v3.10.0.1
Unaudited Consolidated Statements of Cash Flows - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Cash provided by operating activities:    
Net income $ 473.6 $ 391.2
Adjustments to reconcile net income to cash provided by operating activities:    
Depreciation, amortization, depletion and accretion 559.2 548.1
Non-cash interest expense 21.4 21.9
Restructuring related charges 13.3 8.5
Stock-based compensation 19.9 17.7
Deferred tax provision 52.4 21.2
Provision for doubtful accounts, net of adjustments 13.6 14.8
Loss on extinguishment of debt 0.3 0.0
Loss (gain) on disposition of assets and asset impairments, net 0.6 (8.5)
Withdrawal costs - multiemployer pension funds 0.0 1.1
Environmental adjustments 2.5 0.0
Loss from unconsolidated equity method investment 0.1 6.0
Other non-cash items 0.5 (0.5)
Change in assets and liabilities, net of effects from business acquisitions and divestitures:    
Accounts receivable (17.7) (91.6)
Prepaid expenses and other assets 48.0 27.0
Accounts payable 30.7 8.6
Restructuring expenditures (12.6) (10.9)
Capping, closure and post-closure expenditures (22.1) (28.3)
Remediation expenditures (21.2) (23.8)
Other liabilities (2.6) (23.3)
Proceeds from retirement of certain hedging relationships 31.1 0.0
Cash provided by operating activities 1,191.0 879.2
Cash used in investing activities:    
Purchases of property and equipment (542.1) (497.5)
Proceeds from sales of property and equipment 4.3 3.1
Cash used in business acquisitions and investments, net of cash acquired (69.3) (81.7)
Cash received from (used in) business divestitures 1.1 (14.3)
Purchases of restricted marketable securities (32.1) (6.7)
Sales of restricted marketable securities 31.9 6.5
Other 0.2 0.1
Cash used in investing activities (606.0) (590.5)
Cash used in financing activities:    
Proceeds from notes payable and long-term debt, net of fees 2,418.7 2,262.3
Proceeds from issuance of senior notes, net of discount and fees 781.9 0.0
Payments of notes payable and long-term debt and senior notes (3,133.8) (2,147.1)
Issuances of common stock, net 8.2 19.8
Purchases of common stock for treasury (474.0) (230.7)
Cash dividends paid (227.7) (217.0)
Distributions paid to noncontrolling interests in consolidated subsidiary (0.6) (0.7)
Other (4.1) (4.1)
Cash used in financing activities (631.4) (317.5)
(Decrease) increase in cash, cash equivalents, restricted cash and restricted cash equivalents (46.4) (28.8)
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of year 179.1 113.0
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of period $ 132.7 $ 84.2