Derivative Instruments and Hedging Activities (Schedule Of Other Comprehensive Income And Earnings From Foreign Exchange Contracts) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Foreign Exchange Contract [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) recognized in AOCI, net of tax	$ 27.9	$ 37.7	$ (96.1)
Foreign Exchange Contract [Member] | Net product sales
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) reclassified from AOCI to net product sales (Effective portion), net of tax	28.4	(1.4)	18.7
Interest Rate Contract [Member] | Cash Flow Hedging [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) recognized in AOCI, net of tax	(39.0)	(4.8)	7.9
Gain (loss) reclassified from AOCI to net product sales (Effective portion), net of tax	$ 10.2	$ 10.8	$ (1.1)