v3.22.4
Post-Employment Benefits - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Accumulated benefit obligation $ 7,700 $ 10,500  
Defined benefit plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Projected benefit obligation 8,588 12,006 $ 11,792
Actuarial (gain) loss (3,668) (8)  
Amendments $ 0 0  
Defined benefit plans | Equity securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target investment allocations for Pension Plan (as a percent) 62.50%    
Defined benefit plans | Debt securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target investment allocations for Pension Plan (as a percent) 22.50%    
Defined benefit plans | Asset allocation strategies and other holdings      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Target investment allocations for Pension Plan (as a percent) 15.00%    
Other post-employment plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Projected benefit obligation $ 667 850 795
Actuarial (gain) loss (229) 10  
Amendments $ (2)   397
Pre Sixty Five Years of Age      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Annual rate of increase in the per capita cost of covered health care obligation benefits assumed in the current year (as a percent) 6.20%    
Ultimate per capita trend rate for health care costs from 2030 and thereafter (as a percent) 4.50%    
Annual rate of increase in the per capita cost of covered health care cost benefits assumed in the current year (as a percent) 5.90%    
Ultimate per capita trend rate for health care costs from 2029 and thereafter (as a percent) 4.50%    
Post Sixty Five Years of Age      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Annual rate of increase in the per capita cost of covered health care obligation benefits assumed in the current year (as a percent) 2.00%    
Ultimate per capita trend rate for health care costs from 2030 and thereafter (as a percent) 1.80%    
Annual rate of increase in the per capita cost of covered health care cost benefits assumed in the current year (as a percent) 2.10%    
Ultimate per capita trend rate for health care costs from 2029 and thereafter (as a percent) 1.80%    
AbbVie Savings Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan expenses recorded $ 474 267 $ 191
Foreign Plan [Member]      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Projected benefit obligation $ 2,100 $ 3,200