Acquisitions and License Agreements (Schedule of Fair Value of Identifiable Assets Acquired and Liabilities Assumed) (Details) (USD $) In Millions, unless otherwise specified	Dec. 26, 2014	Sep. 26, 2014	Aug. 14, 2014		Mar. 19, 2014
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]
Goodwill	$ 2,413.7	$ 2,401.9
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			1,783.3
Other assets, current and non-current			274.3	[1]
Total assets acquired			8,171.7
Current liabilities			157.1	[2]
Unpaid purchase consideration (current)			128.8
Other liabilities (non-current)			184.8	[2]
Deferred tax liabilities, net (non-current)	1,914.5	1,900.7	1,914.5
Total liabilities assumed			2,385.2
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					18.0	[1]
Total assets acquired					1,700.3
Current liabilities					60.1	[2]
Unpaid purchase consideration (current)					0
Other liabilities (non-current)					18.7	[2]
Deferred tax liabilities, net (non-current)					292.3
Total liabilities assumed					371.1
Net assets acquired					1,329.2
Acquired accounts receivable					14.7
Acquired debt					$ 30.0

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

[2] These amounts include $30.0 million of pre-existing Cadence debt, which the Company repaid upon completion of the Cadence Acquisition.