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Pension Plans and Other Benefits - Fair Value Assumption
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
International Equity Securities      
The assumptions used to determine net benefit cost were as follows:      
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage 55.00% 57.00%  
North American Pension Plans      
The assumptions used to determine benefit obligations were as follows:      
Discount rate 2.84% 2.40% 3.12%
Expected return on plan assets 3.25% 3.89% 5.13%
Rate of compensation increase 3.00% 3.00% 3.00%
The assumptions used to determine net benefit cost were as follows:      
Discount rate 2.44% 3.12% 4.09%
Service cost discount rate 2.64% 3.15% 4.00%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate 1.90% 2.83% 3.77%
Expected return on plan assets 3.89% 4.88% 5.14%
Rate of compensation increase 3.00% 3.00% 3.50%