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Pensions and Other Postretirement Benefit Plans - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]      
Defined contribution plan expense $ 443 $ 468 $ 402
Cash contributions to retirement plans $ 45 $ 42 $ 41
U.S. equity funds | United States      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 10.00%    
International equity funds | United States      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 10.00%    
Fixed income funds | United States      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 80.00%    
Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Estimated contributions to plan $ 40    
Minimum | Fixed income funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 30.00%    
Minimum | Equity funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 0.00%    
Minimum | Multi-asset funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 0.00%    
Minimum | Alternative investments | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 0.00%    
Minimum | Real estate funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 0.00%    
Minimum | Derivative funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 0.00%    
Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Estimated contributions to plan $ 50    
Maximum | Fixed income funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 90.00%    
Maximum | Equity funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 25.00%    
Maximum | Multi-asset funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 40.00%    
Maximum | Alternative investments | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 4.00%    
Maximum | Real estate funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 4.00%    
Maximum | Derivative funds | Foreign Plan      
Defined Benefit Plan Disclosure [Line Items]      
Target allocations for investments 45.00%