v3.5.0.2
Unaudited Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Cash provided by operating activities:    
Net income $ 423.6 $ 578.0
Adjustments to reconcile net income to cash provided by operating activities:    
Depreciation, amortization, depletion and accretion 805.0 785.5
Non-cash interest expense 41.9 35.2
Restructuring charges 33.5 0.0
Stock-based compensation 17.7 15.1
Deferred tax provision (benefit) 58.2 (12.3)
Provision for doubtful accounts, net of adjustments 17.5 17.3
Loss on extinguishment of debt 196.2 0.0
Gain on disposition of assets, net and asset impairments (0.3) (1.6)
Withdrawal liability - multiemployer pension funds 5.6 0.0
Environmental adjustments 0.3 (1.3)
Excess income tax benefit from stock-based compensation activity and other non-cash items (20.5) (7.0)
Change in assets and liabilities, net of effects from business acquisitions and divestitures:    
Accounts receivable (70.8) (39.8)
Prepaid expenses and other assets (52.0) (64.2)
Accounts payable (19.5) 11.7
Restructuring expenditures (24.2) 0.0
Capping, closure and post-closure expenditures (56.7) (50.4)
Remediation expenditures (50.7) (50.1)
Other liabilities 54.8 108.4
Cash provided by operating activities 1,359.6 1,324.5
Cash used in investing activities:    
Purchases of property and equipment (738.7) (732.0)
Proceeds from sales of property and equipment 7.4 17.1
Cash used in business acquisitions, net of cash acquired (30.7) (535.9)
Change in restricted cash and marketable securities 10.0 8.4
Other (0.4) (0.8)
Cash used in investing activities (752.4) (1,243.2)
Cash used in financing activities:    
Proceeds from notes payable and long-term debt 3,068.6 895.4
Proceeds from issuance of senior notes, net of discount 498.9 497.9
Payments of notes payable and long-term debt (3,388.4) (908.9)
Premiums paid on extinguishment of debt (176.9) 0.0
Fees paid to issue senior notes and retire certain hedging relationships (9.5) (3.2)
Issuances of common stock 35.4 52.3
Excess income tax benefit from stock-based compensation activity 8.4 6.2
Purchases of common stock for treasury (306.6) (293.3)
Cash dividends paid (309.9) (295.0)
Distributions paid to noncontrolling interests (0.7) (0.4)
Other (3.9) (5.0)
Cash used in financing activities (584.6) (54.0)
Increase in cash and cash equivalents 22.6 27.3
Cash and cash equivalents at beginning of year 32.4 75.2
Cash and cash equivalents at end of period $ 55.0 $ 102.5