Acquisitions and License Agreements (Schedule of Fair Value of Identifiable Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Millions		Jun. 26, 2015	Apr. 16, 2015	Sep. 26, 2014	Aug. 14, 2014	Mar. 19, 2014
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]
Goodwill		$ 3,234.0		$ 2,401.9
Ikaria, Inc.
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]
Cash and cash equivalents			$ 77.3
Inventory			26.3
Intangible assets			1,971.0
Goodwill			814.2
Other assets, current and non-current			173.3
Total assets acquired			3,062.1
Current liabilities			32.3
Unpaid purchase consideration (current)			0.0
Other liabilities (non-current)			9.1
Acquired deferred tax liabilities, net			646.1
Long-term Debt			1,121.0
Total liabilities assumed			1,808.5
Net assets acquired			1,253.6
Acquired accounts receivable			$ 73.8
Questcor Pharmaceuticals, Inc.
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]
Cash and cash equivalents					$ 445.1
Inventory					67.9
Intangible assets					5,601.1
Goodwill					1,789.4
Other assets, current and non-current	[1]				274.3
Total assets acquired					8,177.8
Current liabilities					168.9
Unpaid purchase consideration (current)					128.8
Other liabilities (non-current)					186.8
Acquired deferred tax liabilities, net					1,906.8
Long-term Debt					0.0
Total liabilities assumed					2,391.3
Net assets acquired					5,786.5
Acquired accounts receivable					$ 87.3
Cadence Pharmaceuticals, Inc.
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]
Cash and cash equivalents						$ 43.2
Inventory						21.0
Intangible assets						1,300.0
Goodwill						318.1
Other assets, current and non-current	[1]					18.0
Total assets acquired						1,700.3
Current liabilities						48.8
Unpaid purchase consideration (current)						0.0
Other liabilities (non-current)						0.0
Acquired deferred tax liabilities, net						292.3
Long-term Debt						30.0
Total liabilities assumed						371.1
Net assets acquired						1,329.2
Acquired accounts receivable						$ 14.7

[1] This amount includes $73.8 million, $87.3 million and $14.7 million of accounts receivable for the Ikaria Acquisition, Questcor Acquisition and the Cadence Acquisition, respectively, which is also the gross contractual value.