Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows from Operating Activities:
Consolidated net earnings	$ 21.3	$ 65.5
Adjustments to reconcile consolidated net earnings to net cash provided by operating activities:
Depreciation, depletion and amortization	128.2	98.6
Stock-based compensation expense	12.0	10.9
Gain on divestitures and sales of assets	(2.9)	(3.8)
Deferred income taxes, net	5.2	(4.7)
Other items, net	(0.9)	(4.7)
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable, net	14.8	11.5
Inventories, net	(28.9)	19.0
Accounts payable	95.5	25.0
Other assets and liabilities, net	(74.4)	(25.4)
Net Cash Provided by Operating Activities	169.9	191.9
Cash Flows from Investing Activities:
Additions to property, plant and equipment	(139.8)	(110.3)
Acquisitions, net of cash acquired	18.8
Proceeds from divestitures and sales of assets	1.0	12.2
Investments in life insurance contracts, net		9.8
Other investing activities, net	(3.0)
Net Cash Used for Investing Activities	(123.0)	(88.3)
Cash Flows from Financing Activities:
Payments on finance lease obligations	(3.7)	(2.2)
Repurchases of common stock	(50.0)
Dividends paid	(38.9)	(36.1)
Proceeds from exercise of stock options	0.6	0.6
Shares withheld for employees' income tax obligations	(24.2)	(15.5)
Net Cash Used for Financing Activities	(116.2)	(53.2)
Net (Decrease) Increase in Cash, Cash Equivalents and Restricted Cash	(69.3)	50.4
Cash, Cash Equivalents and Restricted Cash, beginning of period	258.9	304.4
Cash, Cash Equivalents and Restricted Cash, end of period	$ 189.6	$ 354.8