v3.24.0.1
Landfill and Environmental Costs (Asset Retirement Obligation Liabilities) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Activity in Asset Retirement Obligation Liabilities      
Asset retirement obligation liabilities, beginning of year $ 1,786.4 $ 1,507.3 $ 1,346.4
Non-cash additions 61.4 60.1 47.2
Acquisitions, net of divestitures and other adjustments 12.3 173.5 32.1
Asset retirement obligation adjustments 40.1 20.0 58.5
Payments (60.8) (64.6) (59.6)
Accretion expense 97.9 89.6 82.7
Foreign currency translation (0.1) 0.5 0.0
Asset retirement obligation liabilities, end of year 1,937.2 1,786.4 1,507.3
Less: Current portion (72.4) (75.2) (68.4)
Long-term portion $ 1,864.8 $ 1,711.2 $ 1,438.9