Litigation and Environmental Matters (Details) (USD $)		1 Months Ended		3 Months Ended
	Jun. 30, 2012	Feb. 29, 2012 HUMIRA patent infringement claim, NYU and Centocor	May 31, 2012 Depakote state	Jun. 30, 2012 Depakote	Mar. 31, 2012 Depakote	Sep. 30, 2011 Depakote	Jun. 30, 2012 Other legal proceedings and environmental exposures
Loss Contingencies
Maximum expected cleanup exposure for individual site	$ 3,000,000
Maximum expected cleanup exposure in aggregate	15,000,000
Damage award reversed		1,670,000,000
Charge recorded related to Depakote during the period					100,000,000	1,500,000,000
Number of states with whom Medicaid-related claims were resolved			49
Number of states with whom consumer protection claims were resolved			45
Settlement amount paid				800,000,000
Settlement amount				1,600,000,000
Other legal proceedings or environmental exposure, minimum							90,000,000
Other legal proceedings or environmental exposure, maximum							115,000,000
Recorded reserve balance for legal proceedings and exposures							$ 95,000,000