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Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Cash provided by operating activities:      
Net income $ 1,731.4 $ 1,487.6 $ 1,292.3
Adjustments to reconcile net income to cash provided by operating activities:      
Depreciation, amortization, depletion and accretion 1,599.3 1,441.2 1,268.2
Non-cash interest expense 85.8 71.6 70.5
Stock-based compensation 40.9 38.8 57.0
Deferred tax provision (benefit) 101.7 181.1 (15.5)
Provision for doubtful accounts, net of adjustments 53.2 41.5 19.9
Loss on extinguishment of debt 0.2 0.0 0.0
(Gain) loss on disposition of assets and asset impairments, net (1.2) (9.2) 0.4
Environmental adjustments 2.0 2.9 0.5
Loss from unconsolidated equity method investments 94.3 165.6 188.5
Other non-cash items (1.6) (0.1) (1.1)
Change in assets and liabilities, net of effects from business acquisitions and divestitures:      
Accounts receivable (71.3) (198.8) (135.4)
Prepaid expenses and other assets (29.8) (83.8) (57.0)
Accounts payable 82.8 106.4 113.8
Capping, closure and post-closure expenditures (60.8) (64.6) (59.6)
Remediation expenditures (54.9) (54.7) (57.1)
Other liabilities 43.4 64.5 101.3
Payments from retirement of certain hedging relationships 2.4 0.0 0.0
Cash provided by operating activities 3,617.8 3,190.0 2,786.7 Close
Cash used in investing activities:      
Purchases of property and equipment (1,631.1) (1,454.0) (1,316.3)
Proceeds from sales of property and equipment 29.2 32.8 19.5
Cash used in acquisitions and investments, net of cash and restricted cash acquired (2,065.3) (3,038.5) (1,221.7)
Cash received from business divestitures 6.4 50.6 46.3
Purchases of restricted marketable securities (28.9) (19.6) (30.8)
Sales of restricted marketable securities 13.1 19.7 37.9
Other 9.8 (14.0) (1.0)
Cash used in investing activities (3,666.8) (4,423.0) (2,466.1) Close
Cash provided by (used in) financing activities:      
Proceeds from credit facilities and notes payable, net of fees 39,221.1 16,446.3 5,154.3
Proceeds from issuance of senior notes, net of discount and fees 2,172.3 0.0 692.3
Payments of credit facilities and notes payable (40,410.8) (14,281.7) (5,304.5)
Issuances of common stock, net (1.2) (13.6) (12.0)
Purchases of common stock for treasury (261.8) (203.5) (252.2)
Cash dividends paid (638.1) (592.9) (552.6)
Distributions paid to non-controlling interests in consolidated subsidiary 0.0 (0.8) (33.2)
Contingent consideration payments (19.6) (9.6) (21.3)
Cash provided by (used in) financing activities 61.9 1,344.2 (329.2) Close
Effect of foreign exchange rate changes on cash 0.3 (2.5) 0.0 Close
Increase (decrease) in cash, cash equivalents, restricted cash and restricted cash equivalents 13.2 108.7 (8.6) Close
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of year 214.3 105.6 114.2
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of year $ 227.5 $ 214.3 $ 105.6