Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 segment customer	Jun. 30, 2013
Segment Information
Number of Operating Segments			1
Number of principal customers			3
Segment and Geographic Area Information
Net sales	$ 4,926	$ 4,692	$ 9,489	$ 9,021
HUMIRA
Segment and Geographic Area Information
Net sales	3,288	2,606	5,925	4,850
AndroGel
Segment and Geographic Area Information
Net sales	218	258	472	498
Synagis
Segment and Geographic Area Information
Net sales	74	70	428	415
Kaletra
Segment and Geographic Area Information
Net sales	216	278	411	497
Lupron
Segment and Geographic Area Information
Net sales	186	199	375	380
Synthroid
Segment and Geographic Area Information
Net sales	166	153	323	272
Sevoflurane
Segment and Geographic Area Information
Net sales	154	137	296	274
Creon
Segment and Geographic Area Information
Net sales	110	106	217	196
Duodopa
Segment and Geographic Area Information
Net sales	56	44	108	83
Dyslipidemia products
Segment and Geographic Area Information
Net sales	65	371	161	715
All other
Segment and Geographic Area Information
Net sales	$ 393	$ 470	$ 773	$ 841