v3.20.4
Fourth Quarter Financial Results (unaudited) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Oct. 30, 2020
Sep. 11, 2020
Jun. 17, 2020
Feb. 20, 2020
Nov. 01, 2019
Sep. 06, 2019
Jun. 20, 2019
Feb. 21, 2019
Nov. 02, 2018
Sep. 07, 2018
Jun. 14, 2018
Feb. 15, 2018
Dec. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]                                
Net revenues                         $ 13,858 $ 45,804 $ 33,266 $ 32,753
Gross margin                         9,174      
Net earnings attributable to AbbVie Inc.                         $ 36 [1] $ 4,616 $ 7,882 $ 5,687
Basic earnings per share (in dollars per share)                         $ 0.01 $ 2.73 $ 5.30 $ 3.67
Diluted earnings per share (in dollars per share)                         0.01 2.72 5.28 3.66
Cash dividends declared per common share (in dollars per share) $ 1.30 $ 1.18 $ 1.18 $ 1.18 $ 1.18 $ 1.07 $ 1.07 $ 1.07 $ 1.07 $ 0.96 $ 0.96 $ 0.96 $ 1.30 $ 4.84 $ 4.39 $ 3.95
After-tax cost related to change in fair value of contingent consideration liabilities                         $ 4,700 $ 5,753 $ 3,091 $ 49
After-tax benefit due to impacts related to tax law changes                         $ 1,500      
[1] Fourth quarter results in 2020 included after-tax charges of $4.7 billion related to the change in fair value of contingent consideration liabilities partially offset by an after-tax benefit of $1.5 billion due to impacts related to tax law changes.