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Financial Instruments - Derivative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Cash and Cash Equivalents [Line Items]        
Credit Derivative, Maximum Exposure, Undiscounted $ 114      
Cash and cash equivalents 4,385 $ 3,923    
Restricted cash and cash equivalents 460 888    
Restricted Cash and Cash Equivalents, Noncurrent 103 100    
Total cash and cash equivalents and restricted cash and cash equivalents presented in the consolidated statements of cash flows $ 4,948 $ 4,911 $ 6,063 $ 6,340
Export Proceeds, Percent 100.00% 30.00% 30.00%  
Designated For Export Proceeds        
Cash and Cash Equivalents [Line Items]        
Restricted cash and cash equivalents $ 300 $ 700    
Talc-Related Litigation        
Cash and Cash Equivalents [Line Items]        
Restricted cash and cash equivalents $ 200