Dispositions and Assets Held for Sale (Assets and Liabilities of Oncology Franchise) (Details) - Oncology - Disposal Group $ in Millions	Aug. 31, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Intangible assets	$ 1,628.3
Goodwill	565.1
Other	25.6
Current assets	2,219.0
Current liabilities	$ 116.4

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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