Pending Agreement and Plan of Reorganization with AbbVie Inc. - Narrative (Details) (AbbVie Inc. [Member], Pharmacyclics, Inc. [Member], Scenario, Plan [Member], USD $)	0 Months Ended
	Mar. 23, 2015
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	$ 21,000,000,000
Loss on Contract Termination	$ 680,000,000
Cash [Member]
Business Acquisition [Line Items]
Business Acquisition, Share Price	$ 261.25
Stock Distribution [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Fair Market Value Per Share	$ 261.25
Cash and Stock Distribution [Member]
Business Acquisition [Line Items]
Business Acquisition, Share Price	$ 152.25
Business Acquisition, Equity Interest Issued or Issuable, Fair Market Value Per Share	$ 109.00