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Income Taxes - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Apr. 01, 2024
Tax Credit Carryforward [Line Items]          
Deferred tax assets valuation allowance   $ 1,061 $ 689    
Effective tax rate (as a percent)   16.70% 25.40% 4.50%  
Tax Cuts and Jobs Act of 2017 transition tax in current accrued income taxes payable   $ 211 $ 189    
Tax Cuts and Jobs Act of 2017 transition tax long term income taxes payable     218    
Unrecognized tax benefits that would affect the effective tax rate   686      
Interest and penalties related to unrecognized tax benefits, expense (benefit) recognized on a gross basis   25 83 $ (2)  
Interest and penalties related to unrecognized tax benefits, accrued on a gross basis   207 183    
Income tax benefits attributable to reduced tax rates or exemptions in foreign locations   $ 87 $ 100 $ 142  
EPS impact of reduced tax rates or exemptions in foreign locations (in dollars per share)   $ 0.16 $ 0.18 $ 0.25  
Undistributed earnings not permanently reinvested $ 100        
Undistributed earnings   $ 1,200      
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Health Care Segment          
Tax Credit Carryforward [Line Items]          
Ownership interest of outstanding shares ( as a percent)         80.10%
Federal jurisdiction          
Tax Credit Carryforward [Line Items]          
Tax effected operating loss, capital loss, and tax credit carryovers   $ 153      
Federal jurisdiction | Minimum          
Tax Credit Carryforward [Line Items]          
Tax effected operating loss, capital loss, and tax credit carryovers, expiration date (in years)   5 years      
Federal jurisdiction | Maximum          
Tax Credit Carryforward [Line Items]          
Tax effected operating loss, capital loss, and tax credit carryovers, expiration date (in years)   20 years      
State jurisdiction          
Tax Credit Carryforward [Line Items]          
Tax effected operating loss, capital loss, and tax credit carryovers   $ 68      
State jurisdiction | Minimum          
Tax Credit Carryforward [Line Items]          
Tax effected operating loss, capital loss, and tax credit carryovers, expiration date (in years)   5 years      
International jurisdiction          
Tax Credit Carryforward [Line Items]          
Tax effected operating loss, capital loss, and tax credit carryovers   $ 52      
International jurisdiction | Minimum          
Tax Credit Carryforward [Line Items]          
Tax effected operating loss, capital loss, and tax credit carryovers, expiration date (in years)   1 year