Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Basic EPS
Net earnings attributable to AbbVie Inc.	$ 2,024	$ 924	$ 2,263	$ 5,414
Earnings allocated to participating securities	11	11	22	26
Earnings available to common shareholders	$ 2,013	$ 913	$ 2,241	$ 5,388
Weighted-average basic shares outstanding (in shares)	1,767	1,770	1,768	1,770
Basic earnings per share (in dollars per share)	$ 1.14	$ 0.52	$ 1.27	$ 3.04
Diluted EPS
Net earnings attributable to AbbVie Inc.	$ 2,024	$ 924	$ 2,263	$ 5,414
Earnings allocated to participating securities	11	11	22	26
Earnings available to common shareholders	$ 2,013	$ 913	$ 2,241	$ 5,388
Weighted-average basic shares outstanding (in shares)	1,767	1,770	1,768	1,770
Effect of dilutive securities (in shares)	4	6	5	7
Weighted-average diluted shares outstanding (in shares)	1,771	1,776	1,773	1,777
Diluted earnings per share (in dollars per share)	$ 1.14	$ 0.51	$ 1.26	$ 3.03