Reserves for Discounts and Allowances (Details 1) $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($)
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	$ 1,198.9
Current Provisions Relating To Sales In Current Year	2,021.6
Adjustments Relating To Prior Years	(26.3)
Payments/Returns Relating To Sales in Current Year	(1,270.1)
Payments/Returns Relating To Sales in Prior Year	(749.4)
Ending Balance	1,174.7
Discounts
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	131.1
Current Provisions Relating To Sales In Current Year	387.5
Adjustments Relating To Prior Years	(1.3)
Payments/Returns Relating To Sales in Current Year	(251.4)
Payments/Returns Relating To Sales in Prior Year	(126.5)
Ending Balance	139.4
Contractual adjustments
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	1,027.3
Current Provisions Relating To Sales In Current Year	1,624.2
Adjustments Relating To Prior Years	(25.7)
Payments/Returns Relating To Sales in Current Year	(1,018.7)
Payments/Returns Relating To Sales in Prior Year	(612.9)
Ending Balance	994.2
Returns
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	40.5
Current Provisions Relating To Sales In Current Year	9.9
Adjustments Relating To Prior Years	0.7
Payments/Returns Relating To Sales in Current Year	0.0
Payments/Returns Relating To Sales in Prior Year	(10.0)
Ending Balance	$ 41.1