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Property, Plant and Equipment-Net (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Property, Plant and Equipment-Net        
Gross property plant and equipment $ 15,220   $ 15,244  
Less: Accumulated depreciation and amortization 8,238   8,103  
Net property, plant and equipment 6,982   7,141  
Construction in progress expenditures incurred but not yet paid 72 $ 45 68 $ 53
Depreciation and amortization 252 204    
Land        
Property, Plant and Equipment-Net        
Gross property plant and equipment 114   114  
Machinery and equipment        
Property, Plant and Equipment-Net        
Gross property plant and equipment 13,679   13,716  
Changes in plant turnaround activity        
Balance at the beginning of the period 352 312 312  
Additions 24 7    
Depreciation (52) (31)    
Effect of exchange rate changes and other (1) 0    
Balance at the end of the period 323 $ 288 352 $ 312
Buildings and improvements        
Property, Plant and Equipment-Net        
Gross property plant and equipment 1,015   1,020  
Construction in progress        
Property, Plant and Equipment-Net        
Gross property plant and equipment $ 412   $ 394