Intangible Assets and Goodwill (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Amortizable intangible assets:
Gross Carrying Value, Total	$ 2,293,428,000		$ 2,293,428,000		$ 2,001,851,000
Accumulated Amortization, Total	(532,062,000)		(532,062,000)		(392,353,000)
Intangible assets, net	1,761,366,000		1,761,366,000		1,609,498,000
Weighted Average Life (Years)			11.9		12.4
Nonamortized intangible assets:
Gross Carrying Value, Total	3,527,428,000		3,527,428,000		3,640,851,000
Accumulated Amortization, Total	(532,062,000)		(532,062,000)		(392,353,000)
Intangible Assets, Net, Total	2,995,366,000		2,995,366,000		3,248,498,000
Additional Intangible Assets And Goodwill (Textuals) [Abstract]
Amortization of intangible assets	70,300,000	47,300,000	139,700,000	89,200,000
Change in carrying value of goodwill
Beginning Balance			1,896,344,000
Tax benefit on the exercise of Pharmion converted stock options			(119,000)
Ending Balance	1,896,225,000		1,896,225,000		1,896,344,000
Intangible Assets and Goodwill (Textuals) [Abstract]
Minimum amortization periods related to non IPR&D			1
Maximum amortization periods related to non IPR&D			17
Intangiable asset reclassified from nonamortizable to amortizable			287,000,000
Expected useful life			8.8
Addition to intangible assets	4,600,000		4,600,000
Decrease in gross carrying value of intangible assets	113,400,000		113,400,000
Impairment			118,000,000
Estimated amortization of intangible assets for year ending December 31, 2011			289,200,000
Estimated amortization of intangible assets for year ending December 31, 2012			139,900,000
Estimated amortization of intangible assets for year ending December 31, 2013			138,200,000
Estimated amortization of intangible assets for year ending December 31, 2014			134,100,000
Estimated amortization of intangible assets for year ending December 31, 2015			129,900,000
Acquired IPR&D product rights [Member]
Nonamortized intangible assets:
Gross Carrying Value, Total	1,234,000,000		1,234,000,000		1,639,000,000
Intangible Assets, Net, Total	1,234,000,000		1,234,000,000		1,639,000,000
Acquired developed product rights [Member]
Amortizable intangible assets:
Gross Carrying Value, Total	2,186,000,000		2,186,000,000		1,897,000,000
Accumulated Amortization, Total	(519,547,000)		(519,547,000)		(384,891,000)
Intangible assets, net	1,666,453,000		1,666,453,000		1,512,109,000
Weighted Average Life (Years)			11.9		12.3
Licenses [Member]
Amortizable intangible assets:
Gross Carrying Value, Total	64,250,000		64,250,000		64,250,000
Accumulated Amortization, Total	(4,190,000)		(4,190,000)		(2,271,000)
Intangible assets, net	60,060,000		60,060,000		61,979,000
Weighted Average Life (Years)			16.8		16.8
Technology and other [Member]
Amortizable intangible assets:
Gross Carrying Value, Total	43,178,000		43,178,000		40,601,000
Accumulated Amortization, Total	(8,325,000)		(8,325,000)		(5,191,000)
Intangible assets, net	34,853,000		34,853,000		35,410,000
Weighted Average Life (Years)			9.4		8.8
Abraxis BioScience Inc [Member]
Additional Intangible Assets And Goodwill (Textuals) [Abstract]
Amortization of intangible assets	$ 22,300,000		$ 44,800,000