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Summary of Significant Accounting Policies (Fair Value Assumptions) (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected remaining life 5 years    
Progressive Waste Plans [Member] | Employee Stock Option [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected remaining life 1 year   1 year 6 months
Share volatility 15.04%   16.14%
Share volatility, minimum   17.72%  
Share volatility, maximum   33.54%  
Discount rate 0.41%   1.61%
Annual dividend rate 0.68% 0.80% 0.82%
Minimum [Member] | Progressive Waste Plans [Member] | Employee Stock Option [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected remaining life   6 months  
Discount rate   0.06%  
Maximum [Member] | Progressive Waste Plans [Member] | Employee Stock Option [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Expected remaining life   1 year  
Discount rate   0.12%