Inventory

The components of inventory are summarized as follows:



(In millions)	As of June 30, 2015		As of December 31, 2014
Raw materials	$	173.2	$	128.3
Work in process	516.7		511.5
Finished goods	175.8		164.2
Total inventory	$	865.7	$	804.0

As of June 30, 2015, our inventory included $35.8 million associated with our ZINBRYTA and biosimilar programs, which have been capitalized in advance of regulatory approval. As of December 31, 2014, our inventory included $6.3 million associated with our ZINBRYTA program, which had been capitalized in advance of regulatory approval.