v3.19.3.a.u2
Business Acquisitions - Alere Inc. (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Oct. 31, 2017
USD ($)
Oct. 03, 2017
USD ($)
$ / shares
Dec. 31, 2017
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Sep. 30, 2017
USD ($)
installment
Allocation of the fair value            
Goodwill, non-deductible       $ 23,195 $ 23,254  
Disposals as part of acquisitions            
Gain or loss on sale     $ 1,163      
Alere Inc            
Business acquisitions            
Share price of shares received in acquisition per agreement (in dollars per share) | $ / shares   $ 51.00        
Issue of equity for business acquisition   $ 4,500        
Debt assumed and subsequently repaid or refinanced   3,000        
Allocation of the fair value            
Preferred stock   $ 700        
Disposal Group, held for disposition | Alere Inc            
Disposals as part of acquisitions            
Gain or loss on sale $ 0          
Triage MeterPro Business | Disposal Group, held for disposition | Alere Inc            
Disposals as part of acquisitions            
Sale consideration           $ 400
Sale consideration receivable in annual installments           $ 240
Number of installments | installment           6
Triage MeterPro Business | Disposal Group, held for disposition | Alere Inc | Maximum            
Disposals as part of acquisitions            
Contingent consideration asset           $ 40
Epocal Inc. | Disposal Group, held for disposition | Alere Inc            
Disposals as part of acquisitions            
Sale consideration           $ 200