Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of Revenue Recognized

The following table summarizes our revenue recognized in our consolidated statements of operations:

	2018		2017		2016
Net product revenue	$	22,928.8	$	21,671.4	$	20,388.4
Collaboration and other revenue(1)	1,626.9		1,199.9		833.7
Revenue	$	24,555.7	$	22,871.3	$	21,222.1

⁽¹⁾ Collaboration and other revenue associated with prior year transfers of intellectual property was $303.2 million, $145.8 million, and $146.1 million during the years ended 2018, 2017, and 2016, respectively.

Schedule of Contract Liabilities

We have the following amounts recorded for contract liabilities:

	2018		2017
Contract liabilities	$	299.3	$	335.2