Fourth Quarter Financial Results (unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions													3 Months Ended	12 Months Ended
	Oct. 29, 2021	Sep. 10, 2021	Jun. 17, 2021	Feb. 18, 2021	Oct. 30, 2020	Sep. 11, 2020	Jun. 17, 2020	Feb. 20, 2020	Nov. 01, 2019	Sep. 06, 2019	Jun. 20, 2019	Feb. 21, 2019	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Net revenues													$ 14,886	$ 56,197	$ 45,804	$ 33,266
Gross margin													10,566
Net earnings attributable to AbbVie Inc.													$ 4,044	$ 11,542	$ 4,616	$ 7,882
Basic earnings per share (in dollars per share)													$ 2.27	$ 6.48	$ 2.73	$ 5.30
Diluted earnings per share (in dollars per share)													2.26	6.45	2.72	5.28
Cash dividends declared per common share (in dollars per share)	$ 1.41	$ 1.30	$ 1.30	$ 1.30	$ 1.30	$ 1.18	$ 1.18	$ 1.18	$ 1.18	$ 1.07	$ 1.07	$ 1.07	$ 1.41	$ 5.31	$ 4.84	$ 4.39