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Pension and Other Retiree Benefits - Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost (Details)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pension | U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.10% 2.90% 3.10%
Expected long-term rate of return 7.50% 6.50% 6.80%
Pension | International      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 4.50% 1.80% 1.00%
Expected long-term rate of return 6.90% 4.00% 4.00%
Rate of compensation increase 3.00% 3.00% 2.70%
Post-retirement      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 5.00% 2.40% 2.20%