Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities - text links (Details) € in Millions		3 Months Ended			6 Months Ended
		Jul. 02, 2016 USD ($)	Jun. 27, 2015 USD ($)	Mar. 28, 2015 USD ($)	Jul. 02, 2016 USD ($)	Jun. 27, 2015 USD ($)	Dec. 31, 2015 USD ($)	Mar. 30, 2015 USD ($)	Mar. 30, 2015 EUR (€)	Dec. 05, 2014 USD ($)
Derivative [Line Items]
Fair value, assets, level 1, level 2, level 3 Transfers, Amount					$ 0	$ 0
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months		$ (1,000,000)			(1,000,000)
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		400,000	$ 100,000		600,000	(200,000)
Derivative, Gain (Loss) on Derivative, Net					7,000,000
Derivative, Loss on Derivative					0	300,000,000
Term loans	[1]									$ 300,000,000
Proceeds from Issuance of Debt					1,200,000,000
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		1,000,000	(19,200,000)		1,200,000	(21,500,000)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		1,000,000			1,000,000		$ 2,300,000
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(300,000)	(11,300,000)		(7,700,000)	(13,100,000)
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		1,800,000			1,800,000		1,900,000
Derivative, Gain (Loss) on Derivative, Net		(2,200,000)	4,200,000		(9,000,000)	(254,000,000)
Interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount			240,000,000			240,000,000	200,000,000
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		0	(14,000,000)		$ (9,000,000)	(12,000,000)
Foreign exchange forward [Member]
Derivative [Line Items]
Maximum Remaining Maturity of Foreign Currency Derivatives					15 months
Foreign exchange forward [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(300,000)	2,700,000		$ 1,300,000	(1,100,000)
Foreign exchange contract [Member]
Derivative [Line Items]
Derivative, Notional Amount		500,400,000			500,400,000		755,500,000
Foreign exchange option [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net			(1,900,000)
Omega [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net			0
Omega [Member] | Interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount								$ 147,000,000
Credit facility indebtedness | Omega [Member]
Derivative [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt								544,500,000
Euro Member Countries, Euro | Interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount | €									€ 135.0
Euro Member Countries, Euro | Credit facility indebtedness | Omega [Member]
Derivative [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt | €									€ 500.0
Perrigo Co PLC [Member] | Foreign exchange option [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net				$ 259,800,000
Omega [Member] | Interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Notional Amount								20,000,000
Other liabilities [Member] | Foreign exchange forward [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		1,000,000			1,000,000		2,000,000
Other liabilities [Member] | Foreign exchange forward [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		1,800,000			1,800,000		1,900,000
Other noncurrent liabilities [Member] | Interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		0			0		$ 300,000
Other expense, net
Derivative [Line Items]
Derivative, Loss on Derivative			3,600,000
Interest expense, net | Treasury Lock [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		0	(100,000)		0	(100,000)
Interest expense, net | Interest rate swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(600,000)	(19,100,000)		(1,100,000)	(18,200,000)
Interest expense, net | Foreign exchange forward [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		(600,000)	0		(900,000)	0
Interest expense, net | Foreign exchange forward [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net		(600,000)	(1,000,000)		(500,000)	(3,500,000)
Sales revenue, goods, net [Member] | Foreign exchange forward [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		(100,000)	0		100,000	(300,000)
Sales revenue, goods, net [Member] | Foreign exchange forward [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		200,000	2,000,000		800,000	1,900,000
Cost of sales [Member] | Foreign exchange forward [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		(100,000)	100,000		0	100,000
Cost of sales [Member] | Foreign exchange forward [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		600,000	(1,800,000)		900,000	(4,600,000)
Other nonoperating income (expense) [Member] | Interest rate swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		0	0		(100,000)	0
Other nonoperating income (expense) [Member] | Foreign exchange forward [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net		600,000	0		600,000	0
Other nonoperating income (expense) [Member] | Foreign exchange forward [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		1,400,000	(200,000)		1,500,000	(500,000)
Other nonoperating income (expense) [Member] | Foreign exchange forward [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative, Gain (Loss) on Derivative, Net		$ (1,600,000)	$ 5,200,000		$ (8,500,000)	$ (250,500,000)
6.19% senior notes | Omega [Member] | Omega [Member]
Derivative [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt								$ 20,000,000

[1] Debt denominated in euros subject to fluctuations in the euro-to-U.S. dollar exchange rate.