Acquisitions and License Agreements (Schedule of Fair Value of Identifiable Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Millions	Dec. 25, 2015	Sep. 25, 2015	Apr. 16, 2015
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]
Goodwill (non-tax deductible)	$ 3,645.2	$ 3,649.4
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 (non-tax deductible)			793.7
Other assets, current and non-current			172.9
Total assets acquired			3,041.2
Current liabilities			32.6
Other liabilities (non-current)			9.1
Acquired deferred tax liabilities, net			624.9
Long-term Debt			1,121.0
Total liabilities assumed			1,787.6
Net assets acquired			1,253.6
Acquired accounts receivable			$ 73.8
Therakos
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest [Abstract]
Cash and cash equivalents		41.3
Inventory		23.5
Intangible assets		1,170.0
Goodwill (non-tax deductible)		431.7
Other assets, current and non-current		42.1
Total assets acquired		1,708.6
Current liabilities		24.7
Other liabilities (non-current)		0.6
Acquired deferred tax liabilities, net		318.8
Long-term Debt		344.8
Total liabilities assumed		688.9
Net assets acquired		1,019.7
Acquired accounts receivable		$ 22.0