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Consolidated Statements of Cash Flows - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Cash Flows from Operating Activities:      
Net income $ 696.4 $ 738.0 $ 668.6
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation, depletion, and amortization of intangibles 387.5 410.9 391.4
Amortization of deferred financing costs 23.4 8.6 10.0
Loss on early extinguishment of debt 22.2    
Share-based compensation expense 30.4 23.5 20.6
Deferred income tax provision (benefit) 60.3 38.7 (84.5)
Net loss on impairment of assets   3.1 13.5
Pension and post-retirement benefits expense, net of contributions (26.9) 3.1 (20.4)
Other, net 4.8 7.1 3.0
Decrease (increase) in assets —      
Accounts receivable 56.4 (56.1) (115.1)
Inventories 1.4 (35.6) (21.0)
Prepaid expenses and other current assets (6.9) (2.1) (5.2)
(Decrease) increase in liabilities —      
Accounts payable (32.4) (17.6) 41.0
Accrued liabilities (0.1) 5.5 8.4
Federal and state income tax payable / receivable (9.1) 53.0 (54.2)
Net cash provided by operating activities 1,207.4 1,180.1 856.1
Cash Flows from Investing Activities:      
Additions to property, plant, and equipment (399.5) [1] (551.4) [1] (343.0)
Acquisitions of businesses, net of cash acquired   (56.3) (273.8)
Additions to other long term assets (3.8) (4.5) (7.8)
Proceeds from asset disposals 4.1 1.5 16.6
Purchases of marketable debt securities, net of redemptions (146.1)    
Other, net (1.3) 2.5 (1.1)
Net cash used for investing activities (546.6) (608.2) (609.1)
Cash Flows from Financing Activities:      
Proceeds from issuance of debt 895.8   997.8
Repayments of debt and capital lease obligations (923.4) (151.3) (1,011.9)
Financing costs paid (8.3)   (6.8)
Common stock dividends paid (298.7) (268.1) (237.6)
Shares withheld to cover employee restricted stock taxes (8.2) (7.9) (10.8)
Other, net     (0.1)
Net cash used for financing activities (342.8) (427.3) (269.4)
Net increase (decrease) in cash and cash equivalents 318.0 144.6 (22.4)
Cash and cash equivalents, beginning of year 361.5 216.9 239.3
Cash and cash equivalents, end of year $ 679.5 $ 361.5 $ 216.9
[1] Includes “Additions to property, plant, and equipment” and excludes cash used for “Acquisitions of businesses, net of cash acquired” as reported on our Consolidated Statements of Cash Flows.