v3.24.0.1
Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Deferred tax assets    
Compensation and employee benefits $ 519 $ 497
Accruals and reserves 1,113 1,023
Chargebacks and rebates 1,431 991
Advance payments 298 547
Net operating losses and other carryforwards 14,316 10,391
Other 2,259 1,710
Total deferred tax assets 19,936 15,159
Valuation allowances (13,478) (9,627)
Total net deferred tax assets 6,458 5,532
Deferred tax liabilities    
Excess of book basis over tax basis of intangible assets (1,535) (3,590)
Excess of book basis over tax basis in investments (374) (340)
Other (746) (772)
Total deferred tax liabilities (2,655) (4,702)
Net deferred tax assets (liabilities) 3,803 830
Tax Credit Carryforward    
Valuation allowances (13,478) $ (9,627)
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 3,600  
U.S. Federal and State    
Tax Credit Carryforward    
Tax credit carryforwards 372  
U.S. Federal, State and Non-U.S.    
Tax Credit Carryforward    
Operating loss carryforwards with expiration through 2041 33,600  
U.S. Federal and Non-U.S.    
Tax Credit Carryforward    
Operating loss carryforwards $ 31,300