Discontinued Operations and Divestitures Discontinued Operations (Assets and Liabilities Held-for-sale) (Details) - Specialty Generics Disposal Group - USD ($) $ in Millions	Sep. 28, 2018	Dec. 29, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, held for sale	$ 189.0	$ 170.4
Inventory, held for sale	205.9	211.7
Property, Plant and Equipment, held for sale	561.7	553.6
Intangible Assets, held for sale	110.3	114.0
Other current assets and non-current assets, held for sale	69.9	84.5
Total assets classified as held for sale in the balance sheet	1,136.8	1,134.2
Accounts payable, held for sale	39.0	36.0
Other current and non-current liabilities, held for sale	143.4	126.6
Total liabilities classified as held for sale in the balance sheet	$ 182.4	$ 162.6

Amount classified as assets attributable to disposal group held for sale or disposed of.

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