CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities
Net earnings	$ 469,962	$ 476,569
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation, depletion, accretion and amortization	295,912	278,925
Noncash operating lease expense	27,820	26,349
Net gain on sale of property, plant & equipment and businesses	(2,317)	(10,982)
Contributions to pension plans	(6,540)	(6,767)
Share-based compensation expense	23,239	24,815
Deferred tax expense (benefit)	50,346	62,232
Changes in assets and liabilities before initial effects of business acquisitions and dispositions	(76,545)	(221,001)
Other, net	(3,951)	15,989
Net cash provided by operating activities	777,926	646,129
Investing Activities
Purchases of property, plant & equipment	(268,989)	(306,893)
Proceeds from sale of property, plant & equipment	9,440	12,112
Proceeds from sale of businesses	651	1,744
Payment for businesses acquired, net of acquired cash	(5,668)	1,122
Other, net	10,819	(11,342)
Net cash used for investing activities	(253,747)	(303,257)
Financing Activities
Proceeds from short-term debt	0	366,900
Payment of short-term debt	0	(499,900)
Payment of current maturities and long-term debt	(250,018)	(17)
Proceeds from issuance of long-term debt	750,000	0
Debt issuance and exchange costs	(15,394)	0
Settlements of interest rate derivatives	(19,863)	0
Purchases of common stock	(26,132)	(2,602)
Dividends paid	(135,161)	(122,943)
Share-based compensation, shares withheld for taxes	(16,303)	(37,598)
Other, net	(1,084)	(14)
Net cash provided by (used for) financing activities	286,045	(296,174)
Net increase in cash and cash equivalents and restricted cash	810,224	46,698
Cash and cash equivalents and restricted cash at beginning of year	274,506	44,404
Cash and cash equivalents and restricted cash at end of period	$ 1,084,730	$ 91,102