XML 47 R37.htm IDEA: XBRL DOCUMENT v3.10.0.1
Divestiture and Acquisitions (Formation of Elanco and IPO) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
Sep. 24, 2018
Sep. 30, 2018
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Cash and cash equivalents   $ 8,960.0 $ 6,536.2 $ 3,724.3 $ 4,582.1
Noncontrolling interests   1,074.3 $ 75.7    
Elanco Animal Health Incorporated | Spin-off          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Cash Transfered From Subsidiary to Parent $ 4,200.0        
Sale of Elanco stock (Note 3) $ 629.2        
Elanco Animal Health Incorporated          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Percentage of ownership sold (percentage) 19.80%        
Cash and cash equivalents   300.0      
Noncontrolling interests   $ 1,020.0      
Elanco Animal Health Incorporated | IPO          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of shares sold (shares) 72.3        
Price per share sold (usd per share) $ 24