Debt (2015 Term Credit Agreement) (Narrative) (Details) - USD ($) $ in Millions			9 Months Ended
	Oct. 28, 2015	Jul. 15, 2015	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Net debt carrying amount			$ 6,347.8	$ 8,138.5
Term Loan | Subsequent Event
Debt Instrument [Line Items]
Default provision, term	60 days
Term Loan | Credit Facility
Debt Instrument [Line Items]
Net debt carrying amount		$ 1,600.0
Guarantor obligations, triggering amount		$ 350.0
Term Loan | Credit Facility | Trailing Four Quarters
Debt Instrument [Line Items]
Debt instrument, covenant description			3.75 to 1.00
Term Loan | Credit Facility | Three Full Fiscal Quarters Following Qualifying Acquisition
Debt Instrument [Line Items]
Debt instrument, covenant description			4.25 to 1.00
Term Loan | Credit Facility | Subsequent Four Fiscal Quarters Following Completion of Perrigo Proposal
Debt Instrument [Line Items]
Debt instrument, covenant description			4.75 to 1.00
Term Loan | Credit Facility | Subsequent Two Fiscal Quarters
Debt Instrument [Line Items]
Debt instrument, covenant description			4.25 to 1.00
Term Loan | Credit Facility | Any Fiscal Quarter Thereafter
Debt Instrument [Line Items]
Debt instrument, covenant description			3.75 to 1.00
Term Loan | Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.375%
Term Loan | Credit Facility | Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.375%
Term Loan | Closing Date Loan
Debt Instrument [Line Items]
Net debt carrying amount		$ 1,000.0
Term Loan | Delayed Draw Loan
Debt Instrument [Line Items]
Net debt carrying amount		$ 600.0