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Retirement Plans and Other Retiree Benefits - Allocation of Plan Assets and Level of Valuation Input, by Major Asset Category (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]      
Percent of fixed income assets invested in US treasury or agency securities   30.00%  
Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Investment redemption notice period 0 months    
Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Investment redemption notice period 3 months    
United States | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 1,295 $ 1,360 $ 1,363
United States | Pension Plans | Fair Value, Inputs, Level 1, 2 and 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 886 936  
United States | Pension Plans | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 448 454  
United States | Pension Plans | Cash and cash equivalents | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 226 206  
United States | Pension Plans | U.S. common stocks | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1 0  
United States | Pension Plans | International common stocks | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Pension Plans | Pooled funds | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 35 20  
United States | Pension Plans | Fixed income securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 624 710  
United States | Pension Plans | Guaranteed investment contracts | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Pension Plans | Domestic, developed and emerging markets equity funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 223 315  
United States | Pension Plans | Fixed income funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 68 99  
United States | Pension Plans | Hedge funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Pension Plans | Multi-Asset funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 157 40  
United States | Pension Plans | Real estate funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Pension Plans | Other assets and liabilities, net      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (39) (30)  
International | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 537 566 $ 516
International | Pension Plans | Fair Value, Inputs, Level 1, 2 and 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 246 254  
International | Pension Plans | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 286 312  
International | Pension Plans | Cash and cash equivalents | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 21 14  
International | Pension Plans | U.S. common stocks | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2 2  
International | Pension Plans | International common stocks | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 15 20  
International | Pension Plans | Pooled funds | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 103 113  
International | Pension Plans | Fixed income securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 75 71  
International | Pension Plans | Guaranteed investment contracts | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 30 34  
International | Pension Plans | Domestic, developed and emerging markets equity funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 28 55  
International | Pension Plans | Fixed income funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 222 219  
International | Pension Plans | Hedge funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 7 7  
International | Pension Plans | Multi-Asset funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2 1  
International | Pension Plans | Real estate funds | Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 27 30  
International | Pension Plans | Other assets and liabilities, net      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 5 $ 0