Collaborations (Tables)

3 Months Ended

Mar. 31, 2014

Erbitux [Member]

Schedule of Collaborative Arrangements and Non-collaborative Arrangement Transactions [Table Text Block]

The following table summarizes our revenue recognized with respect to Erbitux:

	Three Months Ended
	March 31,
	2014		2013
Net product sales	$	13.2	$	25.3
Collaboration and other revenue	77.7		69.6
Total revenue	$	90.9	$	94.9

Exenatide [Member]

Schedule of Collaborative Arrangements and Non-collaborative Arrangement Transactions [Table Text Block]

	Three Months Ended
	March 31,
	2014		2013
Net product sales	$	7.6	$	64.1
Income related to termination of the exenatide collaboration with Amylin (1)	—		495.4