Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic EPS
Net earnings attributable to AbbVie Inc.	$ 924	$ 766	$ 5,414	$ 4,319
Earnings allocated to participating securities	11	17	26	34
Earnings available to common shareholders	$ 913	$ 749	$ 5,388	$ 4,285
Weighted-average basic shares outstanding (in shares)	1,770	1,769	1,770	1,769
Basic earnings per share (in dollars per share)	$ 0.52	$ 0.42	$ 3.04	$ 2.42
Diluted EPS
Net earnings attributable to AbbVie Inc.	$ 924	$ 766	$ 5,414	$ 4,319
Earnings allocated to participating securities	11	17	26	34
Earnings available to common shareholders	$ 913	$ 749	$ 5,388	$ 4,285
Weighted-average basic shares outstanding (in shares)	1,770	1,769	1,770	1,769
Effect of dilutive securities (in shares)	6	7	7	7
Weighted-average diluted shares outstanding (in shares)	1,776	1,776	1,777	1,776
Diluted earnings per share (in dollars per share)	$ 0.51	$ 0.42	$ 3.03	$ 2.41