v3.24.0.1
Business Acquisitions, Investments and Restructuring Charges (Acquisitions) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Purchase price:      
Cash used in acquisitions, net of cash acquired of $23.2 and $65.9, respectively $ 2,065.3 $ 3,038.5 $ 1,221.7
Excess purchase price allocated as follows:      
Goodwill 15,834.5 14,451.5 $ 12,826.0
Series of Individually Immaterial Business Acquisitions      
Purchase price:      
Cash used in acquisitions, net of cash acquired of $23.2 and $65.9, respectively 1,756.3 2,668.6  
Cash acquired 23.2 65.9  
Holdbacks 19.1 17.2  
Fair value, future minimum lease payments 0.6 15.6  
Total 1,776.0 2,701.4  
Allocated as follows:      
Restricted cash 0.0 0.7  
Accounts receivable 67.4 250.7  
Prepaid expenses 5.6 15.7  
Landfill development costs 49.1 565.4  
Property and equipment 374.3 540.0  
Operating right-of-use lease assets 14.4 61.1  
Interest rate swap 0.0 29.1  
Other assets 0.3 40.7  
Inventory 2.9 10.7  
Accounts payable (20.6) (112.4)  
Deferred revenue (10.6) (28.2)  
Environmental remediation liabilities (5.7) (57.5)  
Closure and post-closure liabilities (10.9) (173.3)  
Operating right-of-use lease liabilities (14.4) (57.1)  
Deferred income tax liabilities (25.0) (109.3)  
Other liabilities (12.6) (58.5)  
Fair value of tangible assets acquired and liabilities assumed 414.2 917.8  
Excess purchase price to be allocated 1,361.8 1,783.6  
Excess purchase price allocated as follows:      
Other intangible assets 203.9 132.9  
Goodwill 1,157.9 1,650.7  
Total allocated $ 1,361.8 $ 1,783.6