Collaborative and Other Relationships - AbbVie (Details 2) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Collaborative arrangements and non-collaborative arrangement transactions
Product Revenues	$ 3,671.3	$ 3,600.1	$ 3,616.7	$ 3,489.8	$ 3,526.3	$ 3,439.0	$ 3,356.5	$ 3,131.1	$ 14,377.9	$ 13,452.9	$ 12,273.9
Costs and expenses									7,335.3	7,564.3	6,928.1
Product, net
Collaborative arrangements and non-collaborative arrangement transactions
Product Revenues	$ 2,924.8	$ 2,894.7	$ 2,880.3	$ 2,680.0	$ 2,825.7	$ 2,780.1	$ 2,757.5	$ 2,523.5	11,379.8	10,886.8	10,354.7
Product, net | U.S
Collaborative arrangements and non-collaborative arrangement transactions
Product Revenues									$ 6,713.8	$ 6,800.5	$ 7,017.1