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Restructuring Plans - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
COVID-19 Test Manufacturing Network Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 499     $ 441
Inventory sold that was previously estimated to have no net realizable value   $ 181    
COVID-19 Test Manufacturing Network Restructuring Plan | Inventory- Related Charges        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 248     248
COVID-19 Test Manufacturing Network Restructuring Plan | Fixed Asset Write-Downs        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 80     80
COVID-19 Test Manufacturing Network Restructuring Plan | Other Exit Costs        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 171     113
Reduction of restructuring estimate   $ 58    
Restructuring Plan 2022, Streamline of Operations and Improve Efficiencies for Four Businesses        
Restructuring Cost and Reserve [Line Items]        
Employee related severance and other charges     $ 234  
Inventory charges     23  
Fixed asset impairment charges     4  
Restructuring Plan 2022, Streamline of Operations and Improve Efficiencies for Four Businesses | Cost of products sold        
Restructuring Cost and Reserve [Line Items]        
Employee related severance and other charges     59  
Restructuring Plan 2022, Streamline of Operations and Improve Efficiencies for Four Businesses | Research and Development        
Restructuring Cost and Reserve [Line Items]        
Employee related severance and other charges     36  
Restructuring Plan 2022, Streamline of Operations and Improve Efficiencies for Four Businesses | Selling, General and Administrative Expense        
Restructuring Cost and Reserve [Line Items]        
Employee related severance and other charges     $ 139  
Restructuring Plan 2021, Streamline of Operations and Improve Efficiencies        
Restructuring Cost and Reserve [Line Items]        
Employee related severance and other charges       68
Restructuring charges       68
Restructuring Plan 2021, Streamline of Operations and Improve Efficiencies | Cost of products sold        
Restructuring Cost and Reserve [Line Items]        
Employee related severance and other charges       16
Restructuring Plan 2021, Streamline of Operations and Improve Efficiencies | Research and Development        
Restructuring Cost and Reserve [Line Items]        
Employee related severance and other charges       4
Restructuring Plan 2021, Streamline of Operations and Improve Efficiencies | Selling, General and Administrative Expense        
Restructuring Cost and Reserve [Line Items]        
Employee related severance and other charges       $ 48