Restructuring Plans (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended			6 Months Ended
	Jun. 30, 2013 Restructuring Plan 2012	Dec. 31, 2012 Restructuring Plan 2012	Dec. 31, 2012 Restructuring Plan 2012 Cost of products sold	Dec. 31, 2012 Restructuring Plan 2012 Selling, general and administrative expense	Jun. 30, 2013 Restructuring Plan 2011 and Prior Years	Jun. 30, 2012 Restructuring Plan 2011 and Prior Years	Jun. 30, 2013 Restructuring Plan 2012 and 2010	Jun. 30, 2012 Restructuring Plan 2012 and 2010	Jun. 30, 2013 Restructuring Plan 2011 and 2008	Jun. 30, 2012 Restructuring Plan 2011 and 2008
Restructuring costs
Employee related severance charges		$ 167
Asset impairments and contractual obligations in restructuring charges		22
Restructuring charges	167		70	119
Restructuring reserve activity
Restructuring reserve, beginning balance of the period					129	177	115	108	56	79
Restructuring charges	167		70	119
Transfer of liability to AbbVie					(62)		(115)
Payments and other adjustments	(73)				(40)	(6)		(90)	(6)	(17)
Restructuring reserve, ending balance of the period	94				27	171		18	50	62
Accelerated depreciation in restructuring charges					16	10
Accelerated depreciation and product transfer costs									$ 4	$ 8