
Not Designated as Hedging Instrument [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral					1.0	0.7	9.1
Not Designated as Hedging Instrument [Member] | Foreign exchange option [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount | €											€ 2,000.0
Not Designated as Hedging Instrument [Member] | Foreign exchange option [Member] | Other nonoperating income (expense) [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					0.0	0.0	(26.4)	0.0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward | Interest expense, net [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					(0.7)	(2.2)	(3.4)	0.0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward | Other nonoperating income (expense) [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net					(8.0)	(2.4)	(295.4)	$ (0.1)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral					1.9	2.0	2.6
Not Designated as Hedging Instrument [Member] | Foreign Exchange Forward | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Not Offset Against Collateral					$ 1.0	$ 0.7	9.1
Omega | Designated as hedging instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount									$ 20.0
Perrigo Co PLC [Member] | Not Designated as Hedging Instrument [Member] | Foreign exchange option [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net							$ 298.1
Omega | Designated as hedging instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount									147.0
6.19% Senior Note | Omega | Omega
Derivatives, Fair Value [Line Items]
Business combination, current liabilities, long-term debt									20.0
Euro Member Countries, Euro | Designated as hedging instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount | €										€ 135.0
Credit facility indebtedness | Omega
Derivatives, Fair Value [Line Items]
Business combination, current liabilities, long-term debt									$ 544.5
Credit facility indebtedness | Euro Member Countries, Euro | Omega
Derivatives, Fair Value [Line Items]
Business combination, current liabilities, long-term debt | €										€ 500.0